FPUS53 KLSX 151418 ZFPLSX Zone Forecasts National Weather Service Saint Louis MO 918 AM CDT Thu Oct 15 2026 ILZ100-101-MOZ061-063-064-152200- Madison IL-Saint Clair IL-Saint Charles MO-Saint Louis MO- Saint Louis City MO- Including the cities of Alton, Edwardsville, Belleville, Cahokia, Saint Charles, and Saint Louis 918 AM CDT Thu Oct 15 2026 .REST OF TODAY...Mostly cloudy late this morning, then becoming partly sunny. Patchy fog late this morning. Showers likely with a chance of thunderstorms. Highs in the lower 80s. Southeast winds 5 to 10 mph, becoming south with gusts up to 20 mph this afternoon. Chance of rain 70 percent. .TONIGHT...A chance of thunderstorms in the evening. Numerous showers. Much cooler with lows in the upper 40s. West winds 10 to 15 mph, becoming northwest 15 to 20 mph after midnight. Chance of rain 70 percent. .FRIDAY...Partly sunny. Much cooler. Less humid with highs in the upper 50s. Northwest winds 15 to 20 mph with gusts up to 30 mph. .FRIDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Lows in the upper 30s. North winds 15 to 20 mph. .SATURDAY...Sunny. Highs around 60. North winds 5 to 10 mph. .SATURDAY NIGHT AND SUNDAY...Clear. Lows in the upper 30s. Highs in the upper 60s. .SUNDAY NIGHT...Mostly clear. Lows around 40. .MONDAY AND MONDAY NIGHT...Partly cloudy. Highs in the lower 70s. Lows in the lower 40s. .TUESDAY THROUGH WEDNESDAY...Mostly clear. Highs in the mid 70s. Lows in the mid 40s. $$ MOZ042-049-050-152200- Audrain MO-Osage MO-Callaway MO- Including the cities of Mexico and Fulton 918 AM CDT Thu Oct 15 2026 .REST OF TODAY...Patchy fog late this morning. Mostly cloudy with a chance of thunderstorms. Showers late this morning, then a chance of showers this afternoon. Highs in the upper 70s. Southeast winds 5 to 10 mph, becoming southwest 10 to 15 mph with gusts up to 25 mph this afternoon. Chance of rain 90 percent. .TONIGHT...Mostly cloudy. Scattered showers with isolated thunderstorms in the evening. Much cooler. Less humid with lows in the mid 40s. Northwest winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 50 percent. .FRIDAY...Partly sunny in the morning, then becoming mostly cloudy. Much cooler with highs in the mid 50s. Northwest winds 15 to 20 mph with gusts up to 35 mph. .FRIDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Lows in the mid 30s. North winds 15 to 20 mph with gusts up to 30 mph, diminishing to 5 to 10 mph after midnight. .SATURDAY...Sunny. Highs in the upper 50s. Northeast winds around 5 mph, becoming east in the afternoon. .SATURDAY NIGHT AND SUNDAY...Clear. Lows in the mid 30s. Highs in the upper 60s. .SUNDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 30s. .MONDAY AND MONDAY NIGHT...Partly cloudy. Highs in the lower 70s. Lows in the lower 40s. .TUESDAY THROUGH WEDNESDAY...Mostly clear. Highs in the mid 70s. Lows in the mid 40s. $$ MOZ041-047-048-152200- Boone MO-Moniteau MO-Cole MO- Including the cities of Columbia and Jefferson City 918 AM CDT Thu Oct 15 2026 .REST OF TODAY...Mostly cloudy. Patchy fog late this morning. Showers likely with a chance of thunderstorms late this morning, then a chance of showers with a slight chance of thunderstorms this afternoon. Highs in the upper 70s. South winds 5 to 10 mph, becoming southwest 10 to 15 mph with gusts up to 25 mph this afternoon. Chance of rain 70 percent. .TONIGHT...Mostly cloudy. Scattered showers with isolated thunderstorms in the evening. Much cooler. Less humid with lows in the mid 40s. Northwest winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 50 percent. .FRIDAY...Partly sunny in the morning, then becoming mostly cloudy. Much cooler with highs in the mid 50s. Northwest winds 15 to 20 mph with gusts up to 30 mph. .FRIDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Lows in the upper 30s. North winds 10 to 15 mph with gusts up to 30 mph, diminishing to around 5 mph after midnight. .SATURDAY...Sunny. Highs around 60. Northeast winds around 5 mph in the morning, becoming light and variable. .SATURDAY NIGHT AND SUNDAY...Clear. Lows in the upper 30s. Highs in the upper 60s. .SUNDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 40s. .MONDAY AND MONDAY NIGHT...Partly cloudy. Highs in the lower 70s. Lows in the mid 40s. .TUESDAY THROUGH WEDNESDAY...Mostly clear. Highs in the upper 70s. Lows in the upper 40s. $$ ILZ095>097-MOZ018-019-026-027-034>036-152200- Adams IL-Brown IL-Pike IL-Knox MO-Lewis MO-Shelby MO-Marion MO- Monroe MO-Ralls MO-Pike MO- Including the cities of Quincy, Mount Sterling, Pittsfield, Hannibal, and Bowling Green 918 AM CDT Thu Oct 15 2026 .REST OF TODAY...Patchy fog late this morning. A slight chance of thunderstorms. Showers. Highs in the mid 70s. Southeast winds 5 to 10 mph, becoming southwest 10 to 15 mph with gusts up to 25 mph this afternoon. Chance of rain 90 percent. .TONIGHT...Mostly cloudy. Scattered showers with isolated thunderstorms in the evening. Much cooler. Less humid with lows in the mid 40s. Northwest winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 50 percent. .FRIDAY...Partly sunny in the morning, then mostly cloudy with isolated showers in the afternoon. Much cooler with highs in the mid 50s. Northwest winds 15 to 20 mph with gusts up to 35 mph. Chance of rain 20 percent. .FRIDAY NIGHT...Mostly cloudy in the evening, then clearing. Lows in the mid 30s. North winds 15 to 20 mph with gusts up to 30 mph, diminishing to 5 to 10 mph with gusts up to 20 mph after midnight. .SATURDAY...Sunny. Highs in the upper 50s. Northeast winds around 5 mph in the morning, becoming light and variable. .SATURDAY NIGHT AND SUNDAY...Clear. Lows in the upper 30s. Highs in the upper 60s. .SUNDAY NIGHT...Mostly clear. Lows in the lower 40s. .MONDAY AND MONDAY NIGHT...Partly cloudy. Highs in the lower 70s. Lows in the mid 40s. .TUESDAY THROUGH WEDNESDAY...Mostly clear. Highs in the mid 70s. Lows in the upper 40s. $$ ILZ069-070-074-152200- Clinton IL-Marion IL-Washington IL- Including the cities of Centralia and Salem 918 AM CDT Thu Oct 15 2026 .REST OF TODAY...Mostly cloudy late this morning, then becoming partly sunny. Showers likely with a chance of thunderstorms. Highs in the mid 80s. Southeast winds 5 to 10 mph, becoming south 10 to 15 mph this afternoon. Chance of rain 70 percent. .TONIGHT...Partly cloudy with numerous showers with a chance of thunderstorms in the evening, then mostly cloudy with scattered showers after midnight. Much cooler with lows in the upper 40s. Southwest winds 10 to 15 mph, becoming northwest 15 to 20 mph with gusts up to 30 mph after midnight. Chance of rain 70 percent. .FRIDAY...Partly sunny and breezy. Much cooler. Less humid with highs in the upper 50s. Northwest winds 15 to 25 mph. .FRIDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Lows in the upper 30s. North winds 15 to 20 mph. .SATURDAY...Sunny. Highs around 60. North winds 5 to 10 mph. .SATURDAY NIGHT AND SUNDAY...Clear. Lows in the mid 30s. Highs in the upper 60s. .SUNDAY NIGHT...Mostly clear. Lows in the upper 30s. .MONDAY AND MONDAY NIGHT...Partly cloudy. Highs in the lower 70s. Lows in the lower 40s. .TUESDAY THROUGH WEDNESDAY...Mostly clear. Highs in the mid 70s. Lows in the mid 40s. $$ MOZ074-084-085-099-152200- Saint Francois MO-Iron MO-Madison MO-Reynolds MO- Including the city of Farmington 918 AM CDT Thu Oct 15 2026 .REST OF TODAY...Partly sunny with a chance of showers and thunderstorms. Highs in the mid 80s. South winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 50 percent. .TONIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A chance of thunderstorms in the evening. Scattered showers. Much cooler. Less humid with lows in the mid 40s. West winds 5 to 10 mph, becoming northwest 10 to 15 mph after midnight. Gusts up to 30 mph. Chance of rain 50 percent. .FRIDAY...Partly sunny. Much cooler. Less humid with highs in the upper 50s. Northwest winds 10 to 15 mph with gusts up to 30 mph. .FRIDAY NIGHT...Mostly cloudy. Lows in the upper 30s. North