Lewistown, MT Weather - Extended Forecast

Sunday

Sunny

High:
89°F

Sunny, with a high near 89. South southwest wind 5 to 9 mph becoming west northwest in the afternoon. Winds could gust as high as 18 mph.

Sunday Night

Partly cloudy

Overnight low:
57°F

Partly cloudy, with a low around 57. Northwest wind 6 to 9 mph becoming south after midnight.

Monday

Sunny

High:
82°F

A chance of showers between noon and 5pm, then a chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 82. South southwest wind 6 to 14 mph becoming north northwest in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 30%.

Monday Night

Showers likely

Overnight low:
46°F

Showers likely and possibly a thunderstorm. Cloudy, with a low around 46. Northwest wind 9 to 14 mph, with gusts as high as 24 mph.

Tuesday

Showers likely

High:
59°F

Tuesday Night

Chance of showers

Overnight low:
41°F

Wednesday

Chance of showers and thunderstorms

High:
66°F

Wednesday Night

Mostly clear

Overnight low:
44°F

Thursday

Sunny

High:
80°F