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

Spearfish / Clyde Ice (KSPF)

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

Fair

5°F

-15°C

Humidity 85%
Wind Speed Calm
Barometer 30.09 in
Dewpoint 1°F (-17°C)
Visibility 10.00 mi
Last update 30 Nov 6:55 pm MST
Extended Forecast for

Lead SD

  • Tonight

    Tonight: Partly cloudy, with a temperature rising to around 13 by 3am. Calm wind becoming west around 6 mph after midnight.

    Low: 9 °F⇑

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 26. Wind chill values as low as 4. West wind 7 to 10 mph, with gusts as high as 15 mph.

    High: 26 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a temperature falling to near 20 by 9pm, then rising to around 27 during the remainder of the night. Wind chill values as low as 12. West wind around 7 mph, with gusts as high as 20 mph.

    Low: 20 °F⇑

    Mostly Cloudy

  • Tuesday

    Tuesday: A 50 percent chance of snow, mainly after 11am. Mostly cloudy, with a high near 35. Wind chill values as low as 20. West wind 7 to 9 mph, with gusts as high as 22 mph. New snow accumulation of less than one inch possible.

    High: 35 °F

    Chance Snow

  • Tuesday Night

    Tuesday Night: Snow. Low around 13. Northwest wind around 10 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    Low: 13 °F

    Snow

  • Wednesday

    Wednesday: Snow likely, mainly before 11am. Cloudy, then gradually becoming mostly sunny, with a high near 21. Northwest wind 3 to 8 mph. Winds could gust as high as 22 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    High: 21 °F

    Snow Likely
    then Slight
    Chance Snow

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 10. Southwest wind 3 to 8 mph. Winds could gust as high as 22 mph.

    Low: 10 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 34. West wind around 9 mph, with gusts as high as 22 mph.

    High: 34 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of snow after 11pm. Mostly cloudy, with a low around 23.

    Low: 23 °F

    Chance Snow

Detailed Forecast

Tonight
Partly cloudy, with a temperature rising to around 13 by 3am. Calm wind becoming west around 6 mph after midnight.
Monday
Sunny, with a high near 26. Wind chill values as low as 4. West wind 7 to 10 mph, with gusts as high as 15 mph.
Monday Night
Mostly cloudy, with a temperature falling to near 20 by 9pm, then rising to around 27 during the remainder of the night. Wind chill values as low as 12. West wind around 7 mph, with gusts as high as 20 mph.
Tuesday
A 50 percent chance of snow, mainly after 11am. Mostly cloudy, with a high near 35. Wind chill values as low as 20. West wind 7 to 9 mph, with gusts as high as 22 mph. New snow accumulation of less than one inch possible.
Tuesday Night
Snow. Low around 13. Northwest wind around 10 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Wednesday
Snow likely, mainly before 11am. Cloudy, then gradually becoming mostly sunny, with a high near 21. Northwest wind 3 to 8 mph. Winds could gust as high as 22 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Wednesday Night
Mostly clear, with a low around 10. Southwest wind 3 to 8 mph. Winds could gust as high as 22 mph.
Thursday
Mostly sunny, with a high near 34. West wind around 9 mph, with gusts as high as 22 mph.
Thursday Night
A chance of snow after 11pm. Mostly cloudy, with a low around 23.
Friday
A chance of snow. Partly sunny, with a high near 34.
Friday Night
Snow likely. Mostly cloudy, with a low around 22.
Saturday
Snow likely. Mostly cloudy, with a high near 32.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 19.
Sunday
A slight chance of snow. Mostly sunny, with a high near 33.
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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:
6:22 pm MST Nov 30, 2025
Forecast Valid:
7pm MST Nov 30, 2025-6pm MST Dec 7, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation