Heavy Rain and Thunderstorms in the Mississippi Valley; Flooding Continues Along the East Coast of Florida

A cold front approaching the Mississippi Valley will bring heavy rainfall and isolated severe thunderstorms to the region. Thunderstorms will have the potential to produce isolated severe wind gusts and perhaps a brief tornado or two. Significant river flooding is forecast along the St. John’s and the Peace rivers in Florida through the end of the week as flood waters will be slow to recede. Read More >

Current conditions at

ROCKY BOY (RCBM8)

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

NA

26°F

-3°C

Humidity 93%
Wind Speed SE 1 MPH
Barometer NA
Dewpoint 24°F (-4°C)
Visibility NA
Last update 03 Nov 10:18 PM MST
Extended Forecast for

Big Sandy MT

  • Tonight

    Tonight: Patchy fog after 2am.  Otherwise, mostly cloudy, with a low around 29. Calm wind.

    Low: 29 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Wednesday

    Wednesday: Areas of fog before 11am.  Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 43. Calm wind.

    High: 43 °F

    Areas Fog
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog before 11pm, then patchy fog after 2am.  Otherwise, partly cloudy, with a low around 28. Calm wind.

    Low: 28 °F

    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 11am.  Otherwise, mostly sunny, with a high near 51. South wind 3 to 5 mph.

    High: 51 °F

    Patchy Fog
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 32. Southwest wind 3 to 5 mph.

    Low: 32 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 54. South southwest wind 6 to 13 mph, with gusts as high as 26 mph.

    High: 54 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 36. West southwest wind around 11 mph, with gusts as high as 23 mph.

    Low: 36 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 53. West southwest wind 7 to 10 mph, with gusts as high as 20 mph.

    High: 53 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 35.

    Low: 35 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 29. Calm wind.
Wednesday
Areas of fog before 11am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 43. Calm wind.
Wednesday Night
Patchy fog before 11pm, then patchy fog after 2am. Otherwise, partly cloudy, with a low around 28. Calm wind.
Thursday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 51. South wind 3 to 5 mph.
Thursday Night
Partly cloudy, with a low around 32. Southwest wind 3 to 5 mph.
Friday
Sunny, with a high near 54. South southwest wind 6 to 13 mph, with gusts as high as 26 mph.
Friday Night
Partly cloudy, with a low around 36. West southwest wind around 11 mph, with gusts as high as 23 mph.
Saturday
Mostly sunny, with a high near 53. West southwest wind 7 to 10 mph, with gusts as high as 20 mph.
Saturday Night
Partly cloudy, with a low around 35.
Sunday
Mostly sunny, with a high near 61.
Sunday Night
Mostly cloudy, with a low around 37.
Monday
Mostly sunny, with a high near 54.
Monday Night
Mostly cloudy, with a low around 36.
Tuesday
Mostly sunny, with a high near 58.
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ABOUT THIS FORECAST

 
Point Forecast:
Big Sandy MT
 48.18°N 110.11°W (Elev. 2759 ft)
1:30 pm MST Nov 3, 2026
10pm MST Nov 3, 2026-6pm MST Nov 10, 2026
 
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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