10-Day Weather Forecast - Lewistown, MT
- 85|57°FSunnyHourly details
Today
85°FWarmer sunny. Highs in the upper 80s. South winds up to 10 mph shifting to the northwest in the afternoon.
Tonight
57°FPartly cloudy. Chance of rain showers and slight chance of thunderstorms in the evening. Lows 57 to 63. Southwest winds 5 to 10 mph. Gusts up to 25 mph after midnight. Chance of precipitation 50 percent.
- 86|58°FSunnyHourly details
Day
86°FSunny. Highs in the mid 80s. West winds 5 to 15 mph.
Night
58°FMostly clear. Lows 56 to 62. West winds up to 10 mph. Gusts up to 25 mph in the evening.
- 90|62°FSunnyHourly details
Day
90°FSunny. Highs in the lower 90s. West winds up to 10 mph.
Night
62°FMostly clear. Lows 59 to 68. Highs in the upper 90s.
Weekend Weather
- 95|65°FMostly SunnyHourly details
Day
95°FMostly clear. Lows 59 to 68. Highs in the upper 90s.
Night
65°FMostly clear. Lows 59 to 68. Highs in the upper 90s.
- 99|64°FMostly SunnyHourly details
Day
99°FMostly clear. Lows 59 to 68. Highs in the upper 90s.
Night
64°FPartly cloudy. Lows 64 to 70. Highs in the lower 90s.
- 90|66°FPartly CloudyHourly details
Day
90°FPartly cloudy. Lows 64 to 70. Highs in the lower 90s.
Night
66°FPartly cloudy. A 20 percent chance of thunderstorms. Lows 63 to 69. Highs in the upper 80s.
- 81|65°FPartly Cloudy
Day
81°FPartly cloudy. A 20 percent chance of thunderstorms. Lows 63 to 69. Highs in the upper 80s.
Night
65°FPartly cloudy with a 45% chance for rain and thunderstorms. Low temperature around 65F. Dew point will be around 56F with an average humidity of 66%. Winds will be 5 mph from the SE.
- 92|63°FSunny
Day
92°FSunny. High temperature around 92F. Dew point will be around 57F with an average humidity of 46%. Winds will be 2 mph from the SE.
Night
63°FPartly cloudy with a 30% chance for rain and thunderstorms. Low temperature around 63F. Dew point will be around 57F with an average humidity of 61%. Winds will be 4 mph from the SE.
- 90|64°FMostly Sunny
Day
90°FMostly sunny. High temperature around 90F. Dew point will be around 56F with an average humidity of 46%. Winds will be 3 mph from the S.
Night
64°FPartly cloudy. Low temperature around 64F. Dew point will be around 57F with an average humidity of 60%. Winds will be 4 mph from the S.
- 91|62°FSunny
Day
91°FSunny. High temperature around 91F. Dew point will be around 55F with an average humidity of 42%. Winds will be 4 mph from the N.
Night
62°FClear with a slight chance of rain. Chance of precipitation 25%. Low temperature around 62F. Dew point will be around 54F with an average humidity of 56%. Winds will be 3 mph from the S.













