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SCN26-50: Discontinuation of the State Forecast Product (SFP) for all NWS Central Region, Southern Region, and Western Region Offices: Effective June 29, 2026
The Regional Temperatures and Precipitation Product for the State of Montana (RTPMT) will now be discontinued on July 7, 2026.

Current conditions at

Lewistown, Lewistown Municipal Airport (KLWT)

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

Partly Cloudy

N/A

Humidity	41%
Wind Speed	SE 4 MPH
Barometer	NA
Dewpoint	N/A
Visibility	10.00 mi
Last update	08 Jun 08:40 PM MDT

More Information:

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

Extended Forecast for

7 Miles NW Lewistown Municipal MT

Tonight
Low: 39 °F
Partly Cloudy
Juneteenth
High: 72 °F
Mostly Sunny
Friday Night
Low: 45 °F
Partly Cloudy
Saturday
High: 79 °F
Mostly Sunny
then Slight
Chance
T-storms
Saturday Night
Low: 48 °F
Chance
T-storms then
Mostly Cloudy
Sunday
High: 70 °F
Mostly Sunny
Sunday Night
Low: 42 °F
Slight Chance
T-storms then
Chance
Showers
Monday
High: 65 °F
Chance
Showers then
Slight Chance
T-storms
Monday Night
Low: 40 °F
Mostly Clear

Detailed Forecast

Tonight

Partly cloudy, with a low around 39. North northwest wind around 5 mph becoming calm after midnight.

Juneteenth

Mostly sunny, with a high near 72. Calm wind becoming east 5 to 8 mph in the afternoon.

Friday Night

Partly cloudy, with a low around 45. East southeast wind 8 to 16 mph, with gusts as high as 25 mph.

Saturday

A slight chance of showers between 1pm and 3pm, then a slight chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 79. East southeast wind 3 to 6 mph. Chance of precipitation is 20%.

Saturday Night

A 50 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 48. Southeast wind around 7 mph becoming west after midnight.

Sunday

Mostly sunny, with a high near 70. Northwest wind 9 to 14 mph, with gusts as high as 23 mph.

Sunday Night

A slight chance of showers and thunderstorms, then a chance of showers after midnight. Partly cloudy, with a low around 42. North northwest wind 9 to 14 mph becoming light west northwest after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 30%.

Monday

A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 65. Light west northwest wind becoming northwest 8 to 13 mph in the morning. Winds could gust as high as 23 mph.

Monday Night

Mostly clear, with a low around 40.

Tuesday

Sunny, with a high near 74.

Tuesday Night

Mostly clear, with a low around 45.

Wednesday

A slight chance of showers and thunderstorms. Mostly sunny, with a high near 80.

Wednesday Night

Partly cloudy, with a low around 48.

Thursday

A slight chance of showers and thunderstorms. Mostly sunny, with a high near 83.