Weather in Lewistown, Montana, United States

7-Day Detailed Weather Forecast for Lewistown

Tonight

Temperature: 22°F

Wind Speed: 13 mph

Wind Direction: S

Forecast: Mostly clear. Low around 22, with temperatures rising to around 37 overnight. South wind around 13 mph, with gusts as high as 18 mph.

Sunday

Temperature: 49°F

Wind Speed: 12 to 17 mph

Wind Direction: SSW

Forecast: Partly sunny. High near 49, with temperatures falling to around 43 in the afternoon. South southwest wind 12 to 17 mph, with gusts as high as 24 mph.

Sunday Night

Temperature: 34°F

Wind Speed: 12 mph

Wind Direction: SW

Forecast: Partly cloudy. Low around 34, with temperatures rising to around 37 overnight. Southwest wind around 12 mph, with gusts as high as 21 mph.

Monday

Temperature: 51°F

Wind Speed: 9 to 15 mph

Wind Direction: SW

Forecast: Partly sunny, with a high near 51. Southwest wind 9 to 15 mph, with gusts as high as 26 mph.

Monday Night

Temperature: 37°F

Wind Speed: 15 to 18 mph

Wind Direction: WSW

Forecast: Mostly cloudy, with a low around 37. West southwest wind 15 to 18 mph, with gusts as high as 33 mph.

Tuesday

Temperature: 49°F

Wind Speed: 10 to 18 mph

Wind Direction: W

Forecast: Mostly sunny, with a high near 49. West wind 10 to 18 mph, with gusts as high as 33 mph.

Tuesday Night

Temperature: 32°F

Wind Speed: 10 to 17 mph

Wind Direction: SW

Forecast: A chance of rain and snow after 11pm. Mostly cloudy, with a low around 32. Southwest wind 10 to 17 mph, with gusts as high as 29 mph.

Wednesday

Temperature: 45°F

Wind Speed: 17 to 28 mph

Wind Direction: WSW

Forecast: A chance of rain before 8am, then a chance of rain and snow between 8am and 5pm. Partly sunny, with a high near 45. West southwest wind 17 to 28 mph, with gusts as high as 43 mph. New snow accumulation of less than half an inch possible.

Wednesday Night

Temperature: 13°F

Wind Speed: 9 to 22 mph

Wind Direction: W

Forecast: A slight chance of snow after 5am. Mostly cloudy, with a low around 13.

Thursday

Temperature: 36°F

Wind Speed: 10 mph

Wind Direction: WSW

Forecast: A chance of snow. Partly sunny, with a high near 36.

Thursday Night

Temperature: 23°F

Wind Speed: 12 mph

Wind Direction: SSW

Forecast: A chance of snow before 2am, then a chance of rain and snow. Mostly cloudy, with a low around 23.

Friday

Temperature: 44°F

Wind Speed: 12 to 16 mph

Wind Direction: WSW

Forecast: A chance of rain and snow. Partly sunny, with a high near 44.

Friday Night

Temperature: 24°F

Wind Speed: 12 mph

Wind Direction: WSW

Forecast: A chance of snow. Mostly cloudy, with a low around 24.

Saturday

Temperature: 40°F

Wind Speed: 8 to 12 mph

Wind Direction: WSW

Forecast: A slight chance of snow. Partly sunny, with a high near 40.