Weather in Lewistown, Montana, United States

7-Day Detailed Weather Forecast for Lewistown

Independence Day

Temperature: 81°F

Wind Speed: 5 to 9 mph

Wind Direction: N

Forecast: A slight chance of rain showers between noon and 3pm, then a slight chance of showers and thunderstorms between 3pm and 4pm, then a chance of showers and thunderstorms. Partly sunny. High near 81, with temperatures falling to around 76 in the afternoon. North wind 5 to 9 mph. Chance of precipitation is 50%.

Tonight

Temperature: 50°F

Wind Speed: 3 to 9 mph

Wind Direction: S

Forecast: Showers and thunderstorms likely. Mostly cloudy, with a low around 50. South wind 3 to 9 mph. Chance of precipitation is 70%.

Saturday

Temperature: 67°F

Wind Speed: 5 to 8 mph

Wind Direction: WNW

Forecast: A chance of rain showers before noon, then showers and thunderstorms. Mostly cloudy. High near 67, with temperatures falling to around 64 in the afternoon. West northwest wind 5 to 8 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Saturday Night

Temperature: 45°F

Wind Speed: 2 to 8 mph

Wind Direction: W

Forecast: A chance of showers and thunderstorms before 9pm, then a chance of showers and thunderstorms between 9pm and midnight. Partly cloudy, with a low around 45. West wind 2 to 8 mph. Chance of precipitation is 40%.

Sunday

Temperature: 77°F

Wind Speed: 6 mph

Wind Direction: WSW

Forecast: Sunny, with a high near 77. West southwest wind around 6 mph.

Sunday Night

Temperature: 51°F

Wind Speed: 6 mph

Wind Direction: ESE

Forecast: A slight chance of showers and thunderstorms before midnight. Mostly clear, with a low around 51. East southeast wind around 6 mph. Chance of precipitation is 20%.

Monday

Temperature: 81°F

Wind Speed: 6 mph

Wind Direction: ENE

Forecast: Sunny, with a high near 81. East northeast wind around 6 mph.

Monday Night

Temperature: 54°F

Wind Speed: 6 mph

Wind Direction: ESE

Forecast: Mostly clear, with a low around 54. East southeast wind around 6 mph.

Tuesday

Temperature: 89°F

Wind Speed: 3 to 7 mph

Wind Direction: SW

Forecast: Sunny, with a high near 89.

Tuesday Night

Temperature: 58°F

Wind Speed: 7 mph

Wind Direction: S

Forecast: Mostly clear, with a low around 58.

Wednesday

Temperature: 92°F

Wind Speed: 3 to 7 mph

Wind Direction: W

Forecast: Sunny, with a high near 92.

Wednesday Night

Temperature: 58°F

Wind Speed: 7 mph

Wind Direction: S

Forecast: Mostly cloudy, with a low around 58.

Thursday

Temperature: 87°F

Wind Speed: 5 to 9 mph

Wind Direction: W

Forecast: Mostly sunny, with a high near 87.

Thursday Night

Temperature: 56°F

Wind Speed: 5 to 10 mph

Wind Direction: S

Forecast: Partly cloudy, with a low around 56.