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

27°C

81°F

Humidity 39%
Wind Speed Calm
Barometer 29.98 in
Dewpoint 12°C (54°F)
Visibility 16 km
Heat Index27°C (81°F)
Last update 19 Jul 9:35 pm MDT
Extended Forecast for

6 Miles SE Lead SD

  • Tonight

    Tonight: Mostly clear, with a low around 16. Calm wind.

    Low: 16 °C

    Mostly Clear

  • Monday

    Monday: Areas of smoke. Sunny, with a high near 31. Calm wind becoming north 5 to 10 km/h in the morning. Winds could gust as high as 27 km/h.

    High: 31 °C

    Areas Smoke

  • Monday Night

    Monday Night: Areas of smoke. Partly cloudy, with a low around 13. North wind 5 to 10 km/h becoming calm in the evening. Winds could gust as high as 29 km/h.

    Low: 13 °C

    Areas Smoke

  • Tuesday

    Tuesday: Mostly sunny, with a high near 26. Calm wind becoming east 5 to 10 km/h in the morning. Winds could gust as high as 29 km/h.

    High: 26 °C

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 12. South wind 5 to 10 km/h, with gusts as high as 29 km/h. Chance of precipitation is 70%.

    Low: 12 °C

    Mostly Cloudy
    then Showers
    Likely

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 26. South wind 8 to 10 km/h, with gusts as high as 32 km/h. Chance of precipitation is 70%.

    High: 26 °C

    Showers
    Likely then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 13.

    Low: 13 °C

    Chance
    T-storms

  • Thursday

    Thursday: A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 24.

    High: 24 °C

    Showers
    Likely

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 12.

    Low: 12 °C

    Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 16. Calm wind.
Monday
Areas of smoke. Sunny, with a high near 31. Calm wind becoming north 5 to 10 km/h in the morning. Winds could gust as high as 27 km/h.
Monday Night
Areas of smoke. Partly cloudy, with a low around 13. North wind 5 to 10 km/h becoming calm in the evening. Winds could gust as high as 29 km/h.
Tuesday
Mostly sunny, with a high near 26. Calm wind becoming east 5 to 10 km/h in the morning. Winds could gust as high as 29 km/h.
Tuesday Night
Showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 12. South wind 5 to 10 km/h, with gusts as high as 29 km/h. Chance of precipitation is 70%.
Wednesday
Showers likely and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 26. South wind 8 to 10 km/h, with gusts as high as 32 km/h. Chance of precipitation is 70%.
Wednesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 13.
Thursday
A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 24.
Thursday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 12.
Friday
A slight chance of showers and thunderstorms after noon. Sunny, with a high near 28.
Friday Night
Partly cloudy, with a low around 16.
Saturday
A slight chance of showers and thunderstorms. Sunny, with a high near 32.
Saturday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 17.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 32.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SE Lead SD
 44.31°N 103.68°W (Elev. 5495 m)
Last Update:
9:07 pm MDT Jul 19, 2026
Forecast Valid:
9pm MDT Jul 19, 2026-6pm MDT Jul 26, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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