Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

Current conditions at

Spearfish / Clyde Ice (KSPF)

Lat: 44.48°NLon: 103.78°WElev: 3898ft.

39°F

4°C

Humidity 56%
Wind Speed W 16 mph
Barometer 30.01 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 7 Dec 11:55 am MST
Extended Forecast for

Belle Fourche SD

  • Today

    Today: Mostly sunny, with a high near 40. West wind 14 to 17 mph, with gusts as high as 29 mph.

    High: 40 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 24. Southwest wind 8 to 11 mph, with gusts as high as 20 mph.

    Low: 24 °F

    Increasing
    Clouds

  • Monday

    Monday: Mostly sunny, with a high near 46. Breezy, with a west wind 16 to 22 mph, with gusts as high as 34 mph.

    High: 46 °F

    Mostly Sunny
    and Breezy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 31. Breezy, with a southwest wind 13 to 21 mph, with gusts as high as 30 mph.

    Low: 31 °F

    Mostly Cloudy
    then Cloudy
    and Breezy

  • Tuesday

    Tuesday: A 40 percent chance of rain, mainly before 5pm.  Partly sunny, with a high near 53. Windy, with a northwest wind 25 to 32 mph, with gusts as high as 49 mph.

    High: 53 °F

    Chance Rain
    and Windy

  • Tuesday Night

    Tuesday Night: A slight chance of rain and snow before 8pm, then a chance of snow.  Mostly cloudy, with a low around 26. Breezy, with a west wind 17 to 22 mph decreasing to 11 to 16 mph after midnight. Winds could gust as high as 36 mph.  Chance of precipitation is 30%.

    Low: 26 °F

    Chance
    Rain/Snow and
    Breezy then
    Chance Snow

  • Wednesday

    Wednesday: A chance of snow before 10am, then rain and snow likely between 10am and 3pm, then rain likely after 3pm.  Mostly cloudy, with a high near 39. Southwest wind 8 to 11 mph becoming east in the afternoon. Winds could gust as high as 20 mph.  Chance of precipitation is 60%.

    High: 39 °F

    Rain/Snow
    Likely

  • Wednesday Night

    Wednesday Night: Rain before 7pm, then rain and snow between 7pm and 11pm, then snow likely after 11pm.  Mostly cloudy, with a low around 17. West wind 11 to 15 mph, with gusts as high as 22 mph.

    Low: 17 °F

    Rain/Snow
    then Snow
    Likely

  • Thursday

    Thursday: A chance of snow.  Mostly cloudy, with a high near 25.

    High: 25 °F

    Chance Snow

Detailed Forecast

Today
Mostly sunny, with a high near 40. West wind 14 to 17 mph, with gusts as high as 29 mph.
Tonight
Increasing clouds, with a low around 24. Southwest wind 8 to 11 mph, with gusts as high as 20 mph.
Monday
Mostly sunny, with a high near 46. Breezy, with a west wind 16 to 22 mph, with gusts as high as 34 mph.
Monday Night
Mostly cloudy, with a low around 31. Breezy, with a southwest wind 13 to 21 mph, with gusts as high as 30 mph.
Tuesday
A 40 percent chance of rain, mainly before 5pm. Partly sunny, with a high near 53. Windy, with a northwest wind 25 to 32 mph, with gusts as high as 49 mph.
Tuesday Night
A slight chance of rain and snow before 8pm, then a chance of snow. Mostly cloudy, with a low around 26. Breezy, with a west wind 17 to 22 mph decreasing to 11 to 16 mph after midnight. Winds could gust as high as 36 mph. Chance of precipitation is 30%.
Wednesday
A chance of snow before 10am, then rain and snow likely between 10am and 3pm, then rain likely after 3pm. Mostly cloudy, with a high near 39. Southwest wind 8 to 11 mph becoming east in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 60%.
Wednesday Night
Rain before 7pm, then rain and snow between 7pm and 11pm, then snow likely after 11pm. Mostly cloudy, with a low around 17. West wind 11 to 15 mph, with gusts as high as 22 mph.
Thursday
A chance of snow. Mostly cloudy, with a high near 25.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 2.
Friday
A chance of snow. Mostly cloudy, with a high near 14.
Friday Night
A chance of snow. Mostly cloudy, with a low around 2.
Saturday
A slight chance of snow. Partly sunny, with a high near 27.
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ABOUT THIS FORECAST

 
Point Forecast:
Belle Fourche SD
 44.67°N 103.86°W (Elev. 3025 ft)
9:17 am MST Dec 7, 2025
11am MST Dec 7, 2025-6pm MST Dec 13, 2025
 
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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