Weather in Lewistown, Montana, United States

7-Day Detailed Weather Forecast for Lewistown

This Afternoon

Temperature: 44°F

Wind Speed: 14 to 17 mph

Wind Direction: WSW

Forecast: Mostly cloudy. High near 44, with temperatures falling to around 40 in the afternoon. West southwest wind 14 to 17 mph, with gusts as high as 32 mph.

Tonight

Temperature: 32°F

Wind Speed: 13 to 26 mph

Wind Direction: WSW

Forecast: Rain likely. Cloudy. Low around 32, with temperatures rising to around 44 overnight. West southwest wind 13 to 26 mph, with gusts as high as 38 mph. Chance of precipitation is 60%.

Tuesday

Temperature: 47°F

Wind Speed: 13 to 31 mph

Wind Direction: WNW

Forecast: Rain likely before 11am, then a chance of rain and snow between 11am and 5pm. Mostly cloudy. High near 47, with temperatures falling to around 34 in the afternoon. West northwest wind 13 to 31 mph, with gusts as high as 45 mph. Chance of precipitation is 60%.

Tuesday Night

Temperature: 24°F

Wind Speed: 6 to 13 mph

Wind Direction: SW

Forecast: Snow after 11pm. Mostly cloudy, with a low around 24. Southwest wind 6 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

Wednesday

Temperature: 45°F

Wind Speed: 7 to 16 mph

Wind Direction: WSW

Forecast: Snow before 8am, then rain and snow. Cloudy, with a high near 45. West southwest wind 7 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New snow accumulation of less than half an inch possible.

Wednesday Night

Temperature: 18°F

Wind Speed: 8 to 16 mph

Wind Direction: WNW

Forecast: Rain likely before 8pm, then rain and snow likely. Cloudy, with a low around 18. West northwest wind 8 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

Thursday

Temperature: 31°F

Wind Speed: 9 mph

Wind Direction: WNW

Forecast: Snow likely. Cloudy, with a high near 31. West northwest wind around 9 mph. New snow accumulation of 3 to 7 inches possible.

Thursday Night

Temperature: -2°F

Wind Speed: 7 mph

Wind Direction: NNW

Forecast: Snow likely. Cloudy, with a low around -2. North northwest wind around 7 mph. New snow accumulation of 3 to 7 inches possible.

Friday

Temperature: 22°F

Wind Speed: 6 mph

Wind Direction: ESE

Forecast: Snow likely. Mostly cloudy, with a high near 22. New snow accumulation of 2 to 4 inches possible.

Friday Night

Temperature: 6°F

Wind Speed: 7 mph

Wind Direction: SSW

Forecast: A chance of snow. Mostly cloudy, with a low around 6. New snow accumulation of 1 to 2 inches possible.

Saturday

Temperature: 31°F

Wind Speed: 7 mph

Wind Direction: WSW

Forecast: A chance of snow before 5pm. Mostly cloudy, with a high near 31. New snow accumulation of less than half an inch possible.

Saturday Night

Temperature: 17°F

Wind Speed: 8 mph

Wind Direction: SSW

Forecast: Mostly cloudy, with a low around 17.

Sunday

Temperature: 44°F

Wind Speed: 9 mph

Wind Direction: SW

Forecast: Partly sunny, with a high near 44.

Sunday Night

Temperature: 23°F

Wind Speed: 9 mph

Wind Direction: SW

Forecast: Mostly cloudy, with a low around 23.