FNUS55 KGGW 190708 FWFGGW Fire Weather Planning Forecast for Northeast Montana National Weather Service Glasgow MT 108 AM MDT Tue May 19 2026 .DISCUSSION...High pressure over the area will move to the east today. A cold front approaching from the west will bring a slight chance of showers and thunderstorms in the late afternoon and early evening to parts of Phillips and Petroleum Counties. The front will move through northeast Montana during the day on Wednesday with showers and thunderstorms at times that will continue into Wednesday night. A low pressure system on Thursday will bring chances for showers and thunderstorms. MTZ134-192245- Northern Valley and Northern Phillips Counties- 108 AM MDT Tue May 19 2026 .TODAY... Sky/weather.........Partly cloudy (30-40 percent). Chance of thunder...0 percent. Max temperature.....61-66. Min humidity........28-33 percent. 20-foot winds.......South winds 10 to 20 mph. CWR (> 0.10 inch)...Zero. .TONIGHT... Sky/weather.........Mostly cloudy (50-60 percent). A slight chance of showers in the evening. Chance of thunder...0 percent. Min temperature.....37-42. Max humidity........77-82 percent. 20-foot winds.......South winds 5 to 10 mph. CWR (> 0.10 inch)...Zero. .WEDNESDAY... Sky/weather.........A slight chance of showers in the morning, then a chance of showers and a slight chance of thunderstorms in the afternoon. Chance of thunder...20 percent. Max temperature.....63-68. Min humidity........39-44 percent. 20-foot winds.......Southwest winds 5 to 15 mph becoming northwest 10 to 15 mph in the afternoon. CWR (> 0.10 inch)...30 percent. .Forecast days 3 through 7...... .THURSDAY...Mostly cloudy. A slight chance of showers. Lows in the upper 30s. Highs in the mid 60s. Northwest winds 5 to 15 mph. .FRIDAY...Partly cloudy. Lows in the upper 30s. Highs around 70. Northwest winds 10 to 15 mph. .SATURDAY...Partly cloudy. Lows in the lower 40s. Highs in the upper 70s. Southeast winds 10 to 15 mph. .SUNDAY...Partly cloudy. Lows in the upper 40s. Highs in the upper 70s. .MEMORIAL DAY...Partly cloudy. Lows in the upper 40s. Highs in the lower 80s. $$ MTZ135-192245- The Little Rockies- 108 AM MDT Tue May 19 2026 .TODAY... Sky/weather.........Partly cloudy (40-50 percent). Chance of thunder...0 percent. Max temperature.....65-70 valleys and 55-60 ridges. Min humidity........28-33 percent. 20-foot winds....... Lower elevation......Upslope/upvalley 2-5 mph becoming upslope/upvalley 4-8 mph in the afternoon. Ridge............Southwest winds 5 to 15 mph becoming west 5 to 10 mph late in the afternoon. CWR (> 0.10 inch)...Zero. .TONIGHT... Sky/weather.........Mostly cloudy (65-75 percent) then becoming partly cloudy (45-55 percent). A slight chance of showers and thunderstorms in the evening. Chance of thunder...20 percent. Min temperature.....43-48 valleys and 37-42 ridges. Max humidity........67-72 percent. 20-foot winds....... Lower elevation......West winds 5 to 10 mph. Ridge............West winds 5 to 10 mph. CWR (> 0.10 inch)...Zero. .WEDNESDAY... Sky/weather.........A slight chance of showers in the morning, then showers likely and a chance of thunderstorms in the afternoon. Chance of thunder...50 percent. Max temperature.....64-69 valleys and 53-58 ridges. Min humidity........36-41 percent valleys and 46-51 percent ridges. 