Weather in Lewistown, Montana, United States

7-Day Detailed Weather Forecast for Lewistown

Tonight

Temperature: 3°F

Wind Speed: 7 mph

Wind Direction: WNW

Forecast: Snow likely. Cloudy, with a low around 3. Wind chill values as low as -7. West northwest wind around 7 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

Saturday

Temperature: 31°F

Wind Speed: 3 to 7 mph

Wind Direction: S

Forecast: A chance of snow before 11am. Mostly cloudy. High near 31, with temperatures falling to around 25 in the afternoon. Wind chill values as low as -6. South wind 3 to 7 mph. Chance of precipitation is 30%. New snow accumulation of less than half an inch possible.

Saturday Night

Temperature: 21°F

Wind Speed: 7 to 10 mph

Wind Direction: S

Forecast: Partly cloudy. Low around 21, with temperatures rising to around 36 overnight. South wind 7 to 10 mph.

Sunday

Temperature: 49°F

Wind Speed: 12 mph

Wind Direction: SW

Forecast: Partly sunny, with a high near 49. Southwest wind around 12 mph, with gusts as high as 21 mph.

Sunday Night

Temperature: 35°F

Wind Speed: 9 to 13 mph

Wind Direction: SW

Forecast: Mostly cloudy, with a low around 35. Southwest wind 9 to 13 mph, with gusts as high as 22 mph.

Monday

Temperature: 51°F

Wind Speed: 9 to 16 mph

Wind Direction: SW

Forecast: Partly sunny, with a high near 51. Southwest wind 9 to 16 mph, with gusts as high as 28 mph.

Monday Night

Temperature: 38°F

Wind Speed: 18 mph

Wind Direction: WSW

Forecast: Mostly cloudy, with a low around 38. West southwest wind around 18 mph, with gusts as high as 31 mph.

Tuesday

Temperature: 50°F

Wind Speed: 13 to 17 mph

Wind Direction: WSW

Forecast: A slight chance of rain after 5pm. Partly sunny, with a high near 50. West southwest wind 13 to 17 mph, with gusts as high as 32 mph.

Tuesday Night

Temperature: 31°F

Wind Speed: 13 to 18 mph

Wind Direction: SW

Forecast: A chance of rain before 5am, then a chance of rain and snow. Mostly cloudy, with a low around 31.

Wednesday

Temperature: 43°F

Wind Speed: 18 to 26 mph

Wind Direction: W

Forecast: A chance of rain and snow before 5pm. Mostly sunny, with a high near 43.

Wednesday Night

Temperature: 22°F

Wind Speed: 10 to 18 mph

Wind Direction: W

Forecast: A slight chance of snow after 5am. Partly cloudy, with a low around 22.

Thursday

Temperature: 39°F

Wind Speed: 12 mph

Wind Direction: SW

Forecast: A chance of snow. Partly sunny, with a high near 39.

Thursday Night

Temperature: 25°F

Wind Speed: 12 mph

Wind Direction: SSW

Forecast: A chance of snow before 2am, then a slight chance of rain and snow. Mostly cloudy, with a low around 25.

Friday

Temperature: 44°F

Wind Speed: 12 to 16 mph

Wind Direction: WSW

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