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The Regional Temperatures and Precipitation Product for the State of Montana (RTPMT) will be discontinued on May 6, 2026.

Current conditions at

Lewistown, Lewistown Municipal Airport (KLWT)

Lat: 47.04917°NLon: 109.46639°WElev: 4167.0ft.

45°F

7°C

Humidity	48%
Wind Speed	W 8 MPH
Barometer	29.68 in (1005.08 mb)
Dewpoint	26°F (-3°C)
Visibility	10.00 mi
Wind Chill	41°F (5°C)
Last update	15 Apr 02:05 AM MDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

5 Miles WSW Lewistown Municipal MT

Today
High: 39 °F
Partly Sunny
then Slight
Chance Snow
Showers
Tonight
Low: 23 °F
Mostly Cloudy
Saturday
High: 57 °F
Sunny
Saturday Night
Low: 30 °F
Mostly Clear
Sunday
High: 67 °F
Sunny
Sunday Night
Low: 42 °F
Partly Cloudy
Monday
High: 71 °F
Mostly Sunny
Monday Night
Low: 44 °F
Partly Cloudy
Tuesday
High: 77 °F
Mostly Sunny

Detailed Forecast

Today

A slight chance of snow showers between noon and 5pm. Partly sunny, with a high near 39. Northwest wind 11 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.

Tonight

Mostly cloudy, with a low around 23. Northwest wind 6 to 14 mph becoming southwest after midnight. Winds could gust as high as 22 mph.

Saturday

Sunny, with a high near 57. Southwest wind 8 to 10 mph becoming west northwest in the afternoon. Winds could gust as high as 21 mph.

Saturday Night

Mostly clear, with a low around 30. West northwest wind 6 to 10 mph becoming south southwest after midnight. Winds could gust as high as 18 mph.

Sunday

Sunny, with a high near 67. South southwest wind 6 to 8 mph becoming west in the afternoon.

Sunday Night

Partly cloudy, with a low around 42. West wind around 10 mph becoming south in the evening.

Monday

Mostly sunny, with a high near 71. Southwest wind 7 to 10 mph becoming northwest in the afternoon.