FPUS51 KBUF 181040 ZFPBUF Zone Forecasts for Western New York National Weather Service Buffalo NY 640 AM EDT Mon May 18 2026 NYZ001-181800- Niagara- Including the city of Niagara Falls 640 AM EDT Mon May 18 2026 .TODAY...Becoming mostly sunny. Very warm with highs ranging from the lower 80s along the Lake Ontario shore to the upper 80s inland. Southwest winds 10 mph or less, increasing to 10 to 15 mph with gusts up to 30 mph. .TONIGHT...Partly cloudy in the evening, then mostly cloudy with a chance of showers overnight. Warm with lows ranging from the lower 60s along the Lake Ontario shore to the mid 60s inland. Southwest winds 5 to 10 mph, increasing to 10 to 15 mph. Chance of rain 40 percent. .TUESDAY...Becoming mostly sunny. Breezy. Very warm with highs in the mid 80s. Southwest winds 10 to 20 mph with gusts up to 35 mph. .TUESDAY NIGHT...Showers with a chance of thunderstorms in the evening, then showers overnight. Cooler with lows ranging from the lower 50s along the Lake Ontario shore to the mid 50s inland. Southwest winds 10 to 15 mph with gusts up to 35 mph. Chance of rain 90 percent. .WEDNESDAY...Mostly cloudy with showers likely in the morning, then mostly sunny in the afternoon. Much cooler. Less humid with highs in the mid 60s. West winds 5 to 10 mph, increasing to 10 to 15 mph. Chance of rain 70 percent. .WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 40s. .THURSDAY...Mostly sunny. Highs in the upper 50s. .THURSDAY NIGHT...Partly cloudy. Lows in the lower 40s. .FRIDAY...Mostly cloudy. Highs in the mid 60s. .FRIDAY NIGHT...Mostly cloudy with a 50 percent chance of showers. Lows around 50. .SATURDAY...Mostly cloudy with a 50 percent chance of showers. Highs in the upper 60s. .SATURDAY NIGHT...Mostly cloudy with a 40 percent chance of showers. Lows in the lower 50s. .SUNDAY...Mostly cloudy with a 40 percent chance of showers. Highs around 70. $$ NYZ010-181800- Northern Erie- Including the city of Buffalo 640 AM EDT Mon May 18 2026 .TODAY...Mostly sunny. Very warm with highs ranging from the lower 80s along the Lake Erie shore to the mid 80s inland. Southwest winds 10 to 15 mph. .TONIGHT...Mainly clear in the evening, then becoming mostly cloudy. Warm with lows in the upper 60s. Southwest winds 5 to 10 mph. .TUESDAY...Becoming mostly sunny. Warm with highs ranging from the lower 80s along the Lake Erie shore to the mid 80s inland. Southwest winds 10 to 20 mph with gusts up to 35 mph. .TUESDAY NIGHT...Showers with a chance of thunderstorms in the evening, then showers overnight. Cooler with lows in the mid 50s. Southwest winds 10 to 15 mph with gusts up to 30 mph in the evening. Chance of rain 90 percent. .WEDNESDAY...Mostly cloudy with showers in the morning, then mostly sunny in the afternoon. Much cooler. Less humid with highs in the mid 60s. West winds 5 to 10 mph. Chance of rain 90 percent. .WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 40s. .THURSDAY...Mostly sunny. Highs in the upper 50s. .THURSDAY NIGHT...Partly cloudy. Lows in the mid 40s. .FRIDAY...Mostly cloudy. Highs in the upper 60s. .FRIDAY NIGHT...Mostly cloudy with a 50 percent chance of showers. Lows in the lower 50s. .SATURDAY...Showers likely. Highs in the upper 60s. Chance of rain 60 percent. .SATURDAY NIGHT...Mostly cloudy with a 50 percent chance of showers. Lows in the lower 50s. .SUNDAY...Mostly cloudy with a 50 percent chance of showers. Highs in the lower 70s. $$ NYZ002-181800- Orleans- Including the city of Medina 640 AM EDT Mon May 18 2026 .TODAY...Becoming mostly sunny. Very warm with highs ranging from the lower 