Wednesday
Sunny
High:
91°F
A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 91. Calm wind becoming south southeast 5 to 7 mph in the afternoon.
Lewistown, MT Weather - Extended Forecast
Wednesday Night
Chance of thunderstorms
Overnight low:
58°F
A 40 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 58. South southwest wind 5 to 9 mph.
Thursday
Partly sunny
High:
85°F
A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 85. Light and variable wind becoming north northwest 5 to 7 mph in the morning.
Thursday Night
Chance of thunderstorms
Overnight low:
56°F
A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 56. West wind 5 to 7 mph becoming south after midnight. Chance of precipitation is 50%.
Independence Day
Chance of showers
High:
77°F
Friday Night
Chance of thunderstorms
Overnight low:
52°F
Saturday
Chance of showers and thunderstorms
High:
78°F
Saturday Night
Chance of thunderstorms
Overnight low:
52°F
Sunday
Mostly sunny
High:
78°F
Sunday Night
Chance of thunderstorms
Overnight low:
52°F
Monday
Mostly sunny
High:
81°F