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

50°F

10°C

Humidity 69%
Wind Speed WNW 1 MPH
Barometer NA
Dewpoint 40°F (4°C)
Visibility NA
Last update 03 Oct 12:18 AM MDT
Extended Forecast for

Box Elder MT

  • Overnight

    Overnight: Partly cloudy, with a low around 43. West southwest wind around 6 mph becoming north northwest.

    Low: 43 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 66. Light and variable wind.

    High: 66 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 38. East wind around 5 mph becoming calm after midnight.

    Low: 38 °F

    Partly Cloudy

  • Sunday

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

    High: 72 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 45. Southeast wind 3 to 6 mph.

    Low: 45 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 82. South southwest wind 8 to 13 mph becoming west in the afternoon. Winds could gust as high as 23 mph.

    High: 82 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 47. Southwest wind 5 to 8 mph.

    Low: 47 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 75. Calm wind becoming west around 6 mph in the afternoon.

    High: 75 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 43. West southwest wind around 6 mph becoming north northwest.
Saturday
Sunny, with a high near 66. Light and variable wind.
Saturday Night
Partly cloudy, with a low around 38. East wind around 5 mph becoming calm after midnight.
Sunday
Sunny, with a high near 72. Light and variable wind.
Sunday Night
Mostly clear, with a low around 45. Southeast wind 3 to 6 mph.
Monday
Sunny, with a high near 82. South southwest wind 8 to 13 mph becoming west in the afternoon. Winds could gust as high as 23 mph.
Monday Night
Mostly clear, with a low around 47. Southwest wind 5 to 8 mph.
Tuesday
Sunny, with a high near 75. Calm wind becoming west around 6 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 43.
Wednesday
Mostly sunny, with a high near 72.
Wednesday Night
Partly cloudy, with a low around 42.
Thursday
Mostly sunny, with a high near 72.
Thursday Night
Partly cloudy, with a low around 45.
Friday
Mostly sunny, with a high near 76.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Box Elder MT
 48.31°N 110°W (Elev. 2690 ft)
Last Update:
12:31 am MDT Oct 3, 2026
Forecast Valid:
1am MDT Oct 3, 2026-6pm MDT Oct 9, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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