20-foot winds....... Lower elevation......Upslope/upvalley 2-5 mph. Ridge............Northwest winds 10 to 15 mph. CWR (> 0.10 inch)...20 percent. .Forecast days 3 through 7...... .THURSDAY...Mostly cloudy. A slight chance of showers. Lows in the lower 40s. Highs in the lower 60s. Northwest winds 5 to 15 mph. .FRIDAY...Partly cloudy. Lows in the lower 40s. Highs in the upper 60s. West winds 10 to 15 mph. .SATURDAY...Partly cloudy. Lows in the upper 40s. Highs in the mid 70s. South winds 5 to 10 mph. .SUNDAY...Partly cloudy. Lows in the lower 50s. Highs in the mid 70s. .MEMORIAL DAY...Partly cloudy. Lows in the mid 50s. Highs in the upper 70s. $$ MTZ136-192245- The Lower Missouri River Breaks including the Charles M Russell National Wildlife Refuge- 108 AM MDT Tue May 19 2026 .TODAY... Sky/weather.........Partly cloudy (30-40 percent). Chance of thunder...0 percent. Max temperature.....64-69. Min humidity........26-31 percent. 20-foot winds....... Lower elevation......South winds 5 to 15 mph. Ridge............South winds 5 to 15 mph. CWR (> 0.10 inch)...Zero. .TONIGHT... Sky/weather.........Mostly cloudy (50-60 percent). Chance of thunder...0 percent. Min temperature.....40-45. Max humidity........64-69 percent. 20-foot winds....... Lower elevation......Southwest winds 5 to 10 mph. Ridge............Southwest winds 5 to 10 mph. CWR (> 0.10 inch)...Zero. .WEDNESDAY... Sky/weather.........Mostly cloudy (65-75 percent). A chance of showers and a slight chance of thunderstorms in the afternoon. Chance of thunder...20 percent. Max temperature.....65-70. Min humidity........35-40 percent. 20-foot winds....... Lower elevation......West winds 5 to 15 mph. Ridge............West winds 5 to 15 mph. CWR (> 0.10 inch)...20 percent. .Forecast days 3 through 7...... .THURSDAY...Mostly cloudy. A chance of showers. Lows in the lower 40s. Highs in the mid 60s. Northwest winds 5 to 15 mph. .FRIDAY...Partly cloudy. Lows in the lower 40s. Highs around 70. West winds 10 to 15 mph. .SATURDAY...Partly cloudy. Lows in the mid 40s. Highs in the upper 70s. South winds 5 to 10 mph. .SUNDAY...Partly cloudy. Lows in the lower 50s. Highs around 80. .MEMORIAL DAY...Partly cloudy. Lows in the lower 50s. Highs in the lower 80s. $$ MTZ137-192245- Southern Petroleum and Southern Garfield Counties- 108 AM MDT Tue May 19 2026 .TODAY... Sky/weather.........Partly cloudy (30-40 percent). Chance of thunder...0 percent. Max temperature.....63-68. Min humidity........24-29 percent. 20-foot winds....... Lower elevation......Southwest winds 5 to 15 mph. Ridge............Southwest winds 5 to 15 mph until late afternoon. CWR (> 0.10 inch)...Zero. .TONIGHT... Sky/weather.........Mostly cloudy (50-60 percent). Chance of thunder...0 percent. Min temperature.....38-43. Max humidity........62-67 percent. 20-foot winds....... Lower elevation......Southwest winds 5 to 10 mph. Ridge............Southwest winds 5 to 10 mph. CWR (> 0.10 inch)...Zero. .WEDNESDAY... Sky/weather.........Mostly cloudy (70-80 percent). A chance of showers and a slight chance of thunderstorms in the afternoon. Chance of thunder...20 percent. Max temperature.....65-70. Min humidity........31-36 percent. 20-foot winds....... Lower elevation......Upslope/upvalley 5-10 mph. Ridge............West winds 5 to 15 mph. CWR (> 0.10 inch)...10 percent. .Forecast days 3 through 7...... .THURSDAY...Mostly cloudy. A chance of showers. Lows in the lower 40s. Highs in the lower 60s. Northwest winds 5 to 15 mph. .FRIDAY...Partly cloudy. Lows in the upper 30s. Highs around 70. West winds 5 to 10 mph. .SATURDAY...Partly cloudy. Lows in the lower 40s. Highs in the upper 70s. South winds 5 to 10 mph. .SUNDAY...Partly cloudy. Lows in the upper 40s. Highs around 80. .MEMORIAL DAY...Partly cloudy. Lows in the upper 40s. Highs in the lower 80s. $$ MTZ120-192245- Fort Peck Reservation and Daniels/Roosevelt/Sheridan Counties- 108 AM MDT Tue May 19 2026 .TODAY... Sky/weather.........Mostly cloudy (45-55 percent) then becoming sunny (15-25 percent). Chance of thunder...0 percent. Max temperature.....60-65. Min humidity........25-30 percent. 20-foot winds.......Southwest winds 10 to 15 mph. CWR (> 0.10 inch)...Zero. .TONIGHT... Sky/weather.........Mostly cloudy (50-60 percent). Chance of thunder...0 percent. Min temperature.....37-42. Max humidity........57-62 percent. 20-foot winds.......Southeast winds 5 to 15 mph. CWR (> 0.10 inch)...Zero. .WEDNESDAY... Sky/weather.........Mostly cloudy (55-65 percent). A chance of showers and a slight chance of thunderstorms in the afternoon. Chance of thunder...20 percent. Max temperature.....67-72. Min humidity........34-39 percent. 20-foot winds.......South winds 5 to 15 mph becoming southwest 10 to 15 mph in the afternoon. CWR (> 0.10 inch)...10 percent. .Forecast days 3 through 7...... .THURSDAY...Mostly cloudy. A chance of showers and a slight chance of thunderstorms. Lows around 40. Highs in the mid 60s. Northwest winds 5 to 10 mph. .FRIDAY...Mostly cloudy. A slight chance of showers and thunderstorms. Lows around 40. Highs in the upper 60s. Northwest winds 10 to 15 mph. .SATURDAY...Partly cloudy. Lows in the lower 40s. Highs in the upper 70s. Southeast winds 10 to 15 mph. .SUNDAY...Partly cloudy. Lows in the upper 40s. Highs around 80. .MEMORIAL DAY...Partly cloudy. Lows in the upper 40s. Highs in the mid 80s. $$ MTZ122-192245- Dawson/McCone/Prairie/Richland/Wibaux Counties- 108 AM MDT Tue May 19 2026 .TODAY... Sky/weather.........Sunny (15-25 percent) then becoming partly cloudy (20-30 percent). Chance of thunder...0 percent. Max temperature.....60-65. Min humidity........21-26 percent. 20-foot winds.......Southwest winds 5 to 10 mph. CWR (> 0.10 inch)...Zero. .TONIGHT... Sky/weather.........Mostly cloudy (45-55 percent). Chance of thunder...0 percent. Min temperature.....39-44. Max humidity........49-54 percent. 20-foot winds.......South winds 5 to 15 mph. CWR (> 0.10 inch)...Zero. .WEDNESDAY... Sky/weather.........Mostly cloudy (55-65 percent). A chance of showers and a slight chance of thunderstorms in the afternoon. Chance of thunder...20 percent. Max temperature.....70-75. Min humidity........25-30 percent. 20-foot winds.......Southwest winds 5 to 15 mph becoming west 10 to 15 mph late in the afternoon. CWR (> 0.10 inch)...Zero. .Forecast days 3 through 7...... .THURSDAY...Mostly cloudy. A chance of showers. Lows in the lower 40s. Highs in the mid 60s. Northwest winds 10 to 15 mph. .FRIDAY...Mostly cloudy. A slight chance of showers. Lows around 40. Highs in the upper 60s. Northwest winds 10 to 15 mph. .SATURDAY...Partly cloudy. Lows in the lower 40s. Highs in the upper 70s. South winds 5 to 10 mph. .SUNDAY...Partly cloudy. Lows in the upper 40s. Highs in the lower 80s. .MEMORIAL DAY...Partly cloudy. Lows in the lower 50s. Highs in the mid 80s. $$ weather.gov/glasgow