80s along the Lake Ontario shore to the upper 80s inland. Southwest winds 10 mph or less, increasing to 10 to 15 mph. .TONIGHT...Partly cloudy in the evening, then mostly cloudy with a chance of showers overnight. Warm with lows ranging from the lower 60s along the Lake Ontario shore to the upper 60s inland. Southwest winds 10 mph or less. Chance of rain 30 percent. .TUESDAY...Becoming mostly sunny. Very warm with highs ranging from the lower 80s along the Lake Ontario shore to the mid 80s inland. Southwest winds 10 to 20 mph with gusts up to 35 mph. .TUESDAY NIGHT...Showers with a chance of thunderstorms in the evening, then showers overnight. Cooler with lows in the mid 50s. Southwest winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 80 percent. .WEDNESDAY...Mostly cloudy with showers likely in the morning, then mostly sunny in the afternoon. Much cooler. Less humid with highs in the lower 60s. West winds 10 to 15 mph. Chance of rain 60 percent. .WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 40s. .THURSDAY...Mostly sunny. Highs in the upper 50s. .THURSDAY NIGHT...Partly cloudy. Lows in the lower 40s. .FRIDAY...Mostly cloudy. Highs in the mid 60s. .FRIDAY NIGHT...Mostly cloudy with a 50 percent chance of showers. Lows in the upper 40s. .SATURDAY...Mostly cloudy with a 50 percent chance of showers. Highs in the upper 60s. .SATURDAY NIGHT...Mostly cloudy with a 40 percent chance of showers. Lows in the lower 50s. .SUNDAY...Mostly cloudy with a 40 percent chance of showers. Highs around 70. $$ NYZ011-181800- Genesee- Including the city of Batavia 640 AM EDT Mon May 18 2026 .TODAY...Mostly sunny. Very warm with highs in the upper 80s. Southwest winds 10 to 15 mph. .TONIGHT...Mainly clear in the evening, then becoming partly cloudy. Warm with lows in the upper 60s. Southwest winds 5 to 10 mph. .TUESDAY...Becoming mostly sunny. Very warm with highs in the mid 80s. Southwest winds 10 to 20 mph with gusts up to 35 mph. .TUESDAY NIGHT...Showers likely with a chance of thunderstorms in the evening, then showers overnight. Cooler with lows in the mid 50s. Southwest winds 10 to 15 mph with gusts up to 30 mph, becoming west. Chance of rain 80 percent. .WEDNESDAY...Mostly cloudy with showers in the morning, then mostly sunny in the afternoon. Much cooler. Less humid with highs in the mid 60s. West winds 10 to 15 mph. Chance of rain 80 percent. .WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 40s. .THURSDAY...Mostly sunny. Highs in the mid 50s. .THURSDAY NIGHT...Partly cloudy. Lows in the lower 40s. .FRIDAY...Mostly cloudy. Highs in the mid 60s. .FRIDAY NIGHT...Showers likely. Lows around 50. Chance of rain 60 percent. .SATURDAY...Showers likely. Highs in the mid 60s. Chance of rain 60 percent. .SATURDAY NIGHT...Mostly cloudy with a 50 percent chance of showers. Lows in the lower 50s. .SUNDAY...Mostly cloudy with a 50 percent chance of showers. Highs around 70. $$ NYZ085-181800- Southern Erie- Including the cities of Orchard Park and Springville 640 AM EDT Mon May 18 2026 .TODAY...Mostly sunny. Very warm with highs ranging from the lower 80s along the Lake Erie shore to the mid 80s inland. Light winds, becoming southwest 5 to 10 mph. .TONIGHT...Mainly clear in the evening, then becoming mostly cloudy. Warm with lows in the upper 60s. Southwest winds 10 mph or less. .TUESDAY...Mostly sunny. Very warm with highs in the mid 80s. Southwest winds 10 mph or less, increasing to 10 to 15 mph with gusts up to 30 mph. .TUESDAY NIGHT...Showers with a chance of thunderstorms in the evening, then showers overnight. Cooler