Weather in Lewistown, Montana, United States

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7-Day Detailed Weather Forecast for Lewistown

This Afternoon

Temperature: 69°F

Wind Speed: 2 mph

Wind Direction: NW

Forecast: Mostly sunny, with a high near 69. Northwest wind around 2 mph.

Tonight

Temperature: 41°F

Wind Speed: 3 mph

Wind Direction: WSW

Forecast: Mostly clear, with a low around 41. West southwest wind around 3 mph.

Monday

Temperature: 73°F

Wind Speed: 3 to 10 mph

Wind Direction: WNW

Forecast: Mostly sunny, with a high near 73. West northwest wind 3 to 10 mph, with gusts as high as 21 mph.

Monday Night

Temperature: 50°F

Wind Speed: 2 to 7 mph

Wind Direction: SSW

Forecast: A slight chance of showers and thunderstorms between 11pm and midnight. Cloudy, with a low around 50. South southwest wind 2 to 7 mph. Chance of precipitation is 20%.

Tuesday

Temperature: 81°F

Wind Speed: 9 to 24 mph

Wind Direction: W

Forecast: Mostly sunny, with a high near 81. West wind 9 to 24 mph, with gusts as high as 36 mph.

Tuesday Night

Temperature: 46°F

Wind Speed: 17 to 24 mph

Wind Direction: WNW

Forecast: Rain showers likely after midnight. Partly cloudy, with a low around 46. West northwest wind 17 to 24 mph, with gusts as high as 37 mph. Chance of precipitation is 60%.

Wednesday

Temperature: 64°F

Wind Speed: 17 to 22 mph

Wind Direction: WNW

Forecast: Rain showers likely before noon, then a chance of showers and thunderstorms. Partly sunny, with a high near 64. West northwest wind 17 to 22 mph, with gusts as high as 32 mph.

Wednesday Night

Temperature: 40°F

Wind Speed: 3 to 20 mph

Wind Direction: WNW

Forecast: Partly cloudy, with a low around 40. West northwest wind 3 to 20 mph, with gusts as high as 30 mph.

Thursday

Temperature: 70°F

Wind Speed: 3 to 7 mph

Wind Direction: WNW

Forecast: Mostly sunny, with a high near 70.

Thursday Night

Temperature: 43°F

Wind Speed: 5 mph

Wind Direction: E

Forecast: Mostly clear, with a low around 43.

Juneteenth

Temperature: 74°F

Wind Speed: 5 mph

Wind Direction: ENE

Forecast: Mostly sunny, with a high near 74.

Friday Night

Temperature: 46°F

Wind Speed: 8 mph

Wind Direction: E

Forecast: Partly cloudy, with a low around 46.

Saturday

Temperature: 69°F

Wind Speed: 5 to 8 mph

Wind Direction: E

Forecast: A chance of showers and thunderstorms after noon. Partly sunny, with a high near 69.

Saturday Night

Temperature: 45°F

Wind Speed: 5 to 9 mph

Wind Direction: E

Forecast: A chance of showers and thunderstorms. Mostly cloudy, with a low around 45.