PNS25-72: Soliciting Comments through December 19, 2025 on the Discontinuation of the Max/Min Temperature and Precipitation Table Product (RTP) for all NWS Alaska Region, Eastern Region, and Western Region Offices.

Lewistown, Lewistown Municipal Airport (KLWT)

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

Partly Cloudy

16°F

-9°C

Humidity	91%
Wind Speed	S 4 MPH
Barometer	30.29 in (1025.74 mb)
Dewpoint	14°F (-10°C)
Visibility	10.00 mi
Wind Chill	10°F (-12°C)
Last update	25 Nov 05:54 AM MST

More Information:

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

Extended Forecast for

Lewistown Municipal MT

Today
High: 34 °F
Increasing
Clouds
Tonight
Low: 23 °F
Cloudy then
Slight Chance
Snow
Wednesday
High: 34 °F
Chance Snow
then Mostly
Cloudy
Wednesday Night
Low: 22 °F
Mostly Cloudy
Thanksgiving Day
High: 38 °F
Chance Snow
Thursday Night
Low: 17 °F
Rain/Snow
Likely
Friday
High: 28 °F
Snow
Friday Night
Low: 9 °F
Snow Likely
Saturday
High: 23 °F
Chance Snow

Detailed Forecast

Today

Increasing clouds, with a high near 34. South wind around 6 mph.

Tonight

A 10 percent chance of snow after 5am. Cloudy, with a steady temperature around 23. South southwest wind around 6 mph.

Wednesday

A 30 percent chance of snow before 11am. Cloudy, with a high near 34. West wind around 6 mph becoming light and variable in the afternoon. New snow accumulation of less than a half inch possible.

Wednesday Night

Mostly cloudy, with a low around 22. Light south southwest wind.

Thanksgiving Day

A 40 percent chance of snow, mainly after 11am. Cloudy, with a high near 38. East southeast wind 3 to 5 mph. New snow accumulation of less than a half inch possible.

Thursday Night

Snow likely before 11pm, then rain and snow likely between 11pm and 2am, then snow likely after 2am. Cloudy, with a low around 17. East southeast wind 6 to 8 mph becoming west after midnight. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

Friday

Snow. High near 28. West northwest wind around 10 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

Friday Night

Snow likely, mainly before 11pm. Mostly cloudy, with a low around 9. West northwest wind 6 to 8 mph.

Saturday

A chance of snow. Mostly cloudy, with a high near 23.

Saturday Night

A chance of snow. Mostly cloudy, with a low around 1.

Sunday

A chance of snow. Partly sunny, with a high near 17.

Sunday Night

Mostly cloudy, with a low around -1.