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

68°F

20°C

Humidity 49%
Wind Speed Calm
Barometer 30.08 in
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 19 Aug 10:35 pm MDT
Extended Forecast for

3 Miles WSW Lead SD

  • Tonight

    Tonight: Mostly clear, with a low around 52. Calm wind becoming southwest around 5 mph after midnight.

    Low: 52 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 80. Calm wind becoming northwest around 5 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 80 °F

    Sunny

  • Thursday Night

    Thursday Night: Patchy smoke between 2am and 4am. Partly cloudy, with a low around 57. Light and variable wind becoming south around 5 mph. Winds could gust as high as 16 mph.

    Low: 57 °F

    Mostly Clear
    then Patchy
    Smoke

  • Friday

    Friday: Mostly sunny, with a high near 82. Calm wind becoming north around 5 mph in the afternoon. Winds could gust as high as 17 mph.

    High: 82 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 53. Northeast wind around 5 mph becoming calm in the evening. Winds could gust as high as 16 mph.

    Low: 53 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 78. Calm wind becoming southeast 5 to 8 mph in the morning. Winds could gust as high as 23 mph.

    High: 78 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 58.

    Low: 58 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 57.

    Low: 57 °F

    Chance
    T-storms then
    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 52. Calm wind becoming southwest around 5 mph after midnight.
Thursday
Sunny, with a high near 80. Calm wind becoming northwest around 5 mph in the afternoon. Winds could gust as high as 18 mph.
Thursday Night
Patchy smoke between 2am and 4am. Partly cloudy, with a low around 57. Light and variable wind becoming south around 5 mph. Winds could gust as high as 16 mph.
Friday
Mostly sunny, with a high near 82. Calm wind becoming north around 5 mph in the afternoon. Winds could gust as high as 17 mph.
Friday Night
Mostly clear, with a low around 53. Northeast wind around 5 mph becoming calm in the evening. Winds could gust as high as 16 mph.
Saturday
Mostly sunny, with a high near 78. Calm wind becoming southeast 5 to 8 mph in the morning. Winds could gust as high as 23 mph.
Saturday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 58.
Sunday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 81.
Sunday Night
A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 57.
Monday
A slight chance of showers and thunderstorms after noon. Sunny, with a high near 79.
Monday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 54.
Tuesday
A chance of showers and thunderstorms. Sunny, with a high near 78.
Tuesday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 54.
Wednesday
A chance of showers and thunderstorms. Sunny, with a high near 80.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Lead SD
 44.33°N 103.8°W (Elev. 5627 ft)
Last Update:
10:12 pm MDT Aug 19, 2026
Forecast Valid:
10pm MDT Aug 19, 2026-6pm MDT Aug 26, 2026
 
Forecast Discussion
 
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Additional Resources

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