National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

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.

Overcast

37°F

3°C

Humidity 100%
Wind Speed Calm
Barometer 30.06 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 22 Mar 12:15 am MDT
Extended Forecast for

Belle Fourche SD

  • Overnight

    Overnight: A 40 percent chance of showers. Cloudy, with a low around 35. Northwest wind 5 to 8 mph, with gusts as high as 16 mph.

    Low: 35 °F

    Chance
    Showers

  • Sunday

    Sunday: A 30 percent chance of showers before 9am. Cloudy through mid morning, then gradual clearing, with a high near 59. West wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 26 mph.

    High: 59 °F

    Chance
    Showers then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 31. Northwest wind 9 to 14 mph becoming light and variable after midnight. Winds could gust as high as 23 mph.

    Low: 31 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 67. Calm wind becoming northeast 5 to 9 mph in the afternoon. Winds could gust as high as 16 mph.

    High: 67 °F

    Partly Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 35. Northeast wind 5 to 9 mph becoming southeast in the evening. Winds could gust as high as 16 mph.

    Low: 35 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 64. Northeast wind 6 to 11 mph, with gusts as high as 18 mph.

    High: 64 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 41. East wind 6 to 11 mph becoming southwest after midnight. Winds could gust as high as 16 mph.

    Low: 41 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 78. Southwest wind 6 to 14 mph becoming northeast in the afternoon. Winds could gust as high as 20 mph.

    High: 78 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 40 percent chance of showers. Cloudy, with a low around 35. Northwest wind 5 to 8 mph, with gusts as high as 16 mph.
Sunday
A 30 percent chance of showers before 9am. Cloudy through mid morning, then gradual clearing, with a high near 59. West wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 26 mph.
Sunday Night
Partly cloudy, with a low around 31. Northwest wind 9 to 14 mph becoming light and variable after midnight. Winds could gust as high as 23 mph.
Monday
Partly sunny, with a high near 67. Calm wind becoming northeast 5 to 9 mph in the afternoon. Winds could gust as high as 16 mph.
Monday Night
Increasing clouds, with a low around 35. Northeast wind 5 to 9 mph becoming southeast in the evening. Winds could gust as high as 16 mph.
Tuesday
Mostly cloudy, with a high near 64. Northeast wind 6 to 11 mph, with gusts as high as 18 mph.
Tuesday Night
Mostly cloudy, with a low around 41. East wind 6 to 11 mph becoming southwest after midnight. Winds could gust as high as 16 mph.
Wednesday
Mostly sunny, with a high near 78. Southwest wind 6 to 14 mph becoming northeast in the afternoon. Winds could gust as high as 20 mph.
Wednesday Night
Mostly cloudy, with a low around 36.
Thursday
Partly sunny, with a high near 50. Breezy.
Thursday Night
Mostly cloudy, with a low around 27.
Friday
Mostly sunny, with a high near 53.
Friday Night
Partly cloudy, with a low around 28.
Saturday
Partly sunny, with a high near 61.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Belle Fourche SD
 44.67°N 103.86°W (Elev. 3025 ft)
Last Update:
9:48 pm MDT Mar 21, 2026
Forecast Valid:
12am MDT Mar 22, 2026-6pm MDT Mar 28, 2026
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation