10-Day Weather Forecast - Lewistown, MT

Partly sunny with a 20 percent chance of snow. Highs in the mid 30s. West winds 5 to 15 mph with gusts to around 35 mph shifting to the south 5 to 10 mph in the afternoon.

Snow. Snow accumulation of 1 to 3 inches. Lows around 18. Southeast winds 5 to 10 mph shifting to the northwest 5 to 15 mph with gusts to around 30 mph after midnight. Chance of snow 90 percent.

Cloudy. Snow likely in the morning then slight chance of snow in the afternoon. Light snow accumulations. Highs 24 to 30. North winds 5 to 15 mph. Chance of snow 70 percent.

Mostly cloudy. A 40 percent chance of snow in the evening. Lows 12 to 18. Southeast winds 5 to 10 mph shifting to the southwest 5 to 15 mph with gusts to around 30 mph after midnight.

Breezy. Not as cool. Mostly cloudy. Highs 35 to 41. Lows in the upper 20s.

Breezy. Not as cool. Mostly cloudy. Highs 35 to 41. Lows in the upper 20s.

Mostly sunny. Highs in the lower 40s.

Mostly cloudy. A 20 percent chance of rain after midnight. Lows around 30.

Windy. Mostly cloudy with a 50 percent chance of rain. Highs in the mid 40s.

Mostly cloudy with a 50 percent chance of rain and snow. Lows in the upper 20s. Highs in the upper 30s.

Mostly cloudy with a 50 percent chance of rain and snow. Lows in the upper 20s. Highs in the upper 30s.

Mostly cloudy with a 50 percent chance of rain and snow. Lows in the upper 20s. Highs in the upper 30s.

Mostly cloudy. Chance of snow and rain in the morning then slight chance of snow and rain in the afternoon. Highs in the lower 40s. Chance of precipitation 40 percent.

Cloudy with a chance of snow. Chance of precipitation 45%. Low temperature around 28F. Dew point will be around 24F with an average humidity of 82%. Winds will be 8 mph from the W.

Cloudy with a chance of rain-snow mix. Chance of precipitation 50%. High temperature around 34F. Dew point will be around 26F with an average humidity of 79%. Winds will be 6 mph from the SW.

Cloudy with a slight chance of snow. Chance of precipitation 30%. Low temperature around 29F. Dew point will be around 23F with an average humidity of 78%. Winds will be 8 mph from the SW.

Cloudy with a slight chance of rain-snow mix. Chance of precipitation 30%. High temperature around 36F. Dew point will be around 26F with an average humidity of 73%. Winds will be 8 mph from the SW.

Cloudy with a slight chance of snow. Chance of precipitation 25%. Low temperature around 23F. Dew point will be around 20F with an average humidity of 74%. Winds will be 8 mph from the W.