winds 10 to 15 mph with gusts up to 30 mph. .SATURDAY...Sunny. Highs in the lower 60s. North winds 5 to 10 mph. .SATURDAY NIGHT AND SUNDAY...Clear. Lows in the mid 30s. Highs in the mid 60s. .SUNDAY NIGHT AND MONDAY...Mostly clear. Lows in the upper 30s. Highs in the lower 70s. .MONDAY NIGHT...Partly cloudy. Lows around 40. .TUESDAY THROUGH WEDNESDAY...Mostly clear. Highs in the upper 70s. Lows in the mid 40s. $$ MOZ051-052-060-152200- Montgomery MO-Lincoln MO-Warren MO- 918 AM CDT Thu Oct 15 2026 .REST OF TODAY...Patchy fog late this morning. Mostly cloudy with a chance of thunderstorms. Showers late this morning, then a chance of showers this afternoon. Highs in the upper 70s. Southeast winds around 5 mph, becoming southwest with gusts up to 20 mph this afternoon. Chance of rain 90 percent. .TONIGHT...Mostly cloudy. Numerous showers with isolated thunderstorms in the evening. Much cooler. Less humid with lows in the mid 40s. Northwest winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 70 percent. .FRIDAY...Partly sunny in the morning, then becoming mostly cloudy. Much cooler with highs in the mid 50s. Northwest winds 15 to 20 mph with gusts up to 35 mph. .FRIDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Lows in the mid 30s. Northwest winds 15 to 20 mph with gusts up to 30 mph, becoming north 5 to 10 mph with gusts up to 20 mph after midnight. .SATURDAY...Sunny. Highs in the upper 50s. Northeast winds around 5 mph. .SATURDAY NIGHT AND SUNDAY...Clear. Lows in the mid 30s. Highs in the upper 60s. .SUNDAY NIGHT...Mostly clear. Lows in the upper 30s. .MONDAY AND MONDAY NIGHT...Partly cloudy. Highs in the lower 70s. Lows in the lower 40s. .TUESDAY THROUGH WEDNESDAY...Mostly clear. Highs in the mid 70s. Lows in the mid 40s. $$ ILZ058-059-098-099-152200- Greene IL-Macoupin IL-Calhoun IL-Jersey IL- 918 AM CDT Thu Oct 15 2026 .REST OF TODAY...Patchy fog late this morning. A chance of thunderstorms. Showers. Highs in the upper 70s. Southeast winds 5 to 10 mph, becoming south with gusts up to 20 mph this afternoon. Chance of rain 90 percent. .TONIGHT...Mostly cloudy. Numerous showers with a chance of thunderstorms in the evening, then scattered showers after midnight. Much cooler. Less humid with lows in the mid 40s. West winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 70 percent. .FRIDAY...Partly sunny. Isolated showers in the afternoon. Much cooler with highs in the mid 50s. Northwest winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 20 percent. .FRIDAY NIGHT...Mostly cloudy in the evening, then clearing. Lows in the mid 30s. Northwest winds 15 to 20 mph with gusts up to 30 mph, becoming north 5 to 10 mph with gusts up to 20 mph after midnight. .SATURDAY...Sunny. Highs around 60. Northeast winds around 5 mph. .SATURDAY NIGHT AND SUNDAY...Clear. Lows in the mid 30s. Highs in the upper 60s. .SUNDAY NIGHT...Mostly clear. Lows in the upper 30s. .MONDAY AND MONDAY NIGHT...Partly cloudy. Highs in the lower 70s. Lows around 40. .TUESDAY THROUGH WEDNESDAY...Mostly clear. Highs in the mid 70s. Lows in the mid 40s. $$ ILZ060-064-065-152200- Montgomery IL-Bond IL-Fayette IL- Including the cities of Litchfield and Vandalia 918 AM CDT Thu Oct 15 2026 .REST OF TODAY...A chance of thunderstorms. Showers. Highs in the upper 70s. Southeast winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 90 percent. .TONIGHT...A chance of thunderstorms in the evening. Numerous showers. Much cooler with lows in the mid 40s. Southwest winds 10 to 15 mph, becoming northwest after midnight. Chance of rain 70 percent. .FRIDAY...Partly sunny. Isolated showers in the afternoon. Much cooler. Less humid with highs in the mid 50s. Northwest winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 20 percent. .FRIDAY NIGHT...Mostly cloudy in the evening, then clearing. Cooler with lows in the mid 30s. Northwest winds 15 to 20 mph, becoming north 5 to 10 mph after midnight. .SATURDAY...Sunny. Highs around 60. North winds 5 to 10 mph. .SATURDAY