Weather in Lewistown, Montana, United States

7-Day Detailed Weather Forecast for Lewistown

Today

Temperature: 79°F

Wind Speed: 2 to 7 mph

Wind Direction: S

Forecast: Mostly sunny, with a high near 79. South wind 2 to 7 mph.

Tonight

Temperature: 50°F

Wind Speed: 9 mph

Wind Direction: SSE

Forecast: Mostly cloudy. Low around 50, with temperatures rising to around 54 overnight. South southeast wind around 9 mph.

Wednesday

Temperature: 73°F

Wind Speed: 8 to 17 mph

Wind Direction: SSW

Forecast: A chance of rain showers between noon and 3pm, then a chance of showers and thunderstorms. Partly sunny. High near 73, with temperatures falling to around 66 in the afternoon. South southwest wind 8 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 50%.

Wednesday Night

Temperature: 29°F

Wind Speed: 15 to 25 mph

Wind Direction: W

Forecast: Showers and thunderstorms before 9pm, then rain between 9pm and midnight, then rain and snow between midnight and 3am, then rain and snow. Cloudy, with a low around 29. West wind 15 to 25 mph, with gusts as high as 37 mph. Chance of precipitation is 90%. New snow accumulation of less than half an inch possible.

Thursday

Temperature: 36°F

Wind Speed: 28 mph

Wind Direction: NW

Forecast: Snow likely. Mostly cloudy, with a high near 36. Northwest wind around 28 mph, with gusts as high as 40 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

Thursday Night

Temperature: 22°F

Wind Speed: 14 to 23 mph

Wind Direction: NW

Forecast: A chance of snow. Mostly cloudy, with a low around 22. Northwest wind 14 to 23 mph, with gusts as high as 36 mph. Chance of precipitation is 40%. New snow accumulation of less than half an inch possible.

Friday

Temperature: 35°F

Wind Speed: 16 to 22 mph

Wind Direction: NW

Forecast: A chance of snow. Mostly cloudy, with a high near 35. Northwest wind 16 to 22 mph, with gusts as high as 33 mph. New snow accumulation of less than half an inch possible.

Friday Night

Temperature: 19°F

Wind Speed: 9 to 21 mph

Wind Direction: WNW

Forecast: A slight chance of snow. Mostly cloudy, with a low around 19. West northwest wind 9 to 21 mph, with gusts as high as 31 mph.

Saturday

Temperature: 39°F

Wind Speed: 9 to 15 mph

Wind Direction: WNW

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

Saturday Night

Temperature: 20°F

Wind Speed: 5 to 12 mph

Wind Direction: WSW

Forecast: A slight chance of snow after midnight. Mostly cloudy, with a low around 20.

Sunday

Temperature: 43°F

Wind Speed: 6 to 9 mph

Wind Direction: NNW

Forecast: A slight chance of snow. Partly sunny, with a high near 43.

Sunday Night

Temperature: 24°F

Wind Speed: 5 to 8 mph

Wind Direction: E

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

Monday

Temperature: 48°F

Wind Speed: 5 to 8 mph

Wind Direction: WSW

Forecast: A slight chance of snow between noon and 3pm, then a slight chance of rain. Mostly sunny, with a high near 48.

Monday Night

Temperature: 28°F

Wind Speed: 8 mph

Wind Direction: SSE

Forecast: A slight chance of rain before 9pm, then a slight chance of rain and snow between 9pm and midnight. Partly cloudy, with a low around 28.