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Hazardous Weather Conditions

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fair

34°C

93°F

Humidity 26%
Wind Speed Calm
Barometer 29.95 in
Dewpoint 12°C (54°F)
Visibility 16 km
Heat Index33°C (91°F)
Last update 19 Jul 7:35 pm MDT
Extended Forecast for

3 Miles SW North Spearfish SD

Heat Advisory July 19, 07:45pm until July 19, 09:00pm
Click here for hazard details and duration
...
  •  
    Heat Advisory July 19, 07:45pm until July 19, 09:00pm

    NOW until 9:00pm Sun

    Heat Advisory

  • Tonight

    Low: 21 °C

    Slight Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: Areas of smoke. Sunny, with a high near 33. Light and variable wind becoming north 8 to 13 km/h in the morning. Winds could gust as high as 29 km/h.

    High: 33 °C

    Areas Smoke

  • Monday Night

    Monday Night: Areas of smoke. Partly cloudy, with a low around 18. North wind 9 to 14 km/h becoming light and variable in the evening. Winds could gust as high as 32 km/h.

    Low: 18 °C

    Areas Smoke

  • Tuesday

    Tuesday: Mostly sunny, with a high near 28. Light and variable wind becoming east 8 to 13 km/h in the morning. Winds could gust as high as 32 km/h.

    High: 28 °C

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 18. Southeast wind 5 to 13 km/h, with gusts as high as 32 km/h. Chance of precipitation is 60%.

    Low: 18 °C

    Mostly Cloudy
    then Showers
    Likely

  • Wednesday

    Wednesday: A chance of showers and thunderstorms before 9am, then a chance of showers between 9am and noon, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 29. Southeast wind 5 to 10 km/h, with gusts as high as 26 km/h. Chance of precipitation is 50%.

    High: 29 °C

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers and thunderstorms, mainly after midnight. Mostly cloudy, with a low around 18.

    Low: 18 °C

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after noon. Mostly cloudy, with a high near 28.

    High: 28 °C

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Tonight
A slight chance of showers and thunderstorms between 8pm and 10pm. Partly cloudy, with a low around 21. Calm wind. Chance of precipitation is 20%.
Monday
Areas of smoke. Sunny, with a high near 33. Light and variable wind becoming north 8 to 13 km/h in the morning. Winds could gust as high as 29 km/h.
Monday Night
Areas of smoke. Partly cloudy, with a low around 18. North wind 9 to 14 km/h becoming light and variable in the evening. Winds could gust as high as 32 km/h.
Tuesday
Mostly sunny, with a high near 28. Light and variable wind becoming east 8 to 13 km/h in the morning. Winds could gust as high as 32 km/h.
Tuesday Night
Showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 18. Southeast wind 5 to 13 km/h, with gusts as high as 32 km/h. Chance of precipitation is 60%.
Wednesday
A chance of showers and thunderstorms before 9am, then a chance of showers between 9am and noon, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 29. Southeast wind 5 to 10 km/h, with gusts as high as 26 km/h. Chance of precipitation is 50%.
Wednesday Night
A 50 percent chance of showers and thunderstorms, mainly after midnight. Mostly cloudy, with a low around 18.
Thursday
A chance of showers, with thunderstorms also possible after noon. Mostly cloudy, with a high near 28.
Thursday Night
A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 18.
Friday
Sunny, with a high near 32.
Friday Night
Mostly clear, with a low around 22.
Saturday
Sunny, with a high near 35.
Saturday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 23.
Sunday
A slight chance of showers and thunderstorms. Sunny, with a high near 35.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW North Spearfish SD
 44.47°N 103.94°W (Elev. 4386 m)
Last Update:
5:33 pm MDT Jul 19, 2026
Forecast Valid:
7pm 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