10-Day Weather Forecast - Lewistown, MT
- 48|25°F70% Chance of RainHourly details
Today
48°FStrong winds. Cloudy. Patchy blowing dust early in the morning. Patchy blowing dust in the afternoon. Slight chance of rain early in the morning then rain likely late in the morning. Chance of snow in the late morning and afternoon. Snow accumulation up to 2 inches. Snow level 3200 feet. Highs in the upper 40s. West winds 30 to 55 mph with gusts to around 85 mph. Chance of precipitation 70 percent.
Tonight
25°FPatchy blowing snow in the evening. Chance of snow in the evening then snow after midnight. Snow accumulation of 1 to 5 inches. Lows in the mid 20s. Northwest winds 15 to 20 mph with gusts to around 55 mph shifting to the west 5 to 15 mph after midnight. Chance of snow near 100 percent.
- 30|21°FSnowHourly details
Day
30°FColder snow. Snow accumulation of 1 to 6 inches. Highs in the lower 30s. Northwest winds 5 to 15 mph. Chance of snow near 100 percent.
Night
21°FSnow. Heavy snow accumulations. Lows in the lower 20s. Northeast winds 5 to 10 mph shifting to the east after midnight. Chance of snow near 100 percent.
Weekend Weather
- 32|5°FHeavy SnowHourly details
Day
32°FSnow. Heavy snow accumulations. Highs around 30. East winds 5 to 15 mph. Gusts up to 30 mph in the afternoon. Chance of snow near 100 percent.
Night
5°FColder. Mostly cloudy. Snow likely in the evening then slight chance of snow after midnight. Light snow accumulations. Lows around 6. Chance of snow 70 percent.
- 28|13°FPartly SunnyHourly details
Day
28°FPartly sunny with a 20 percent chance of snow. Highs in the upper 20s.
Night
13°FMostly cloudy. Slight chance of snow in the evening then chance of snow after midnight. Lows around 12. Chance of snow 50 percent.
- 45|36°F50% Chance Frozen MixHourly details
Day
45°FNot as cold. Mostly cloudy. Chance of snow in the morning then slight chance of rain and snow in the afternoon. Highs in the lower 40s. Chance of precipitation 50 percent.
Night
36°FNot as cool. Mostly cloudy. Chance of rain and slight chance of snow in the evening then slight chance of rain and snow after midnight. Lows in the mid 30s. Chance of precipitation 40 percent.
- 60|42°FMostly CloudyHourly details
Day
60°FBreezy warmer. Mostly cloudy. Highs in the upper 50s. Lows in the lower 40s.
Night
42°FBreezy warmer. Mostly cloudy. Highs in the upper 50s. Lows in the lower 40s.
- 64|47°FPartly Sunny
Day
64°FWarmer. Partly sunny. Highs in the upper 60s.
Night
47°FMostly clear. Low temperature around 47F. Dew point will be around 30F with an average humidity of 43%. Winds will be 14 mph from the SW.
- 68|49°FSunny
Day
68°FSunny. High temperature around 68F. Dew point will be around 31F with an average humidity of 36%. Winds will be 15 mph from the W.
Night
49°FPartly cloudy. Low temperature around 49F. Dew point will be around 35F with an average humidity of 51%. Winds will be 10 mph from the W.
- 67|45°FPartly Cloudy
Day
67°FPartly cloudy. High temperature around 67F. Dew point will be around 28F with an average humidity of 31%. Winds will be 11 mph from the W.
Night
45°FMostly cloudy with a slight chance of rain. Chance of precipitation 25%. Low temperature around 45F. Dew point will be around 33F with an average humidity of 49%. Winds will be 9 mph from the W.
Weekend Weather
- 58|37°F30% Chance of Rain
Day
58°FPartly cloudy with a slight chance of rain. Chance of precipitation 25%. High temperature around 58F. Dew point will be around 22F with an average humidity of 31%. Winds will be 11 mph from the W.
Night
37°FMostly clear. Low temperature around 37F. Dew point will be around 24F with an average humidity of 49%. Winds will be 11 mph from the W.