NIGHT AND SUNDAY...Clear. Lows in the mid 30s. Highs in the upper 60s. .SUNDAY NIGHT...Mostly clear. Lows in the upper 30s. .MONDAY THROUGH TUESDAY...Partly cloudy. Highs in the mid 70s. Lows around 40. .TUESDAY NIGHT AND WEDNESDAY...Mostly clear. Lows in the lower 40s. Highs in the mid 70s. $$ ILZ079-MOZ075-152200- Randolph IL-Sainte Genevieve MO- Including the cities of Chester and Sparta 918 AM CDT Thu Oct 15 2026 .REST OF TODAY...Partly sunny with a chance of showers and thunderstorms. Highs in the mid 80s. South winds 10 to 15 mph. Chance of rain 50 percent. .TONIGHT...A chance of thunderstorms in the evening. Numerous showers. Much cooler with lows in the upper 40s. Southwest winds 10 to 15 mph, becoming northwest with gusts up to 30 mph after midnight. Chance of rain 70 percent. .FRIDAY...Partly sunny. Much cooler. Less humid with highs in the upper 50s. Northwest winds 15 to 20 mph with gusts up to 30 mph. .FRIDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Lows in the upper 30s. North winds 10 to 15 mph with gusts up to 25 mph. .SATURDAY...Sunny. Highs around 60. North winds 5 to 10 mph. .SATURDAY NIGHT AND SUNDAY...Clear. Lows in the mid 30s. Highs in the upper 60s. .SUNDAY NIGHT...Mostly clear. Lows in the upper 30s. .MONDAY AND MONDAY NIGHT...Partly cloudy. Highs in the lower 70s. Lows in the lower 40s. .TUESDAY THROUGH WEDNESDAY...Mostly clear. Highs in the upper 70s. Lows in the mid 40s. $$ MOZ059-062-072-073-152200- Gasconade MO-Franklin MO-Crawford MO-Washington MO- Including the cities of Washington, Union, and Sullivan 918 AM CDT Thu Oct 15 2026 .REST OF TODAY...Partly sunny with a chance of thunderstorms. Showers late this morning, then a chance of showers this afternoon. Highs around 80. Southwest winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 90 percent. .TONIGHT...Numerous showers with isolated thunderstorms in the evening, then scattered showers after midnight. Much cooler. Less humid with lows in the mid 40s. West winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 70 percent. .FRIDAY...Partly sunny in the morning, then becoming mostly cloudy. Much cooler. Less humid with highs in the mid 50s. Northwest winds 10 to 15 mph with gusts up to 30 mph. .FRIDAY NIGHT...Mostly cloudy. Lows in the upper 30s. North winds 10 to 15 mph. Gusts up to 30 mph in the evening. .SATURDAY...Sunny. Highs around 60. Northeast winds around 5 mph. .SATURDAY NIGHT AND SUNDAY...Clear. Lows in the mid 30s. Highs in the mid 60s. .SUNDAY NIGHT...Mostly clear. Lows in the upper 30s. .MONDAY AND MONDAY NIGHT...Partly cloudy. Highs in the lower 70s. Lows around 40. .TUESDAY THROUGH WEDNESDAY...Mostly clear. Highs in the mid 70s. Lows in the mid 40s. $$ ILZ102-MOZ065-152200- Monroe IL-Jefferson MO- 918 AM CDT Thu Oct 15 2026 .REST OF TODAY...Partly sunny with a chance of thunderstorms. Showers likely late this morning, then a chance of showers this afternoon. Highs in the lower 80s. South winds 5 to 10mph with gusts up to 20 mph. Chance of rain 70 percent. .TONIGHT...Partly cloudy with scattered showers with a chance of thunderstorms in the evening, then mostly cloudy with numerous showers after midnight. Much cooler. Less humid with lows in the mid 40s. West winds 10 to 15 mph, becoming northwest after midnight. Gusts up to 30 mph. Chance of rain 70 percent. .FRIDAY...Partly sunny in the morning, then becoming mostly cloudy. Much cooler. Less humid with highs in the upper 50s. Northwest winds 15 to 20 mph with gusts up to 30 mph. .FRIDAY NIGHT...Mostly cloudy. Lows in the upper 30s. North winds 10 to 15 mph. Gusts up to 30 mph in the evening. .SATURDAY...Sunny. Highs around 60. North winds 5 to 10 mph. .SATURDAY NIGHT AND SUNDAY...Clear. Lows in the mid 30s. Highs in the upper 60s. .SUNDAY NIGHT...Mostly clear. Lows in the upper 30s. .MONDAY AND MONDAY NIGHT...Partly cloudy. Highs in the lower 70s. Lows around 40. .TUESDAY THROUGH WEDNESDAY...Mostly clear. Highs in the mid 70s. Lows in the lower 40s. $$