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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

USCRN SITE NEAR LEWISTOWN 42WSW (JRWM8)

Lat: 46.88472°NLon: 110.28944°WElev: 5045.0ft.

68°F

20°C

Humidity	31%
Wind Speed	NA 9 MPH
Barometer	NA
Dewpoint	36°F (2°C)
Visibility	NA
Last update	19 Jun 07:00 PM MDT

More Information:

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

Extended Forecast for

5 Miles SW Windham MT

Tonight
Low: 47 °F
Partly Cloudy
Saturday
High: 76 °F
Mostly Sunny
then Chance
T-storms
Saturday Night
Low: 51 °F
Chance
T-storms then
Slight Chance
Showers
Sunday
High: 68 °F
Sunny then
Chance
Showers
Sunday Night
Low: 44 °F
Chance
Showers
Monday
High: 62 °F
Chance
Showers
Monday Night
Low: 41 °F
Mostly Clear
Tuesday
High: 70 °F
Sunny
Tuesday Night
Low: 46 °F
Mostly Clear

Detailed Forecast

Tonight

Partly cloudy, with a low around 47. South wind 10 to 14 mph, with gusts as high as 21 mph.

Saturday

A 50 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 76. South wind 5 to 9 mph becoming light and variable.

Saturday Night

A chance of showers and thunderstorms before 2am, then a slight chance of showers between 2am and 3am. Mostly cloudy, with a low around 51. Southwest wind 7 to 13 mph, with gusts as high as 18 mph. Chance of precipitation is 50%.

Sunday

A chance of showers between noon and 3pm, then a chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 68. West northwest wind 10 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.

Sunday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 44. North wind 5 to 11 mph. Chance of precipitation is 40%.

Monday

A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 62. Northwest wind 5 to 10 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 30%.

Monday Night

Mostly clear, with a low around 41. North northwest wind 13 to 18 mph becoming light and variable after midnight. Winds could gust as high as 30 mph.

Tuesday

Sunny, with a high near 70. Light and variable wind becoming east northeast 5 to 10 mph in the afternoon.

Tuesday Night

Mostly clear, with a low around 46.

Wednesday

Mostly sunny, with a high near 77.

Wednesday Night

Partly cloudy, with a low around 50.

Thursday

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