with lows in the mid 50s. Southwest winds 10 to 15 mph, diminishing to 10 mph or less. Chance of rain 90 percent. .WEDNESDAY...Mostly cloudy with showers in the morning, then partly sunny with a chance of showers in the afternoon. Much cooler. Less humid with highs ranging from the lower 60s on the hilltops to the mid 60s across the lower elevations. Light winds. Chance of rain 90 percent. .WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 40s. .THURSDAY...Mostly sunny. Highs around 60. .THURSDAY NIGHT...Partly cloudy. Lows in the mid 40s. .FRIDAY...Mostly cloudy with a 30 percent chance of showers. Highs in the upper 60s. .FRIDAY NIGHT...Showers likely. Lows in the lower 50s. Chance of rain 70 percent. .SATURDAY...Showers likely. Highs in the upper 60s. Chance of rain 70 percent. .SATURDAY NIGHT...Showers likely. Lows in the mid 50s. Chance of rain 60 percent. .SUNDAY...Mostly cloudy with a 50 percent chance of showers. Highs in the lower 70s. $$ NYZ012-181800- Wyoming- Including the city of Warsaw 640 AM EDT Mon May 18 2026 .TODAY...Mostly sunny. Very warm with highs in the mid 80s. Southwest winds 5 to 10 mph, increasing to 10 to 15 mph. .TONIGHT...Mainly clear in the evening, then becoming partly cloudy. Warm with lows in the upper 60s. Southwest winds 10 mph or less. .TUESDAY...Becoming mostly sunny. Warm with highs in the mid 80s. Southwest winds 10 to 15 mph with gusts up to 30 mph. .TUESDAY NIGHT...Showers likely in the evening, then showers overnight. Cooler with lows in the upper 50s. Southwest winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 90 percent. .WEDNESDAY...Mostly cloudy with showers in the morning, then partly sunny with a chance of showers in the afternoon. Much cooler. Less humid with highs in the lower 60s. West winds 10 to 15 mph. Chance of rain 90 percent. .WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 30s. .THURSDAY...Mostly sunny. Highs in the mid 50s. .THURSDAY NIGHT...Partly cloudy. Lows in the lower 40s. .FRIDAY...Mostly cloudy with a 30 percent chance of showers. Highs in the mid 60s. .FRIDAY NIGHT...Showers likely. Lows in the upper 40s. Chance of rain 70 percent. .SATURDAY...Showers likely. Highs in the mid 60s. Chance of rain 70 percent. .SATURDAY NIGHT...Showers likely. Lows in the lower 50s. Chance of rain 60 percent. .SUNDAY...Mostly cloudy with a 50 percent chance of showers. Highs in the upper 60s. $$ NYZ019-181800- Chautauqua- Including the city of Jamestown 640 AM EDT Mon May 18 2026 .TODAY...Mostly sunny. Very warm with highs ranging from the lower 80s along the Lake Erie shore to the upper 80s inland. South winds 5 to 10 mph, becoming southwest 10 to 15 mph. .TONIGHT...Mainly clear in the evening, then becoming mostly cloudy. Warm with lows in the upper 60s. Southwest winds 10 mph or less. .TUESDAY...Partly sunny. A chance of showers and thunderstorms in the afternoon. Very warm with highs ranging from the lower 80s along the Lake Erie shore to the upper 80s inland. Southwest winds 5 to 10 mph, increasing to 10 to 15 mph with gusts up to 30 mph. Chance of rain 40 percent. .TUESDAY NIGHT...Showers with a chance of thunderstorms in the evening, then showers overnight. Cooler with lows in the mid 50s. Southwest winds 10 to 15 mph with gusts up to 30 mph in the evening. Chance of rain near 100 percent. .WEDNESDAY...Showers in the morning, then partly sunny with a chance of showers in the afternoon. Much cooler. Less humid with highs in the lower 60s. Northwest winds 5 to 10 mph. Chance of rain near 100 percent. .WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 40s. .THURSDAY...Mostly sunny. Highs around 60. .THURSDAY NIGHT...Partly cloudy. Lows in the mid 40s. .FRIDAY...Mostly cloudy with a 40 percent chance of showers. Highs in the upper 60s. .FRIDAY NIGHT...Showers likely. Lows in the lower 50s. Chance of rain 70 percent. .SATURDAY...Showers likely. Highs in the upper 60s. Chance of rain 70 percent. .SATURDAY NIGHT...Showers likely. Lows in the mid 50s. Chance of rain 70 percent. .SUNDAY...Partly sunny with a 50 percent chance of showers. Highs in the lower 70s. $$ NYZ020-181800- Cattaraugus- Including the city of Olean 640 AM EDT Mon May 18 2026 .TODAY...Mostly sunny. Very warm with highs in the mid 80s. Light winds, becoming southwest 5 to 10 mph. .TONIGHT...Mainly clear in the evening, then becoming partly cloudy. Warm with lows in the mid 60s. Southwest winds 10 mph or less. .TUESDAY...Partly sunny. A chance of showers and thunderstorms in the afternoon. Very warm with highs in the mid 80s. Southwest winds 10 mph or less, increasing to 10 to 15 mph with gusts up to 30 mph. Chance of rain 30 percent. .TUESDAY NIGHT...Showers likely with a chance of thunderstorms in the evening, then showers overnight. Cooler with lows in the mid 50s. Southwest winds 10 to 15 mph, diminishing to 5 to 10 mph. Chance of rain near 100 percent. .WEDNESDAY...Showers in the morning, then partly sunny with a chance of showers in the afternoon. Much cooler. Less humid with highs in the mid 60s. West winds 10 mph or less, becoming northwest. Chance of rain near 100 percent. .WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 30s. .THURSDAY...Mostly sunny. Highs around 60. .THURSDAY NIGHT...Partly cloudy. Lows in the lower 40s. .FRIDAY...Mostly cloudy with a 40 percent chance of showers. Highs in the mid 60s. .FRIDAY NIGHT...Showers likely. Lows in the upper 40s. Chance of rain 70 percent. .SATURDAY...Showers likely. Highs in the mid 60s. Chance of rain 70 percent. .SATURDAY NIGHT...Showers likely. Lows in the lower 50s. Chance of rain 70 percent. .SUNDAY...Partly sunny with a 50 percent chance of showers. Highs in the lower 70s. $$ NYZ021-181800- Allegany- Including the city of Wellsville 640 AM EDT Mon May 18 2026 .TODAY...Mostly sunny. Very warm with highs ranging from the lower 80s on the hilltops to the upper 80s across the lower elevations. Light winds, becoming southwest 10 to 15 mph. .TONIGHT...Mainly clear in the evening, then becoming partly cloudy. Warm with lows in the mid 60s. Southwest winds 5 to 10 mph, becoming light. .TUESDAY...Mostly sunny. Very warm with highs ranging from the lower 80s on the hilltops to the upper 80s across the lower elevations. Southwest winds 5 to 10 mph, increasing to 10 to 15 mph with gusts up to 30 mph. .TUESDAY NIGHT...Partly cloudy with a chance of showers in the evening, then showers likely overnight. Mild with lows in the upper 50s. Southwest winds 10 to 15 mph with gusts up to 30 mph in the evening. Chance of rain 70 percent. .WEDNESDAY...Mostly cloudy with showers likely in the morning, then partly sunny with a chance of showers in the afternoon. Much cooler with highs in the upper 60s. West winds 5 to 10 mph, becoming northwest. Chance of rain 70 percent. .WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 30s. .THURSDAY...Mostly sunny. Highs in the upper 50s. .THURSDAY NIGHT...Partly cloudy. Lows in the lower 40s. .FRIDAY...Mostly cloudy with a 40 percent chance of showers. Highs in the mid 60s. .FRIDAY NIGHT...Showers likely. Lows in the upper 40s. Chance of rain 70 percent. .SATURDAY...Showers likely. Highs in the mid 