10-Day Weather Forecast - Lewistown, MT

Partly sunny. Patchy fog in the morning. Highs 35 to 51. Southeast winds up to 15 mph.

Mostly cloudy. Chance of rain and light freezing rain in the evening then chance of rain light freezing rain and snow after midnight. Patchy fog through the night. Lows 22 to 30. Southeast winds 5 to 10 mph shifting to the southwest after midnight. Chance of precipitation 50 percent.

Patchy fog in the morning. Cloudy with a 40 percent chance of rain and light freezing rain in the morning then partly sunny in the afternoon. Highs 36 to 46. Southwest winds up to 10 mph.

Partly cloudy in the evening then becoming mostly cloudy. Near steady temperature in the mid 30s. South winds up to 10 mph.

Partly sunny. Highs in the upper 40s.

Much colder. Mostly cloudy. Slight chance of rain and snow in the evening then slight chance of snow after midnight. Lows around 9. Chance of precipitation 20 percent.

Breezy. Much colder. Mostly cloudy. A 20 percent chance of snow in the morning. Highs 16 to 24.

Partly cloudy. Lows around 5. Highs 27 to 33.

Partly cloudy. Lows around 5. Highs 27 to 33.

Not as cool. Partly cloudy. Lows around 19. Highs 42 to 48.

Not as cool. Partly cloudy. Lows around 19. Highs 42 to 48.

Mostly cloudy. Lows around 30. Highs in the upper 40s.

Mostly cloudy. Lows around 30. Highs in the upper 40s.

Partly cloudy. Low temperature around 33F. Dew point will be around 20F with an average humidity of 55%. Winds will be 9 mph from the SW.

Partly cloudy. High temperature around 45F. Dew point will be around 22F with an average humidity of 45%. Winds will be 8 mph from the SW.

Partly cloudy. Low temperature around 32F. Dew point will be around 20F with an average humidity of 57%. Winds will be 8 mph from the SW.

Cloudy. High temperature around 41F. Dew point will be around 25F with an average humidity of 58%. Winds will be 6 mph from the W.

Mostly cloudy. Low temperature around 27F. Dew point will be around 21F with an average humidity of 72%. Winds will be 6 mph from the SW.