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.

Overcast

19°F

-7°C

Humidity	100%
Wind Speed	ENE 3 MPH
Barometer	30.11 in (1019.64 mb)
Dewpoint	19°F (-7°C)
Visibility	10.00 mi
Last update	03 Dec 08:35 AM MST

More Information:

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

Extended Forecast for

Lewistown Municipal MT

Today
High: 32 °F
Patchy Fog
then Mostly
Sunny
Tonight
Low: 23 °F
Partly Cloudy
Thursday
High: 36 °F
Slight Chance
Snow
Thursday Night
Low: 21 °F
Chance Snow
then Mostly
Cloudy
Friday
High: 36 °F
Chance Snow
Friday Night
Low: 18 °F
Snow
Saturday
High: 34 °F
Chance Snow
Saturday Night
Low: 21 °F
Chance Snow
then Partly
Cloudy
Sunday
High: 40 °F
Partly Sunny

Detailed Forecast

Today

Patchy fog before 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 32. Calm wind becoming southwest around 6 mph in the afternoon.

Tonight

Partly cloudy, with a steady temperature around 23. West southwest wind 8 to 10 mph, with gusts as high as 18 mph.

Thursday

A 20 percent chance of snow after 11am. Mostly cloudy, with a high near 36. West southwest wind around 11 mph, with gusts as high as 22 mph.

Thursday Night

A 40 percent chance of snow before 11pm. Mostly cloudy, with a low around 21. West wind 10 to 13 mph, with gusts as high as 21 mph. New snow accumulation of less than a half inch possible.

Friday

A 30 percent chance of snow after 11am. Mostly cloudy, with a high near 36. West wind 6 to 10 mph, with gusts as high as 18 mph. New snow accumulation of less than a half inch possible.

Friday Night

Snow. Low around 18. Southwest wind around 11 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

Saturday

A 50 percent chance of snow. Mostly cloudy, with a high near 34. West southwest wind around 9 mph, with gusts as high as 18 mph. New snow accumulation of less than one inch possible.

Saturday Night

A chance of snow before 11pm. Mostly cloudy, with a low around 21. West southwest wind 7 to 10 mph, with gusts as high as 20 mph.

Sunday

Partly sunny, with a high near 40.

Sunday Night

Mostly cloudy, with a low around 28.

Monday

Mostly sunny, with a high near 41.

Monday Night

Mostly cloudy, with a low around 28.

Tuesday

A chance of rain and snow. Mostly cloudy, with a high near 47.