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

52°F

11°C

Humidity 100%
Wind Speed SW 6 mph
Barometer 30.07 in
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 19 Aug 3:15 am MDT
Extended Forecast for

Lead SD

  • Overnight

    Overnight: Mostly clear, with a low around 52. Calm wind.

    Low: 52 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 80. Calm wind becoming northwest around 6 mph in the morning. Winds could gust as high as 18 mph.

    High: 80 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 57. Light and variable wind. Winds could gust as high as 16 mph.

    Low: 57 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 87. Calm wind becoming north around 5 mph. Winds could gust as high as 18 mph.

    High: 87 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 60. Light and variable wind. Winds could gust as high as 15 mph.

    Low: 60 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 88. Calm wind becoming north around 5 mph in the afternoon. Winds could gust as high as 17 mph.

    High: 88 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 61.

    Low: 61 °F

    Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Overnight
Mostly clear, with a low around 52. Calm wind.
Wednesday
Sunny, with a high near 80. Calm wind becoming northwest around 6 mph in the morning. Winds could gust as high as 18 mph.
Wednesday Night
Mostly clear, with a low around 57. Light and variable wind. Winds could gust as high as 16 mph.
Thursday
Sunny, with a high near 87. Calm wind becoming north around 5 mph. Winds could gust as high as 18 mph.
Thursday Night
Mostly clear, with a low around 60. Light and variable wind. Winds could gust as high as 15 mph.
Friday
Sunny, with a high near 88. 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 57.
Saturday
Mostly sunny, with a high near 82.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 61.
Sunday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 86.
Sunday Night
A chance of showers and thunderstorms. Mostly clear, with a low around 59.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 83.
Monday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 57.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lead SD
 44.35°N 103.74°W (Elev. 5000 ft)
Last Update:
2:31 am MDT Aug 19, 2026
Forecast Valid:
3am MDT Aug 19, 2026-6pm MDT Aug 25, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation