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

59°F

15°C

Humidity 27%
Wind Speed W 12 mph
Barometer 29.88 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 21 Mar 5:15 am MDT
Extended Forecast for

Spearfish SD

Red Flag Warning March 21, 05:27am until March 21, 09:00pm
Click here for hazard details and duration
Red Flag Warning
  •  
    Red Flag Warning March 21, 05:27am until March 21, 09:00pm

    NOW until 9:00pm Sat

    Red Flag Warning

  • Today

    High: 86 °F

    Sunny

  • Tonight

    Tonight: A 50 percent chance of rain, mainly after midnight.  Increasing clouds, with a low around 41. Southeast wind 13 to 18 mph becoming light and variable  after midnight. Winds could gust as high as 25 mph.

    Low: 41 °F

    Slight Chance
    Rain then
    Chance Rain

  • Sunday

    Sunday: A 40 percent chance of rain before noon.  Mostly cloudy, then gradually becoming sunny, with a high near 57. Light northwest wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 22 mph.

    High: 57 °F

    Chance Rain
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 36. Northwest wind 5 to 10 mph becoming light and variable  in the evening. Winds could gust as high as 20 mph.

    Low: 36 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 62. Calm wind becoming northeast 5 to 7 mph in the afternoon.

    High: 62 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 40. Northeast wind 5 to 7 mph becoming calm  in the evening.

    Low: 40 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 64. Light and variable wind becoming northeast 6 to 11 mph in the morning. Winds could gust as high as 21 mph.

    High: 64 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 45. East wind 6 to 10 mph becoming west after midnight. Winds could gust as high as 20 mph.

    Low: 45 °F

    Mostly Cloudy

Detailed Forecast

Today
Sunny, with a high near 86. Southwest wind 8 to 17 mph becoming north in the morning. Winds could gust as high as 24 mph.
Tonight
A 50 percent chance of rain, mainly after midnight. Increasing clouds, with a low around 41. Southeast wind 13 to 18 mph becoming light and variable after midnight. Winds could gust as high as 25 mph.
Sunday
A 40 percent chance of rain before noon. Mostly cloudy, then gradually becoming sunny, with a high near 57. Light northwest wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 22 mph.
Sunday Night
Partly cloudy, with a low around 36. Northwest wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 20 mph.
Monday
Partly sunny, with a high near 62. Calm wind becoming northeast 5 to 7 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 40. Northeast wind 5 to 7 mph becoming calm in the evening.
Tuesday
Mostly cloudy, with a high near 64. Light and variable wind becoming northeast 6 to 11 mph in the morning. Winds could gust as high as 21 mph.
Tuesday Night
Mostly cloudy, with a low around 45. East wind 6 to 10 mph becoming west after midnight. Winds could gust as high as 20 mph.
Wednesday
Partly sunny, with a high near 71.
Wednesday Night
A slight chance of rain before midnight, then a slight chance of rain and snow. Mostly cloudy, with a low around 38.
Thursday
A slight chance of rain and snow. Partly sunny, with a high near 53. Breezy.
Thursday Night
A slight chance of snow. Mostly cloudy, with a low around 31.
Friday
Partly sunny, with a high near 54.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Spearfish SD
 44.5°N 103.85°W (Elev. 3911 ft)
3:48 am MDT Mar 21, 2026
5am MDT Mar 21, 2026-6pm MDT Mar 27, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database