60s. Chance of rain 70 percent. .SATURDAY NIGHT...Showers likely. Lows in the lower 50s. Chance of rain 70 percent. .SUNDAY...Showers likely. Highs around 70. Chance of rain 60 percent. $$ NYZ013-181800- Livingston- Including the city of Geneseo 640 AM EDT Mon May 18 2026 .TODAY...Mostly sunny. Very warm with highs ranging from the mid 80s on the hilltops to around 90 across the lower elevations. South winds 5 to 10 mph, becoming southwest 10 to 15 mph. .TONIGHT...Mainly clear in the evening, then becoming partly cloudy. Warm with lows in the upper 60s. Southwest winds 10 mph or less. .TUESDAY...Becoming mostly sunny. Very warm with highs ranging from the mid 80s on the hilltops to the upper 80s across the lower elevations. Southwest winds 10 to 15 mph with gusts up to 30 mph. .TUESDAY NIGHT...Partly cloudy with a chance of showers in the evening, then showers likely overnight. Warm with lows around 60. Southwest winds 10 to 15 mph with gusts up to 30 mph in the evening. Chance of rain 60 percent. .WEDNESDAY...Mostly cloudy with showers likely in the morning, then partly sunny with a chance of showers in the afternoon. Much cooler with highs in the upper 60s. West winds 10 to 15 mph, becoming northwest. Chance of rain 60 percent. .WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 40s. .THURSDAY...Mostly sunny. Highs in the upper 50s. .THURSDAY NIGHT...Partly cloudy. Lows in the lower 40s. .FRIDAY...Mostly cloudy with a 30 percent chance of showers. Highs in the mid 60s. .FRIDAY NIGHT...Showers likely. Lows around 50. Chance of rain 70 percent. .SATURDAY...Showers likely. Highs in the upper 60s. Chance of rain 70 percent. .SATURDAY NIGHT...Showers likely. Lows in the lower 50s. Chance of rain 60 percent. .SUNDAY...Mostly cloudy with a 50 percent chance of showers. Highs in the lower 70s. $$ NYZ014-181800- Ontario- Including the city of Canandaigua 640 AM EDT Mon May 18 2026 .TODAY...Becoming mostly sunny. Hot with highs ranging from the mid 80s on the hilltops to around 90 across the lower elevations. Southwest winds 5 to 10 mph. .TONIGHT...Mainly clear in the evening, then becoming partly cloudy. Warm with lows in the upper 60s. Southwest winds 5 to 10 mph. .TUESDAY...Becoming mostly sunny. Very warm with highs ranging from the lower 80s on the hilltops to the upper 80s across the lower elevations. Southwest winds 10 to 15 mph with gusts up to 30 mph. .TUESDAY NIGHT...Partly cloudy with a chance of showers in the evening, then mostly cloudy with a chance of showers overnight. Mild with lows in the upper 50s. Southwest winds 10 to 15 mph with gusts up to 30 mph in the evening, becoming west. Chance of rain 50 percent. .WEDNESDAY...Mostly cloudy in the morning, then becoming partly sunny. A 50 percent chance of showers. Much cooler with highs ranging from the mid 60s on the hilltops to the upper 60s across the lower elevations. West winds 10 to 15 mph, becoming northwest. .WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 40s. .THURSDAY...Mostly sunny. Highs in the mid 50s. .THURSDAY NIGHT...Partly cloudy. Lows in the lower 40s. .FRIDAY...Partly sunny with a 30 percent chance of showers. Highs in the mid 60s. .FRIDAY NIGHT...Showers likely. Lows in the upper 40s. Chance of rain 60 percent. .SATURDAY...Showers likely. Highs in the mid 60s. Chance of rain 60 percent. .SATURDAY NIGHT...Showers likely. Lows in the lower 50s. Chance of rain 60 percent. .SUNDAY...Showers likely. Highs around 70. Chance of rain 60 percent. $$ NYZ003-181800- Monroe- Including the city of Rochester 640 AM EDT Mon May 18 2026 .TODAY...Becoming