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

Hazardous Weather Conditions

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fair and Breezy

1°F

-17°C

Humidity 60%
Wind Speed W 22 G 30 mph
Barometer 30.27 in
Dewpoint -9°F (-23°C)
Visibility 10.00 mi
Wind Chill-22°F (-30°C)
Last update 17 Jan 5:35 am MST
Extended Forecast for

4 Miles WSW Lead SD

  • Overnight

    Overnight: A chance of flurries. Areas of blowing snow. Mostly clear, with a low around -8. Wind chill values as low as -35. Blustery, with a northwest wind around 25 mph, with gusts as high as 39 mph.

    Low: -8 °F

    Chance
    Flurries and
    Areas Blowing
    Snow

  • Saturday

    Saturday: A chance of flurries before 7am. Patchy blowing snow before 8am. Sunny, with a high near 24. Wind chill values as low as -34. Blustery, with a northwest wind 11 to 20 mph, with gusts as high as 34 mph.

    High: 24 °F

    Chance
    Flurries and
    Patchy
    Blowing Snow
    then Sunny

  • Saturday Night

    Saturday Night: A 40 percent chance of snow, mainly after 2am. Increasing clouds, with a low around 14. Wind chill values as low as 1. Windy, with a northwest wind 16 to 21 mph increasing to 26 to 31 mph in the evening. Winds could gust as high as 45 mph. New snow accumulation of less than a half inch possible.

    Low: 14 °F

    Chance Snow
    and Windy

  • Sunday

    Sunday: Snow likely, mainly before 11am. Mostly cloudy, with a temperature falling to around 9 by 5pm. Wind chill values as low as -10. Windy, with a northwest wind 25 to 30 mph decreasing to 18 to 23 mph in the afternoon. Winds could gust as high as 45 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    High: 22 °F⇓

    Snow Likely
    and Windy
    then Chance
    Snow and
    Blustery

  • Sunday Night

    Sunday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 3. Northwest wind 14 to 17 mph, with gusts as high as 32 mph. New snow accumulation of less than a half inch possible.

    Low: 3 °F

    Chance Snow

  • M.L.King Day

    M.L.King Day: Partly sunny, with a high near 19. West wind 13 to 18 mph, with gusts as high as 33 mph.

    High: 19 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 14. West wind 13 to 16 mph, with gusts as high as 28 mph.

    Low: 14 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A slight chance of snow after 11am. Partly sunny, with a high near 32. West wind 16 to 18 mph, with gusts as high as 34 mph.

    High: 32 °F

    Slight Chance
    Snow

  • Tuesday Night

    Tuesday Night: A chance of snow. Mostly cloudy, with a low around 11. Blustery.

    Low: 11 °F

    Chance Snow
    and Blustery

Detailed Forecast

Overnight
A chance of flurries. Areas of blowing snow. Mostly clear, with a low around -8. Wind chill values as low as -35. Blustery, with a northwest wind around 25 mph, with gusts as high as 39 mph.
Saturday
A chance of flurries before 7am. Patchy blowing snow before 8am. Sunny, with a high near 24. Wind chill values as low as -34. Blustery, with a northwest wind 11 to 20 mph, with gusts as high as 34 mph.
Saturday Night
A 40 percent chance of snow, mainly after 2am. Increasing clouds, with a low around 14. Wind chill values as low as 1. Windy, with a northwest wind 16 to 21 mph increasing to 26 to 31 mph in the evening. Winds could gust as high as 45 mph. New snow accumulation of less than a half inch possible.
Sunday
Snow likely, mainly before 11am. Mostly cloudy, with a temperature falling to around 9 by 5pm. Wind chill values as low as -10. Windy, with a northwest wind 25 to 30 mph decreasing to 18 to 23 mph in the afternoon. Winds could gust as high as 45 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Sunday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 3. Northwest wind 14 to 17 mph, with gusts as high as 32 mph. New snow accumulation of less than a half inch possible.
M.L.King Day
Partly sunny, with a high near 19. West wind 13 to 18 mph, with gusts as high as 33 mph.
Monday Night
Mostly cloudy, with a low around 14. West wind 13 to 16 mph, with gusts as high as 28 mph.
Tuesday
A slight chance of snow after 11am. Partly sunny, with a high near 32. West wind 16 to 18 mph, with gusts as high as 34 mph.
Tuesday Night
A chance of snow. Mostly cloudy, with a low around 11. Blustery.
Wednesday
A chance of snow. Mostly cloudy, with a high near 18.
Wednesday Night
A slight chance of snow. Mostly cloudy, with a low around 4.
Thursday
A slight chance of snow. Partly sunny, with a high near 21.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 3.
Friday
A chance of snow. Mostly cloudy, with a high near 13.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Lead SD
 44.33°N 103.83°W (Elev. 6398 ft)
Last Update:
4:36 am MST Jan 17, 2026
Forecast Valid:
5am MST Jan 17, 2026-6pm MST Jan 23, 2026
 
Forecast Discussion
 
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