Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fair

57°F

14°C

Humidity 31%
Wind Speed W 9 mph
Barometer 29.89 in
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Last update 21 Mar 3:15 am MDT
Extended Forecast for

9 Miles SW North Spearfish SD

Red Flag Warning March 21, 03:37am until March 21, 09:00pm
Click here for hazard details and duration
Red Flag Warning
  •  
    Red Flag Warning March 21, 03:37am until March 21, 09:00pm

    NOW until 9:00pm Sat

    Red Flag Warning

  • Overnight

    Low: 46 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 79. Southwest wind 6 to 11 mph becoming west in the afternoon. Winds could gust as high as 23 mph.

    High: 79 °F

    Sunny

  • Saturday Night

    Saturday Night: A chance of rain before 2am, then a chance of rain and snow between 2am and 5am, then a chance of snow after 5am.  Mostly cloudy, with a low around 37. South wind 8 to 13 mph becoming light and variable  after midnight. Winds could gust as high as 23 mph.  Chance of precipitation is 50%. Little or no snow accumulation expected.

    Low: 37 °F

    Slight Chance
    Rain then
    Chance
    Rain/Snow

  • Sunday

    Sunday: A chance of snow before 11am, then a chance of rain between 11am and noon.  Mostly cloudy, then gradually becoming sunny, with a high near 51. Calm wind becoming west 5 to 7 mph in the morning. Winds could gust as high as 21 mph.  Chance of precipitation is 40%. Little or no snow accumulation expected.

    High: 51 °F

    Chance
    Rain/Snow
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 33. Northwest wind around 6 mph becoming light and variable  in the evening. Winds could gust as high as 18 mph.

    Low: 33 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 58. Calm wind becoming northeast around 5 mph in the afternoon. Winds could gust as high as 15 mph.

    High: 58 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 38. Northeast wind around 5 mph becoming calm  in the evening.

    Low: 38 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 59. Calm wind becoming northwest around 6 mph in the morning. Winds could gust as high as 18 mph.

    High: 59 °F

    Partly Sunny

Detailed Forecast

Overnight
Mostly clear, with a low around 46. Southwest wind around 6 mph, with gusts as high as 18 mph.
Saturday
Sunny, with a high near 79. Southwest wind 6 to 11 mph becoming west in the afternoon. Winds could gust as high as 23 mph.
Saturday Night
A chance of rain before 2am, then a chance of rain and snow between 2am and 5am, then a chance of snow after 5am. Mostly cloudy, with a low around 37. South wind 8 to 13 mph becoming light and variable after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Sunday
A chance of snow before 11am, then a chance of rain between 11am and noon. Mostly cloudy, then gradually becoming sunny, with a high near 51. Calm wind becoming west 5 to 7 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Sunday Night
Partly cloudy, with a low around 33. Northwest wind around 6 mph becoming light and variable in the evening. Winds could gust as high as 18 mph.
Monday
Mostly sunny, with a high near 58. Calm wind becoming northeast around 5 mph in the afternoon. Winds could gust as high as 15 mph.
Monday Night
Mostly cloudy, with a low around 38. Northeast wind around 5 mph becoming calm in the evening.
Tuesday
Partly sunny, with a high near 59. Calm wind becoming northwest around 6 mph in the morning. Winds could gust as high as 18 mph.
Tuesday Night
Mostly cloudy, with a low around 43.
Wednesday
Partly sunny, with a high near 66.
Wednesday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 34.
Thursday
A chance of snow. Partly sunny, with a high near 49.
Thursday Night
A slight chance of snow. Mostly cloudy, with a low around 27.
Friday
Partly sunny, with a high near 48.
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles SW North Spearfish SD
 44.41°N 104.02°W (Elev. 5600 ft)
12:32 am MDT Mar 21, 2026
3am MDT Mar 21, 2026-6pm MDT Mar 27, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database