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.
Lewistown, MT Weather - Extended Forecast
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