Weather in Lewistown, Montana, United States

7-Day Detailed Weather Forecast for Lewistown

This Afternoon

Temperature: 48°F

Wind Speed: 9 mph

Wind Direction: NW

Forecast: Snow likely. Cloudy. High near 48, with temperatures falling to around 18 in the afternoon. Northwest wind around 9 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

Tonight

Temperature: 5°F

Wind Speed: 8 mph

Wind Direction: NW

Forecast: Snow. Cloudy. Low around 5, with temperatures rising to around 8 overnight. Wind chill values as low as -2. Northwest wind around 8 mph. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.

Friday

Temperature: 10°F

Wind Speed: 5 to 8 mph

Wind Direction: ENE

Forecast: Snow. Cloudy, with a high near 10. Wind chill values as low as -5. East northeast wind 5 to 8 mph. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.

Friday Night

Temperature: 3°F

Wind Speed: 8 mph

Wind Direction: NE

Forecast: Snow likely. Cloudy, with a low around 3. Wind chill values as low as -5. Northeast wind around 8 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

Saturday

Temperature: 30°F

Wind Speed: 3 to 7 mph

Wind Direction: SW

Forecast: A slight chance of snow before 11am. Mostly cloudy, with a high near 30. Southwest wind 3 to 7 mph. Chance of precipitation is 20%. New snow accumulation of less than half an inch possible.

Saturday Night

Temperature: 21°F

Wind Speed: 7 to 10 mph

Wind Direction: SSW

Forecast: Partly cloudy, with a low around 21. South southwest wind 7 to 10 mph, with gusts as high as 18 mph.

Sunday

Temperature: 49°F

Wind Speed: 13 mph

Wind Direction: SW

Forecast: Partly sunny, with a high near 49. Southwest wind around 13 mph, with gusts as high as 22 mph.

Sunday Night

Temperature: 35°F

Wind Speed: 13 mph

Wind Direction: SW

Forecast: Mostly cloudy, with a low around 35. Southwest wind around 13 mph, with gusts as high as 21 mph.

Monday

Temperature: 51°F

Wind Speed: 10 to 15 mph

Wind Direction: SW

Forecast: Partly sunny, with a high near 51.

Monday Night

Temperature: 37°F

Wind Speed: 15 to 18 mph

Wind Direction: SW

Forecast: A slight chance of rain after 5am. Mostly cloudy, with a low around 37.

Tuesday

Temperature: 49°F

Wind Speed: 13 to 17 mph

Wind Direction: WSW

Forecast: A slight chance of rain before 5pm, then a chance of rain and snow. Mostly sunny, with a high near 49.

Tuesday Night

Temperature: 28°F

Wind Speed: 15 mph

Wind Direction: SW

Forecast: A chance of rain and snow. Mostly cloudy, with a low around 28. New snow accumulation of less than half an inch possible.

Wednesday

Temperature: 41°F

Wind Speed: 14 to 20 mph

Wind Direction: W

Forecast: A chance of rain and snow before 5pm. Partly sunny, with a high near 41. New snow accumulation of less than half an inch possible.

Wednesday Night

Temperature: 22°F

Wind Speed: 10 to 14 mph

Wind Direction: WSW

Forecast: Mostly cloudy, with a low around 22.