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Lewistown, MT

7-Day Forecast

Tonight
Partly Cloudy
Low: 30°
Partly cloudy with a low around 30.
East southeast wind 6 to 11 mph
with gusts as high as 20 mph.


Friday
Slight Chance Showers then Sunny
High: 55°
A slight chance of showers
between 10am and noon.
Sunny with a high near 55.
East southeast wind 6 to 15 mph
with gusts as high as 26 mph.
Chance of precipitation is 20%.


Friday Night
Partly Cloudy
Low: 34°
Partly cloudy with a low around 34.
Southeast wind 6 to 14 mph
with gusts as high as 25 mph.


Saturday
Mostly Sunny then Chance Showers
High: 69°
A 30% chance of showers and thunderstorms after noon.
Mostly sunny with a high near 69.
Calm wind becoming
north around 5 mph in the afternoon.


Saturday Night
Chance Showers then Mostly Cloudy
Low: 41°
A 30% chance of showers before midnight.
Mostly cloudy with a low around 41.
Southeast wind around 6 mph becoming calm after midnight.


Sunday
Chance Showers then Showers
High: 65°
A chance of showers,
then showers and possibly a thunderstorm after noon.
High near 65.
Calm wind becoming
north northwest 5 to 8 mph in the afternoon.
Chance of precipitation is 80%.


Sunday Night
Showers
Low: 38°
Showers and possibly a thunderstorm.
Low around 38.
North northwest wind around 10 mph
with gusts as high as 18 mph.
Chance of precipitation is 80%.


Monday
Showers Likely
High: 50°
Showers likely, mainly before noon.
Mostly cloudy with a high near 50.
Northwest wind 13 to 15 mph
with gusts as high as 24 mph.


Monday Night
Partly Cloudy
Low: 35°
Partly cloudy with a low around 35.


Tuesday
Mostly Sunny then Slight Chance Showers
High: 62°
A slight chance of showers after noon.
Partly sunny with a high near 62.


Tuesday Night
Chance Showers
Low: 41°
A chance of showers.
Mostly cloudy with a low around 41.


Wednesday
Chance Showers
High: 58°
A chance of showers.
Partly sunny with a high near 58.


Wednesday Night
Slight Chance Showers then Partly Cloudy
Low: 37°
A slight chance of showers.
Partly cloudy with a low around 37.


Thursday
Mostly Sunny
High: 65°
Mostly sunny with a high near 65.


Source: National Weather Service








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