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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 (RCBM8)

Lat: 48.25529°NLon: 109.78592°WElev: 3789.0ft.

66°F

19°C

Humidity	60%
Wind Speed	WNW 2 MPH
Barometer	NA
Dewpoint	52°F (11°C)
Visibility	NA
Last update	27 Jun 12:18 PM MDT

More Information:

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

Extended Forecast for

5 Miles NNW Rocky Boy MT

This Afternoon
High: 70 °F
Mostly Sunny
Tonight
Low: 51 °F
Chance
Showers then
Showers
Sunday
High: 61 °F
Showers
Sunday Night
Low: 48 °F
Rain and
Breezy
Monday
High: 60 °F
Rain
Monday Night
Low: 49 °F
Showers
Tuesday
High: 68 °F
Showers
Likely
Tuesday Night
Low: 51 °F
Slight Chance
T-storms then
Partly Cloudy
Wednesday
High: 72 °F
Partly Sunny
then Slight
Chance
T-storms

Detailed Forecast

This Afternoon

Mostly sunny, with a high near 70. Northwest wind around 6 mph.

Tonight

A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 3am. Low around 51. Northwest wind 5 to 7 mph becoming southwest in the evening. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday

Rain before noon, then showers and possibly a thunderstorm after noon. High near 61. West southwest wind 7 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

Sunday Night

Rain. Low around 48. Breezy, with a south southwest wind 17 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 90%.

Monday

Rain. High near 60. South wind around 15 mph becoming west in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 90%.

Monday Night

Showers and possibly a thunderstorm before 9pm, then rain after 9pm. Low around 49. West wind 11 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 90%.

Tuesday

Showers likely, with thunderstorms also possible after noon. Mostly cloudy, with a high near 68. West southwest wind 10 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.

Tuesday Night

A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 51. South southwest wind 5 to 9 mph.

Wednesday

A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 72.

Wednesday Night

A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 52.

Thursday

Mostly sunny, with a high near 77.

Thursday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 55.

Friday

A slight chance of showers and thunderstorms. Mostly sunny, with a high near 77.