National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Excessive Rainfall Possible This Weekend; October Heat Wave in California

A slow moving front will be the focus area for heavy to excessive rainfall and a threat for flash/urban flooding across the northern Gulf Coast and Southeast U.S. through this weekend. Abnormally hot, potentially record-breaking, temperatures will impact southern California and stretch north toward the Bay Area and Central Valley into next week. Read More >

Current conditions at

ROCKY BOY (RCBM8)

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

NA

49°F

9°C

Humidity 82%
Wind Speed NE 0 MPH
Barometer NA
Dewpoint 44°F (7°C)
Visibility NA
Last update 04 Oct 09:18 AM MDT
Extended Forecast for

Rocky Boy MT

  • Today

    Today: Sunny, with a high near 72. Light and variable wind.

    High: 72 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 51. South southeast wind 3 to 8 mph.

    Low: 51 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 78. Southwest wind 8 to 13 mph, with gusts as high as 28 mph.

    High: 78 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 48. West wind 5 to 9 mph becoming light west southwest after midnight. Winds could gust as high as 23 mph.

    Low: 48 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 70. Calm wind becoming west around 6 mph in the afternoon.

    High: 70 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 46. Calm wind.

    Low: 46 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 69. Calm wind becoming west southwest around 5 mph in the afternoon.

    High: 69 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 43. Light and variable wind.

    Low: 43 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 72. Light and variable wind.
Tonight
Mostly clear, with a low around 51. South southeast wind 3 to 8 mph.
Monday
Sunny, with a high near 78. Southwest wind 8 to 13 mph, with gusts as high as 28 mph.
Monday Night
Mostly clear, with a low around 48. West wind 5 to 9 mph becoming light west southwest after midnight. Winds could gust as high as 23 mph.
Tuesday
Sunny, with a high near 70. Calm wind becoming west around 6 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 46. Calm wind.
Wednesday
Mostly sunny, with a high near 69. Calm wind becoming west southwest around 5 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 43. Light and variable wind.
Thursday
Mostly sunny, with a high near 65.
Thursday Night
Partly cloudy, with a low around 44.
Friday
Mostly sunny, with a high near 71.
Friday Night
A slight chance of rain. Mostly cloudy, with a low around 42.
Saturday
A chance of rain. Partly sunny, with a high near 54.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Rocky Boy MT
 48.26°N 109.78°W (Elev. 3789 ft)
Last Update:
4:36 am MDT Oct 4, 2026
Forecast Valid:
10am MDT Oct 4, 2026-6pm MDT Oct 10, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation