Thursday
Partly sunny
High:
89°F
A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 89. Light and variable wind.
Lewistown, MT Weather - Extended Forecast
Thursday Night
Mostly clear
Overnight low:
60°F
Mostly clear, with a low around 60. South wind 3 to 8 mph.
Friday
Hot
High:
97°F
Sunny and hot, with a high near 97. South southwest wind 6 to 16 mph becoming west in the afternoon. Winds could gust as high as 26 mph.
Friday Night
Mostly clear
Overnight low:
61°F
Mostly clear, with a low around 61. West northwest wind 5 to 11 mph becoming south after midnight. Winds could gust as high as 25 mph.
Saturday
Hot
High:
97°F
Saturday Night
Partly cloudy
Overnight low:
61°F
Sunday
Sunny
High:
94°F
Sunday Night
Chance of showers and thunderstorms
Overnight low:
59°F
Monday
Sunny
High:
92°F