mostly sunny. Very warm with highs ranging from the mid 80s along the Lake Ontario shore to around 90 inland. Southwest winds 10 mph or less, increasing to 10 to 15 mph. .TONIGHT...Partly to mostly cloudy. Warm with lows in the upper 60s. Southwest winds 10 mph or less. .TUESDAY...Becoming mostly sunny. Very warm with highs ranging from the mid 80s along the Lake Ontario shore to the upper 80s inland. Southwest winds 5 to 10 mph, increasing to 10 to 15 mph with gusts up to 30 mph. .TUESDAY NIGHT...Showers likely with a chance of thunderstorms in the evening, then showers likely overnight. Cooler with lows in the mid 50s. Southwest winds 10 to 15 mph with gusts up to 30 mph, becoming west. Chance of rain 70 percent. .WEDNESDAY...Mostly cloudy with a chance of showers in the morning, then mostly sunny in the afternoon. Much cooler. Less humid with highs in the mid 60s. West winds 10 to 15 mph, becoming northwest. Chance of rain 50 percent. .WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 40s. .THURSDAY...Mostly sunny. Highs in the mid 50s. .THURSDAY NIGHT...Partly cloudy. Lows in the lower 40s. .FRIDAY...Mostly cloudy. Highs in the mid 60s. .FRIDAY NIGHT...Showers likely. Lows in the upper 40s. Chance of rain 60 percent. .SATURDAY...Showers likely. Highs in the upper 60s. Chance of rain 60 percent. .SATURDAY NIGHT...Mostly cloudy with a 50 percent chance of showers. Lows in the lower 50s. .SUNDAY...Mostly cloudy with a 50 percent chance of showers. Highs around 70. $$ NYZ004-181800- Wayne- Including the city of Newark 640 AM EDT Mon May 18 2026 .TODAY...Becoming mostly sunny. Very warm with highs ranging from the mid 80s along the Lake Ontario shore to the lower 90s inland. Southwest winds 10 mph or less. .TONIGHT...Partly cloudy with a chance of showers in the evening, then mostly cloudy overnight. Warm with lows ranging from the lower 60s along the Lake Ontario shore to the upper 60s inland. Light southwest winds. Chance of rain 30 percent. .TUESDAY...Partly sunny in the morning, then a chance of showers and thunderstorms in the afternoon. Very warm with highs ranging from the lower 80s along the Lake Ontario shore to the upper 80s inland. Light winds, becoming southwest 10 to 15 mph. Chance of rain 40 percent. .TUESDAY NIGHT...Showers likely with a chance of thunderstorms in the evening, then showers likely overnight. Cooler with lows ranging from the lower 50s along the Lake Ontario shore to the upper 50s inland. Southwest winds 5 to 10 mph, becoming west. Chance of rain 70 percent. .WEDNESDAY...Mostly cloudy with showers likely in the morning, then partly sunny with a chance of showers in the afternoon. Much cooler. Less humid with highs ranging from the lower 60s along the Lake Ontario shore to the mid 60s inland. West winds 5 to 10 mph, becoming northwest 10 to 15 mph. Chance of rain 70 percent. .WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 40s. .THURSDAY...Mostly sunny. Highs in the mid 50s. .THURSDAY NIGHT...Partly cloudy. Lows in the lower 40s. .FRIDAY...Partly sunny. Highs in the mid 60s. .FRIDAY NIGHT...Showers likely. Lows in the upper 40s. Chance of rain 60 percent. .SATURDAY...Showers likely. Highs in the mid 60s. Chance of rain 60 percent. .SATURDAY NIGHT...Showers likely. Lows in the lower 50s. Chance of rain 60 percent. .SUNDAY...Mostly cloudy with a chance of showers. Highs in the upper 60s. Chance of rain 50 percent. $$ NYZ005-181800- Northern Cayuga- Including the city of Fair Haven 640 AM EDT Mon May 18 2026 .TODAY...Mostly cloudy early, then clearing. Hot with highs ranging