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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

ROCKY BOY (ROCM8)

Lat: 48.17478°NLon: 109.64728°WElev: 4700.0ft.

46°F

8°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

6 Miles SE Rocky Boy MT

Tonight
Low: 36 °F
Mostly Clear
Juneteenth
High: 61 °F
Increasing
Clouds
Friday Night
Low: 44 °F
Partly Cloudy
Saturday
High: 69 °F
Partly Sunny
Saturday Night
Low: 46 °F
Chance
T-storms then
Chance
Showers
Sunday
High: 59 °F
Partly Sunny
then Slight
Chance
T-storms
Sunday Night
Low: 39 °F
Chance
Showers
Monday
High: 54 °F
Chance
Showers
Monday Night
Low: 37 °F
Mostly Clear

Detailed Forecast

Tonight

Mostly clear, with a low around 36. Northwest wind 6 to 9 mph.

Juneteenth

Increasing clouds, with a high near 61. Northwest wind around 6 mph becoming east in the afternoon.

Friday Night

Partly cloudy, with a low around 44. Southeast wind 7 to 12 mph increasing to 16 to 21 mph after midnight. Winds could gust as high as 33 mph.

Saturday

Partly sunny, with a high near 69. Southeast wind 13 to 18 mph, with gusts as high as 32 mph.

Saturday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 46. Southeast wind 8 to 10 mph becoming west after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 50%.

Sunday

A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 59. West northwest wind 11 to 15 mph, with gusts as high as 26 mph.

Sunday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 39. Northwest wind 9 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.

Monday

A chance of showers. Partly sunny, with a high near 54. West northwest wind 10 to 13 mph, with gusts as high as 26 mph.

Monday Night

Mostly clear, with a low around 37.

Tuesday

Mostly sunny, with a high near 64.

Tuesday Night

Partly cloudy, with a low around 44.

Wednesday

A slight chance of showers and thunderstorms. Mostly sunny, with a high near 70.

Wednesday Night

A slight chance of showers and thunderstorms. Partly cloudy, with a low around 47.