Weather in Lewistown, Montana, United States

7-Day Detailed Weather Forecast for Lewistown

This Afternoon

Temperature: 49°F

Wind Speed: 15 mph

Wind Direction: WSW

Forecast: Mostly cloudy. High near 49, with temperatures falling to around 43 in the afternoon. West southwest wind around 15 mph, with gusts as high as 26 mph.

Tonight

Temperature: 36°F

Wind Speed: 13 to 23 mph

Wind Direction: SW

Forecast: Mostly cloudy. Low around 36, with temperatures rising to around 45 overnight. Southwest wind 13 to 23 mph, with gusts as high as 36 mph.

Wednesday

Temperature: 48°F

Wind Speed: 24 to 43 mph

Wind Direction: WSW

Forecast: Rain likely between 8am and 11am, then patchy blowing dust and a slight chance of rain and snow. Partly sunny. High near 48, with temperatures falling to around 33 in the afternoon. West southwest wind 24 to 43 mph, with gusts as high as 63 mph. Chance of precipitation is 60%.

Wednesday Night

Temperature: 18°F

Wind Speed: 13 to 39 mph

Wind Direction: WNW

Forecast: Patchy blowing dust before 10pm. Mostly cloudy, with a low around 18. West northwest wind 13 to 39 mph, with gusts as high as 63 mph.

Thursday

Temperature: 43°F

Wind Speed: 7 to 13 mph

Wind Direction: SW

Forecast: A slight chance of snow after 5pm. Partly sunny, with a high near 43. Southwest wind 7 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

Thursday Night

Temperature: 31°F

Wind Speed: 12 to 20 mph

Wind Direction: SSW

Forecast: A slight chance of snow before 8pm, then a chance of rain and snow. Mostly cloudy, with a low around 31. South southwest wind 12 to 20 mph, with gusts as high as 33 mph. Chance of precipitation is 30%.

Friday

Temperature: 48°F

Wind Speed: 12 to 20 mph

Wind Direction: W

Forecast: A chance of rain and snow. Partly sunny, with a high near 48. West wind 12 to 20 mph, with gusts as high as 32 mph. New snow accumulation of less than one inch possible.

Friday Night

Temperature: 19°F

Wind Speed: 8 to 12 mph

Wind Direction: W

Forecast: A chance of snow. Mostly cloudy, with a low around 19. West wind 8 to 12 mph, with gusts as high as 22 mph. New snow accumulation of less than one inch possible.

Saturday

Temperature: 37°F

Wind Speed: 8 to 13 mph

Wind Direction: W

Forecast: A slight chance of snow before 11am. Mostly sunny, with a high near 37.

Saturday Night

Temperature: 21°F

Wind Speed: 7 to 10 mph

Wind Direction: SW

Forecast: Partly cloudy, with a low around 21.

Sunday

Temperature: 41°F

Wind Speed: 7 mph

Wind Direction: SSW

Forecast: A slight chance of snow after 5pm. Partly sunny, with a high near 41.

Sunday Night

Temperature: 25°F

Wind Speed: 7 mph

Wind Direction: SSW

Forecast: A slight chance of snow before 11pm, then a slight chance of rain and snow. Mostly cloudy, with a low around 25.

Monday

Temperature: 45°F

Wind Speed: 9 mph

Wind Direction: WSW

Forecast: A slight chance of rain and snow before 5pm. Mostly cloudy, with a high near 45.

Monday Night

Temperature: 26°F

Wind Speed: 8 mph

Wind Direction: SW

Forecast: Mostly cloudy, with a low around 26.