Heavy Rain in the Southern U.S.; Winter Storm to Impact the Northern Mid-Atlantic and Interior Northeast

A storm system stretching from the Tennessee Valley to the Gulf Coast will bring a variety of hazards to the Eastern U.S. through Tuesday. On the south side of the system, heavy rain and thunderstorms will persist across the Southern U.S. Further north, a wintry precipitation mix is expected from the Central Appalachians to the interior Northeast through Tuesday. Read More >

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fair

30°F

-1°C

Humidity 47%
Wind Speed W 12 G 17 mph
Barometer 29.82 in
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Wind Chill20°F (-7°C)
Last update 1 Dec 7:55 pm MST
Extended Forecast for

4 Miles WSW Lead SD

  • Tonight

    Tonight: A 20 percent chance of snow after 3am.  Mostly cloudy, with a low around 16. Wind chill values as low as 3. West wind 11 to 13 mph, with gusts as high as 26 mph.

    Low: 16 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Tuesday

    Tuesday: A 50 percent chance of snow, mainly after 8am.  Patchy freezing fog after 11am. Mostly cloudy, with a high near 28. Wind chill values as low as 6. West wind around 10 mph, with gusts as high as 26 mph.  New snow accumulation of around an inch possible.

    High: 28 °F

    Chance Snow
    and Patchy
    Freezing Fog

  • Tuesday Night

    Tuesday Night: Snow.  Patchy freezing fog before 11pm. Low around 6. Wind chill values as low as -9. Northwest wind around 14 mph, with gusts as high as 25 mph.  Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.

    Low: 6 °F

    Snow and
    Patchy
    Freezing Fog

  • Wednesday

    Wednesday: A 50 percent chance of snow, mainly before 11am.  Partly sunny, with a high near 15. Wind chill values as low as -9. Northwest wind 5 to 9 mph, with gusts as high as 20 mph.  New snow accumulation of less than one inch possible.

    High: 15 °F

    Chance Snow
    then Slight
    Chance Snow

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a temperature rising to around 15 by 2am. Southwest wind 6 to 13 mph, with gusts as high as 22 mph.

    Low: 8 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 28. West wind 9 to 11 mph, with gusts as high as 23 mph.

    High: 28 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A 40 percent chance of snow, mainly after 11pm.  Mostly cloudy, with a low around 19. West wind 10 to 17 mph, with gusts as high as 29 mph.

    Low: 19 °F

    Chance Snow

  • Friday

    Friday: A chance of snow.  Mostly cloudy, with a high near 28. West wind 10 to 16 mph, with gusts as high as 30 mph.

    High: 28 °F

    Chance Snow

  • Friday Night

    Friday Night: Snow likely, mainly after 11pm.  Mostly cloudy, with a low around 16.

    Low: 16 °F

    Snow Likely

Detailed Forecast

Tonight
A 20 percent chance of snow after 3am. Mostly cloudy, with a low around 16. Wind chill values as low as 3. West wind 11 to 13 mph, with gusts as high as 26 mph.
Tuesday
A 50 percent chance of snow, mainly after 8am. Patchy freezing fog after 11am. Mostly cloudy, with a high near 28. Wind chill values as low as 6. West wind around 10 mph, with gusts as high as 26 mph. New snow accumulation of around an inch possible.
Tuesday Night
Snow. Patchy freezing fog before 11pm. Low around 6. Wind chill values as low as -9. Northwest wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.
Wednesday
A 50 percent chance of snow, mainly before 11am. Partly sunny, with a high near 15. Wind chill values as low as -9. Northwest wind 5 to 9 mph, with gusts as high as 20 mph. New snow accumulation of less than one inch possible.
Wednesday Night
Partly cloudy, with a temperature rising to around 15 by 2am. Southwest wind 6 to 13 mph, with gusts as high as 22 mph.
Thursday
Partly sunny, with a high near 28. West wind 9 to 11 mph, with gusts as high as 23 mph.
Thursday Night
A 40 percent chance of snow, mainly after 11pm. Mostly cloudy, with a low around 19. West wind 10 to 17 mph, with gusts as high as 29 mph.
Friday
A chance of snow. Mostly cloudy, with a high near 28. West wind 10 to 16 mph, with gusts as high as 30 mph.
Friday Night
Snow likely, mainly after 11pm. Mostly cloudy, with a low around 16.
Saturday
A chance of snow. Mostly cloudy, with a high near 27.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 13.
Sunday
A slight chance of snow. Mostly sunny, with a high near 30.
Sunday Night
A slight chance of snow. Partly cloudy, with a low around 21.
Monday
A slight chance of snow. Mostly sunny, with a high near 31.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Lead SD
 44.33°N 103.83°W (Elev. 6398 ft)
6:37 pm MST Dec 1, 2025
8pm MST Dec 1, 2025-6pm MST Dec 8, 2025
 
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Additional Resources

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Hourly Weather Forecast

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