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

Excessive Rainfall Possible This Weekend; October Heat Wave in California

A slow moving front will be the focus area for heavy to excessive rainfall and a threat for flash/urban flooding across the northern Gulf Coast and Southeast U.S. through this weekend. Abnormally hot, potentially record-breaking, temperatures will impact southern California and stretch north toward the Bay Area and Central Valley into next week. Read More >

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fair

46°F

8°C

Humidity 71%
Wind Speed S 8 mph
Barometer 30.38 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 3 Oct 11:35 pm MDT
Extended Forecast for

Belle Fourche SD

  • Tonight

    Tonight: Mostly cloudy, with a low around 45. Calm wind.

    Low: 45 °F

    Mostly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 77. Light east wind increasing to 9 to 14 mph in the morning. Winds could gust as high as 23 mph.

    High: 77 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 47. East wind 6 to 11 mph becoming light and variable after midnight. Winds could gust as high as 21 mph.

    Low: 47 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 89. Calm wind becoming northwest 5 to 9 mph in the afternoon. Winds could gust as high as 23 mph.

    High: 89 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 53. Northwest wind around 7 mph becoming southwest in the evening.

    Low: 53 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 80. West wind 7 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 23 mph.

    High: 80 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 45. Calm wind.
Sunday
Sunny, with a high near 77. Light east wind increasing to 9 to 14 mph in the morning. Winds could gust as high as 23 mph.
Sunday Night
Mostly clear, with a low around 47. East wind 6 to 11 mph becoming light and variable after midnight. Winds could gust as high as 21 mph.
Monday
Sunny, with a high near 89. Calm wind becoming northwest 5 to 9 mph in the afternoon. Winds could gust as high as 23 mph.
Monday Night
Mostly clear, with a low around 53. Northwest wind around 7 mph becoming southwest in the evening.
Tuesday
Sunny, with a high near 80. West wind 7 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 23 mph.
Tuesday Night
Mostly clear, with a low around 49.
Wednesday
Sunny, with a high near 78.
Wednesday Night
Mostly clear, with a low around 49.
Thursday
Sunny, with a high near 74.
Thursday Night
Partly cloudy, with a low around 49.
Friday
Sunny, with a high near 79.
Friday Night
Mostly clear, with a low around 54.
Saturday
Mostly sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Belle Fourche SD
 44.67°N 103.86°W (Elev. 3025 ft)
Last Update:
9:26 pm MDT Oct 3, 2026
Forecast Valid:
11pm MDT Oct 3, 2026-6pm MDT Oct 10, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation