National Weather Service

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The Regional Temperatures and Precipitation Product for the State of Montana (RTPMT) will now be discontinued on July 7, 2026.

Current conditions at

BOULDER MOUNTAIN (BOMM8)

Lat: 46.5596°NLon: 111.28973°WElev: 7950.0ft.

64°F

18°C

Humidity	NA
Wind Speed	NA NA MPH
Barometer	NA
Dewpoint	N/A
Visibility	NA
Last update	NA

More Information:

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

Extended Forecast for

13 Miles SW White Sulphur Springs MT

Tonight
Low: 51 °F
Mostly Clear
Wednesday
High: 68 °F
Sunny then
Slight Chance
T-storms
Wednesday Night
Low: 51 °F
Chance
T-storms then
Mostly Cloudy
Thursday
High: 66 °F
Sunny
Thursday Night
Low: 52 °F
Mostly Clear
Friday
High: 71 °F
Sunny
Friday Night
Low: 57 °F
Mostly Clear
Saturday
High: 78 °F
Sunny
Saturday Night
Low: 60 °F
Mostly Clear

Detailed Forecast

Tonight

Mostly clear, with a low around 51. Northwest wind 5 to 9 mph becoming south southwest after midnight.

Wednesday

A 20 percent chance of showers and thunderstorms after 4pm. Sunny, with a high near 68. West southwest wind 5 to 9 mph becoming northwest in the afternoon. Winds could gust as high as 18 mph.

Wednesday Night

A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and midnight. Mostly cloudy, with a low around 51. West wind around 9 mph, with gusts as high as 18 mph. Chance of precipitation is 30%.

Thursday

Sunny, with a high near 66. West wind 5 to 9 mph.

Thursday Night

Mostly clear, with a low around 52. North wind around 8 mph.

Friday

Sunny, with a high near 71. Light southwest wind increasing to 6 to 11 mph in the afternoon. Winds could gust as high as 21 mph.

Friday Night

Mostly clear, with a low around 57. West southwest wind 6 to 9 mph becoming east northeast in the evening. Winds could gust as high as 18 mph.

Saturday

Sunny, with a high near 78. South wind 6 to 16 mph, with gusts as high as 28 mph.

Saturday Night

Mostly clear, with a low around 60.