from the mid 80s along the Lake Ontario shore to around 90 inland. Southwest winds 10 mph or less. .TONIGHT...Partly cloudy with a chance of showers. Warm with lows ranging from the lower 60s along the Lake Ontario shore to the upper 60s inland. Light southwest winds. Chance of rain 30 percent. .TUESDAY...Partly sunny. A chance of showers and thunderstorms in the afternoon. Very warm with highs ranging from the lower 80s along the Lake Ontario shore to the upper 80s inland. Light winds, becoming southwest 5 to 10 mph. Chance of rain 40 percent. .TUESDAY NIGHT...Showers likely with a chance of thunderstorms in the evening, then showers overnight. Cooler with lows ranging from the lower 50s along the Lake Ontario shore to the upper 50s inland. Light winds. Chance of rain 80 percent. .WEDNESDAY...Mostly cloudy with showers in the morning, then partly sunny with a chance of showers in the afternoon. Much cooler. Less humid with highs ranging from around 60 along the Lake Ontario shore to the mid 60s inland. West winds 5 to 10 mph, increasing to 10 to 15 mph. Chance of rain 80 percent. .WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 40s. .THURSDAY...Mostly sunny. Highs in the mid 50s. .THURSDAY NIGHT...Mainly clear. Lows in the lower 40s. .FRIDAY...Partly sunny. Highs in the mid 60s. .FRIDAY NIGHT...Mostly cloudy with a 50 percent chance of showers. Lows in the upper 40s. .SATURDAY...Showers likely. Highs in the mid 60s. Chance of rain 60 percent. .SATURDAY NIGHT...Showers likely. Lows in the lower 50s. Chance of rain 60 percent. .SUNDAY...Mostly cloudy with a chance of showers. Highs in the upper 60s. Chance of rain 50 percent. $$ NYZ006-181800- Oswego- Including the city of Oswego 640 AM EDT Mon May 18 2026 .TODAY...Mostly cloudy early, then becoming mostly sunny. Very warm with highs ranging from the lower 80s along the Lake Ontario shore to the upper 80s inland. Southwest winds 10 mph or less. .TONIGHT...Partly to mostly cloudy. A 50 percent chance of showers and thunderstorms. Warm with lows in the mid 60s. Light south winds. .TUESDAY...Partly sunny. A chance of showers in the morning, then a chance of showers and thunderstorms in the afternoon. Warm with highs ranging from the lower 80s on the Tug Hill to the mid 80s across the lower elevations. Light winds, becoming southwest 5 to 10 mph. Chance of rain 50 percent. .TUESDAY NIGHT...Showers with a chance of thunderstorms. Cooler with lows ranging from the lower 50s along the Lake Ontario shore to the mid 50s across the Tug Hill. Light winds. Chance of rain near 100 percent. .WEDNESDAY...Showers in the morning, then partly sunny with a chance of showers in the afternoon. Much cooler. Less humid with highs in the lower 60s. West winds 5 to 10 mph, increasing to 10 to 15 mph. Chance of rain near 100 percent. .WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 40s. .THURSDAY...Mostly sunny. Highs in the upper 50s. .THURSDAY NIGHT...Mainly clear. Lows in the lower 40s. .FRIDAY...Partly sunny. Highs in the mid 60s. .FRIDAY NIGHT...Mostly cloudy with a 50 percent chance of showers. Lows in the upper 40s. .SATURDAY...Showers likely. Highs in the mid 60s. Chance of rain 60 percent. .SATURDAY NIGHT...Showers likely. Lows in the upper 40s. Chance of rain 60 percent. .SUNDAY...Mostly cloudy with a chance of showers. Highs in the upper 60s. Chance of rain 50 percent. $$ NYZ007-181800- Jefferson- Including the city of Watertown 640 AM EDT Mon May 18 2026 .TODAY...Cloudy with a chance of showers early, then mostly sunny from late morning on. Warm with highs ranging from