National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Tracking Weekend Storm Impacts

A storm and trailing cold front will continue to slowly move through the Gulf Coast and Southeast U.S. through this weekend with widespread rain showers and isolated thunderstorms. A fast-moving clipper storm may bring several inches of snow to the north-central Plains, Midwest, eastern Great Lakes, and Northeast regions this weekend. Read More >

Hazardous Weather Conditions

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Overcast

34°F

1°C

Humidity 93%
Wind Speed N 9 mph
Barometer 29.69 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 6 Dec 1:15 pm MST
Extended Forecast for

Lead SD

  • This Afternoon

    This Afternoon: A 40 percent chance of snow, mainly before 2pm. Cloudy, with a high near 34. Wind chill values as low as 17. Northwest wind around 8 mph, with gusts as high as 20 mph. Total daytime snow accumulation of around an inch possible.

    High: 34 °F

    Chance Snow

  • Tonight

    Tonight: Snow likely after 11pm. Cloudy, with a low around 16. Calm wind becoming west around 6 mph after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 16 °F

    Snow Likely

  • Sunday

    Sunday: A 50 percent chance of snow before 11am. Partly sunny, with a high near 34. Wind chill values as low as 17. West wind 7 to 10 mph, with gusts as high as 24 mph. New snow accumulation of less than a half inch possible.

    High: 34 °F

    Chance Snow
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 24. West wind 6 to 8 mph, with gusts as high as 21 mph.

    Low: 24 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 40. West wind around 10 mph, with gusts as high as 28 mph.

    High: 40 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a temperature rising to around 39 by 5am. West wind 8 to 13 mph, with gusts as high as 31 mph.

    Low: 34 °F⇑

    Mostly Cloudy

  • Tuesday

    Tuesday: Rain likely before 2pm, then rain and snow likely between 2pm and 4pm, then snow likely after 4pm. Mostly cloudy, with a high near 45. West wind 14 to 16 mph, with gusts as high as 38 mph. Chance of precipitation is 70%.

    High: 45 °F

    Rain Likely
    then
    Rain/Snow
    Likely

  • Tuesday Night

    Tuesday Night: A chance of snow. Mostly cloudy, with a low around 26. Northwest wind 10 to 16 mph, with gusts as high as 39 mph.

    Low: 26 °F

    Chance Snow

  • Wednesday

    Wednesday: A chance of snow. Mostly cloudy, with a high near 38.

    High: 38 °F

    Chance Snow

Detailed Forecast

This Afternoon
A 40 percent chance of snow, mainly before 2pm. Cloudy, with a high near 34. Wind chill values as low as 17. Northwest wind around 8 mph, with gusts as high as 20 mph. Total daytime snow accumulation of around an inch possible.
Tonight
Snow likely after 11pm. Cloudy, with a low around 16. Calm wind becoming west around 6 mph after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Sunday
A 50 percent chance of snow before 11am. Partly sunny, with a high near 34. Wind chill values as low as 17. West wind 7 to 10 mph, with gusts as high as 24 mph. New snow accumulation of less than a half inch possible.
Sunday Night
Partly cloudy, with a low around 24. West wind 6 to 8 mph, with gusts as high as 21 mph.
Monday
Mostly sunny, with a high near 40. West wind around 10 mph, with gusts as high as 28 mph.
Monday Night
Mostly cloudy, with a temperature rising to around 39 by 5am. West wind 8 to 13 mph, with gusts as high as 31 mph.
Tuesday
Rain likely before 2pm, then rain and snow likely between 2pm and 4pm, then snow likely after 4pm. Mostly cloudy, with a high near 45. West wind 14 to 16 mph, with gusts as high as 38 mph. Chance of precipitation is 70%.
Tuesday Night
A chance of snow. Mostly cloudy, with a low around 26. Northwest wind 10 to 16 mph, with gusts as high as 39 mph.
Wednesday
A chance of snow. Mostly cloudy, with a high near 38.
Wednesday Night
Snow likely. Mostly cloudy, with a low around 25.
Thursday
Snow likely. Mostly cloudy, with a high near 30.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 14.
Friday
A chance of snow. Mostly cloudy, with a high near 28.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lead SD
 44.35°N 103.77°W (Elev. 5322 ft)
Last Update:
12:32 pm MST Dec 6, 2025
Forecast Valid:
1pm MST Dec 6, 2025-6pm MST Dec 12, 2025
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation