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.

Hazardous Weather Conditions

Winter Weather Advisory in effect from December 2, 05:00 AM MST until December 3, 05:00 AM MST

Current conditions at

Lewistown, Lewistown Municipal Airport (KLWT)

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

Overcast

34°F

1°C

Humidity	69%
Wind Speed	WSW 11 MPH
Barometer	29.72 in (1006.44 mb)
Dewpoint	25°F (-4°C)
Visibility	10.00 mi
Wind Chill	26°F (-3°C)
Last update	02 Dec 01:05 AM MST

More Information:

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

Extended Forecast for

Lewistown MT

Winter Weather Advisory December 2, 05:00am until December 3, 05:00am

Click here for hazard details and duration

Winter Weather Advisory

Overnight
Low: 29 °F
Snow
Tuesday
High: 34 °F
Snow
Tuesday Night
Low: 11 °F
Snow Likely
Wednesday
High: 33 °F
Gradual
Clearing
Wednesday Night
Low: 17 °F
Mostly Cloudy
Thursday
High: 38 °F
Partly Sunny
Thursday Night
Low: 22 °F
Chance Snow
Friday
High: 38 °F
Chance Snow
Friday Night
Low: 17 °F
Snow Likely

Detailed Forecast

Overnight

Snow, mainly after 4am. Steady temperature around 29. West wind around 10 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of less than one inch possible.

Tuesday

Snow. High near 34. West northwest wind 9 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

Tuesday Night

Snow likely. Cloudy, with a low around 11. Northwest wind 6 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.

Wednesday

Cloudy through mid morning, then gradual clearing, with a high near 33. Calm wind becoming southwest around 5 mph in the afternoon.

Wednesday Night

Mostly cloudy, with a low around 17. West southwest wind 6 to 9 mph.

Thursday

Partly sunny, with a high near 38. West wind 8 to 10 mph, with gusts as high as 20 mph.

Thursday Night

A 40 percent chance of snow, mainly before 11pm. Mostly cloudy, with a low around 22. 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 chance of snow. Mostly cloudy, with a high near 38. West southwest wind 7 to 10 mph, with gusts as high as 20 mph.

Friday Night

Snow likely, mainly before 11pm. Mostly cloudy, with a low around 17.

Saturday

Snow likely, mainly before 11am. Mostly cloudy, with a high near 33.

Saturday Night

A chance of snow. Mostly cloudy, with a low around 17.

Sunday

Partly sunny, with a high near 41.

Sunday Night

Mostly cloudy, with a low around 24.