Severe Thunderstorms and Heavy Rain in the Southern U.S.; Snow in the Northern Rockies and Northern Plains

A storm system will shift from eastern Texas into the lower Mississippi Valley today with additional threats of severe thunderstorms and heavy to excessive rainfall which may bring flooding. In the northern U.S., a storm will bring heavy snow and gusty winds over parts of the northern Rockies, northern Plains, and Upper Midwest today into Wednesday. Read More >

Hazardous Weather Conditions

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fair

52°F

11°C

Humidity 38%
Wind Speed E 8 G 14 mph
Barometer 29.90 in
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill49°F (9°C)
Last update 24 Nov 10:35 am MST
Extended Forecast for

Lead SD

  • Today

    Today: A 10 percent chance of snow after 5pm.  Partly sunny, with a high near 50. Southwest wind 3 to 6 mph. Winds could gust as high as 16 mph.

    High: 50 °F

    Partly Sunny
    then Slight
    Chance Snow

  • Tonight

    Tonight: Snow likely, mainly between 8pm and 11pm.  Mostly cloudy, with a low around 19. Wind chill values as low as 1. Breezy, with a west wind 8 to 13 mph increasing to 21 to 26 mph after midnight. Winds could gust as high as 44 mph.  Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    Low: 19 °F

    Breezy. Snow
    Likely then
    Chance Snow

  • Tuesday

    Tuesday: A 50 percent chance of snow.  Mostly cloudy, then gradually becoming sunny, with a high near 25. Wind chill values as low as 1. Blustery, with a northwest wind 18 to 23 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 41 mph.  New snow accumulation of less than one inch possible.

    High: 25 °F

    Chance Snow
    and Blustery

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 15. Wind chill values as low as 6. West wind 5 to 8 mph, with gusts as high as 20 mph.

    Low: 15 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 33. Light and variable wind becoming northwest around 5 mph.

    High: 33 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 20. Calm wind.

    Low: 20 °F

    Mostly Cloudy

  • Thanksgiving Day

    Thanksgiving Day: A 20 percent chance of snow after 11am.  Mostly cloudy, with a high near 33. Light and variable wind.

    High: 33 °F

    Slight Chance
    Snow

  • Thursday Night

    Thursday Night: A chance of snow.  Mostly cloudy, with a low around 21. Light and variable wind.

    Low: 21 °F

    Chance Snow

  • Friday

    Friday: A chance of snow.  Mostly cloudy, with a high near 35.

    High: 35 °F

    Chance Snow

Detailed Forecast

Today
A 10 percent chance of snow after 5pm. Partly sunny, with a high near 50. Southwest wind 3 to 6 mph. Winds could gust as high as 16 mph.
Tonight
Snow likely, mainly between 8pm and 11pm. Mostly cloudy, with a low around 19. Wind chill values as low as 1. Breezy, with a west wind 8 to 13 mph increasing to 21 to 26 mph after midnight. Winds could gust as high as 44 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Tuesday
A 50 percent chance of snow. Mostly cloudy, then gradually becoming sunny, with a high near 25. Wind chill values as low as 1. Blustery, with a northwest wind 18 to 23 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 41 mph. New snow accumulation of less than one inch possible.
Tuesday Night
Partly cloudy, with a low around 15. Wind chill values as low as 6. West wind 5 to 8 mph, with gusts as high as 20 mph.
Wednesday
Partly sunny, with a high near 33. Light and variable wind becoming northwest around 5 mph.
Wednesday Night
Mostly cloudy, with a low around 20. Calm wind.
Thanksgiving Day
A 20 percent chance of snow after 11am. Mostly cloudy, with a high near 33. Light and variable wind.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 21. Light and variable wind.
Friday
A chance of snow. Mostly cloudy, with a high near 35.
Friday Night
Snow likely. Mostly cloudy, with a low around 11.
Saturday
Snow likely. Mostly cloudy, with a high near 20.
Saturday Night
Snow likely. Mostly cloudy, with a low around 4.
Sunday
Snow likely. Partly sunny, with a high near 18.
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ABOUT THIS FORECAST

 
Point Forecast:
Lead SD
 44.33°N 103.77°W (Elev. 5197 ft)
9:57 am MST Nov 24, 2025
10am MST Nov 24, 2025-6pm MST Nov 30, 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