the upper 70s along the Lake Ontario shore to the mid 80s inland. Southeast winds 5 to 10 mph, becoming southwest 10 to 15 mph. Chance of rain 30 percent. .TONIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A 50 percent chance of showers and thunderstorms. Warm with lows ranging from the lower 60s along the Lake Ontario shore to the mid 60s across the Tug Hill. Southwest winds 10 mph or less. .TUESDAY...Partly sunny with a chance of showers in the morning, then partly sunny with a chance of showers and thunderstorms in the afternoon. Warm with highs ranging from the mid 70s along the Lake Ontario shore to the lower 80s inland. Southwest winds 5 to 10 mph, increasing to 10 to 15 mph with gusts up to 30 mph. Chance of rain 40 percent. .TUESDAY NIGHT...Showers with a chance of thunderstorms. Mild with lows in the mid 50s. Southwest winds 10 to 15 mph. Chance of rain near 100 percent. .WEDNESDAY...Showers in the morning, then partly sunny with a chance of showers in the afternoon. Breezy and much cooler with highs ranging from around 60 on the Tug Hill to the mid 60s across the lower elevations. Southwest winds 10 to 15 mph. Chance of rain near 100 percent. .WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 40s. .THURSDAY...Sunny. Highs in the upper 50s. .THURSDAY NIGHT...Mainly clear. Lows in the lower 40s. .FRIDAY...Partly sunny. Highs in the mid 60s. .FRIDAY NIGHT...Mostly cloudy with a 50 percent chance of showers. Lows in the upper 40s. .SATURDAY...Mostly cloudy with a 50 percent chance of showers. Highs in the mid 60s. .SATURDAY NIGHT...Mostly cloudy with a 50 percent chance of showers. Lows in the upper 40s. .SUNDAY...Mostly cloudy with a 50 percent chance of showers. Highs in the upper 60s. $$ NYZ008-181800- Lewis- Including the city of Lowville 640 AM EDT Mon May 18 2026 .TODAY...Cloudy with a chance of showers early, then mostly sunny from late morning on. Warm with highs ranging from the lower 80s on the hilltops to the mid 80s across the lower elevations. Light winds, becoming southwest 10 to 15 mph. Chance of rain 30 percent. .TONIGHT...Partly to mostly cloudy. A 50 percent chance of showers and thunderstorms. Warmer with lows in the mid 60s. Light south winds. .TUESDAY...Partly sunny. A chance of showers in the morning, then a chance of showers and thunderstorms in the afternoon. Warm with highs ranging from the upper 70s on the hilltops to the mid 80s across the lower elevations. Southwest winds 5 to 10 mph, increasing to 10 to 15 mph with gusts up to 30 mph. Chance of rain 50 percent. .TUESDAY NIGHT...Showers with a chance of thunderstorms. Mild with lows in the mid 50s. Southwest winds 5 to 10 mph. Chance of rain near 100 percent. .WEDNESDAY...Showers in the morning, then partly sunny with a chance of showers in the afternoon. Much cooler. Less humid with highs ranging from the lower 60s on the hilltops to the upper 60s across the lower elevations. West winds 5 to 10 mph, increasing to 10 to 15 mph. Chance of rain near 100 percent. .WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 30s. .THURSDAY...Mostly sunny. Highs in the upper 50s. .THURSDAY NIGHT...Mainly clear. Lows in the upper 30s. .FRIDAY...Partly sunny. Highs in the mid 60s. .FRIDAY NIGHT...Mostly cloudy with a 50 percent chance of showers. Lows in the mid 40s. .SATURDAY...Showers likely. Highs in the lower 60s. Chance of rain 60 percent. .SATURDAY NIGHT...Mostly cloudy with a 50 percent chance of showers. Lows in the upper 40s. .SUNDAY...Mostly cloudy with a chance of showers. Highs in the mid 60s. Chance of rain 50 percent. $$