Coastal Storm Impacting the Mid-Atlantic; Remaining Unseasonably Warm in the Central U.S.

A coastal storm will bring widespread rain, gusty winds, shallow coastal flooding, rip currents, large surf and possible areal flooding over the Mid-Atlantic region through Wednesday. Unseasonably warm to hot temperatures persist in the mid to upper Mississippi Valley, Ohio Valley, and into the Great Lakes and Northeast U.S. through Friday. Read More >

Current conditions at

ROCKY BOY (RCBM8)

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

NA

69°F

21°C

Humidity 54%
Wind Speed N 5 MPH
Barometer NA
Dewpoint 52°F (11°C)
Visibility NA
Last update 16 Sep 11:18 AM MDT
Extended Forecast for

Big Sandy MT

  • Today

    Today: A slight chance of rain between 1pm and 2pm.  Mostly sunny, with a high near 77. North wind around 6 mph.  Chance of precipitation is 20%.

    High: 77 °F

    Slight Chance
    Rain

  • Tonight

    Tonight: Mostly clear, with a low around 47. North northeast wind around 6 mph becoming calm  in the evening.

    Low: 47 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 78. Light and variable wind.

    High: 78 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 48. East southeast wind around 6 mph.

    Low: 48 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 79. Southeast wind 5 to 7 mph.

    High: 79 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 47. East southeast wind 7 to 9 mph.

    Low: 47 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 79. East wind around 6 mph.

    High: 79 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 49. East southeast wind around 6 mph.

    Low: 49 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

Detailed Forecast

Today
A slight chance of rain between 1pm and 2pm. Mostly sunny, with a high near 77. North wind around 6 mph. Chance of precipitation is 20%.
Tonight
Mostly clear, with a low around 47. North northeast wind around 6 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 78. Light and variable wind.
Wednesday Night
Mostly clear, with a low around 48. East southeast wind around 6 mph.
Thursday
Sunny, with a high near 79. Southeast wind 5 to 7 mph.
Thursday Night
Mostly clear, with a low around 47. East southeast wind 7 to 9 mph.
Friday
Sunny, with a high near 79. East wind around 6 mph.
Friday Night
Partly cloudy, with a low around 49. East southeast wind around 6 mph.
Saturday
Sunny, with a high near 84.
Saturday Night
Partly cloudy, with a low around 53.
Sunday
Sunny, with a high near 79.
Sunday Night
Partly cloudy, with a low around 47.
Monday
Sunny, with a high near 73.
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ABOUT THIS FORECAST

 
Point Forecast:
Big Sandy MT
 48.18°N 110.11°W (Elev. 2759 ft)
1:21 am MDT Sep 16, 2025
11am MDT Sep 16, 2025-6pm MDT Sep 22, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database