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

Strong Storms and Heavy Rainfall Threats; Dangerous Heat for Southern Plains into the Southwest

Thunderstorms, some severe, will impact areas of the Plains into the Midwest today. Rainfall can be locally heavy as well from these storms with isolated instances of flash flooding. Monsoonal flow will enhance rainfall across the Four Corners into the central Rockies today. Meanwhile, summer heat continues for the southern Plains, Southwest into southern California. Read More >

Current conditions at

ROCKY BOY (RCBM8)

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

NA

56°F

13°C

Humidity 81%
Wind Speed ESE 0 MPH
Barometer NA
Dewpoint 50°F (10°C)
Visibility NA
Last update 25 Aug 08:18 AM MDT
Extended Forecast for

Box Elder MT

  • Today

    Today: Sunny, with a high near 81. Calm wind becoming northeast 5 to 7 mph in the morning.

    High: 81 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 53. East wind 5 to 8 mph.

    Low: 53 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 90. East wind 3 to 5 mph.

    High: 90 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 59. East southeast wind 6 to 13 mph, with gusts as high as 24 mph.

    Low: 59 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 93. Calm wind becoming south around 5 mph in the afternoon.

    High: 93 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly cloudy, with a low around 58. South southwest wind 6 to 8 mph. Chance of precipitation is 30%.

    Low: 58 °F

    Chance
    Showers then
    Mostly Cloudy

  • Friday

    Friday: Sunny, with a high near 87. West wind 3 to 6 mph.

    High: 87 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 55. West wind around 5 mph becoming calm after midnight.

    Low: 55 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 81. Calm wind becoming northeast 5 to 7 mph in the morning.
Tonight
Mostly clear, with a low around 53. East wind 5 to 8 mph.
Wednesday
Mostly sunny, with a high near 90. East wind 3 to 5 mph.
Wednesday Night
Partly cloudy, with a low around 59. East southeast wind 6 to 13 mph, with gusts as high as 24 mph.
Thursday
Mostly sunny, with a high near 93. Calm wind becoming south around 5 mph in the afternoon.
Thursday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly cloudy, with a low around 58. South southwest wind 6 to 8 mph. Chance of precipitation is 30%.
Friday
Sunny, with a high near 87. West wind 3 to 6 mph.
Friday Night
Mostly cloudy, with a low around 55. West wind around 5 mph becoming calm after midnight.
Saturday
Mostly sunny, with a high near 82.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 51.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 74.
Sunday Night
A slight chance of showers. Partly cloudy, with a low around 48.
Monday
Sunny, with a high near 78.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Box Elder MT
 48.31°N 110°W (Elev. 2690 ft)
Last Update:
4:16 am MDT Aug 25, 2026
Forecast Valid:
9am MDT Aug 25, 2026-6pm MDT Aug 31, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation