Tracking Severe Thunderstorms and Excessive Rainfall in the Southern U.S.; Winter Storm to Impact the Northern U.S.

A storm system will shift from eastern Texas into the lower Mississippi Valley Monday with additional threats of severe thunderstorms and heavy to excessive rainfall which may bring flooding. A Flood Watch remains in effect. 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 Monday into Wednesday. Read More >

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fair

41°F

5°C

Humidity 53%
Wind Speed Calm
Barometer 29.94 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 24 Nov 12:15 am MST
Extended Forecast for

Lead SD

  • Overnight

    Overnight: Mostly cloudy, with a low around 32. Calm wind.

    Low: 32 °F

    Mostly Cloudy

  • Monday

    Monday: A chance of rain and snow after 5pm.  Partly sunny, with a high near 51. Calm wind becoming southwest around 6 mph in the afternoon. Winds could gust as high as 18 mph.  Chance of precipitation is 30%.

    High: 51 °F

    Partly Sunny
    then Chance
    Rain/Snow

  • Monday Night

    Monday Night: Snow likely, mainly between 8pm and 11pm.  Mostly cloudy, with a low around 19. Wind chill values as low as 3. Breezy, with a west wind 8 to 18 mph increasing to 18 to 28 mph after midnight. Winds could gust as high as 45 mph.  Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    Low: 19 °F

    Snow Likely
    and Breezy

  • Tuesday

    Tuesday: A 50 percent chance of snow, mainly before 11am.  Mostly cloudy, then gradually becoming sunny, with a high near 25. Wind chill values as low as 2. Blustery, with a northwest wind 19 to 24 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
    then Slight
    Chance Snow

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 16. West wind 6 to 8 mph, with gusts as high as 20 mph.

    Low: 16 °F

    Mostly Clear

  • Wednesday

    Wednesday: Partly sunny, with a high near 32. West wind around 5 mph becoming light and variable  in the afternoon.

    High: 32 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 21. Calm wind.

    Low: 21 °F

    Mostly Cloudy

  • Thanksgiving Day

    Thanksgiving Day: A slight chance of snow after 11am.  Mostly cloudy, with a high near 36. Calm wind becoming east around 5 mph.

    High: 36 °F

    Slight Chance
    Snow

  • Thursday Night

    Thursday Night: A slight chance of snow.  Mostly cloudy, with a low around 22.

    Low: 22 °F

    Slight Chance
    Snow

Detailed Forecast

Overnight
Mostly cloudy, with a low around 32. Calm wind.
Monday
A chance of rain and snow after 5pm. Partly sunny, with a high near 51. Calm wind becoming southwest around 6 mph in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 30%.
Monday Night
Snow likely, mainly between 8pm and 11pm. Mostly cloudy, with a low around 19. Wind chill values as low as 3. Breezy, with a west wind 8 to 18 mph increasing to 18 to 28 mph after midnight. Winds could gust as high as 45 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Tuesday
A 50 percent chance of snow, mainly before 11am. Mostly cloudy, then gradually becoming sunny, with a high near 25. Wind chill values as low as 2. Blustery, with a northwest wind 19 to 24 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
Mostly clear, with a low around 16. West wind 6 to 8 mph, with gusts as high as 20 mph.
Wednesday
Partly sunny, with a high near 32. West wind around 5 mph becoming light and variable in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 21. Calm wind.
Thanksgiving Day
A slight chance of snow after 11am. Mostly cloudy, with a high near 36. Calm wind becoming east around 5 mph.
Thursday Night
A slight chance of snow. Mostly cloudy, with a low around 22.
Friday
A chance of snow, mainly after 11am. Mostly cloudy, with a high near 32.
Friday Night
Snow likely. Mostly cloudy, with a low around 15.
Saturday
Snow likely. Mostly cloudy, with a high near 23.
Saturday Night
Snow likely. Mostly cloudy, with a low around 7.
Sunday
Snow likely. Mostly cloudy, with a high near 14.
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ABOUT THIS FORECAST

 
Point Forecast:
Lead SD
 44.35°N 103.77°W (Elev. 5322 ft)
12:32 am MST Nov 24, 2025
12am 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