Areas of Dangerous Heat and Severe Thunderstorms

Dangerous heat will build across the Southwest U.S. through the end of the week with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week before returning over much of the Plains into next week. Severe thunderstorms are expected across parts of the central and southern High Plains, central Great Lakes, and Ozarks Wednesday. Read More >

Current conditions at

ROCKY BOY (RCBM8)

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

NA

63°F

17°C

Humidity 51%
Wind Speed ESE 1 MPH
Barometer NA
Dewpoint 44°F (7°C)
Visibility NA
Last update 25 Aug 08:18 PM MDT
Extended Forecast for

Big Sandy MT

  • Tonight

    Tonight: Mostly clear, with a low around 56. East wind around 6 mph.

    Low: 56 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 91. Southeast wind 3 to 6 mph.

    High: 91 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 60. East southeast wind 6 to 13 mph, with gusts as high as 25 mph.

    Low: 60 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 94. South wind 3 to 6 mph.

    High: 94 °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 wind 5 to 7 mph becoming calm  after midnight.  Chance of precipitation is 30%.

    Low: 58 °F

    Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 88. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 88 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 56. West wind around 5 mph becoming calm  after midnight.

    Low: 56 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 82. Calm wind becoming west northwest 5 to 7 mph in the afternoon.

    High: 82 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of showers, mainly before midnight.  Partly cloudy, with a low around 51.

    Low: 51 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 56. East wind around 6 mph.
Wednesday
Sunny, with a high near 91. Southeast wind 3 to 6 mph.
Wednesday Night
Mostly cloudy, with a low around 60. East southeast wind 6 to 13 mph, with gusts as high as 25 mph.
Thursday
Mostly sunny, with a high near 94. South wind 3 to 6 mph.
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 wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 30%.
Friday
Sunny, with a high near 88. Calm wind becoming west 5 to 7 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 56. West wind around 5 mph becoming calm after midnight.
Saturday
Mostly sunny, with a high near 82. Calm wind becoming west northwest 5 to 7 mph in the afternoon.
Saturday Night
A chance of showers, mainly before midnight. Partly cloudy, with a low around 51.
Sunday
A slight chance of showers. Mostly sunny, with a high near 75.
Sunday Night
Mostly clear, with a low around 48.
Monday
Sunny, with a high near 81.
Monday Night
Partly cloudy, with a low around 53.
Tuesday
Sunny, with a high near 83.
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ABOUT THIS FORECAST

 
Point Forecast:
Big Sandy MT
 48.16°N 110.1°W (Elev. 2717 ft)
8:02 pm MDT Aug 25, 2026
8pm MDT Aug 25, 2026-6pm MDT Sep 1, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database