Showers and Thunderstorms for the Eastern Third of the Country; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

Showers and thunderstorms will continue along and ahead of a cold front for the eastern third of the country. The rainfall for the Great Lakes region could prolong the ongoing flooding. Much cooler weather will filter in behind this cold front along and east of the Rockies. Where the rain is needed, the Southern High Plains, critical fire weather concerns through this weekend. Read More >

Hazardous Weather Conditions

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Partly Cloudy

48°F

9°C

Humidity 37%
Wind Speed NW 13 mph
Barometer 30.09 in
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 18 Apr 6:15 pm MDT
Extended Forecast for

Belle Fourche SD

  • Tonight

    Tonight: Mostly clear, with a low around 27. Blustery, with a northwest wind 16 to 21 mph becoming light southwest  after midnight. Winds could gust as high as 32 mph.

    Low: 27 °F

    Mostly Clear
    and Blustery
    then Mostly
    Clear

  • Sunday

    Sunday: Sunny, with a high near 61. Light and variable wind becoming east 10 to 15 mph in the morning. Winds could gust as high as 21 mph.

    High: 61 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 32. East wind 5 to 14 mph becoming southwest after midnight. Winds could gust as high as 21 mph.

    Low: 32 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 77. Southwest wind 5 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 21 mph.

    High: 77 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 41. Northwest wind 6 to 11 mph becoming light and variable. Winds could gust as high as 18 mph.

    Low: 41 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 82. South wind 5 to 9 mph becoming east in the morning. Winds could gust as high as 17 mph.

    High: 82 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 52. East wind 7 to 10 mph becoming south after midnight. Winds could gust as high as 16 mph.

    Low: 52 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers after noon.  Partly sunny, with a high near 84. Breezy, with a southwest wind 7 to 12 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 32 mph.

    High: 84 °F

    Partly Sunny
    then Slight
    Chance
    Showers and
    Breezy

  • Wednesday Night

    Wednesday Night: A chance of showers.  Mostly cloudy, with a low around 41. Breezy.

    Low: 41 °F

    Chance
    Showers and
    Breezy

Detailed Forecast

Tonight
Mostly clear, with a low around 27. Blustery, with a northwest wind 16 to 21 mph becoming light southwest after midnight. Winds could gust as high as 32 mph.
Sunday
Sunny, with a high near 61. Light and variable wind becoming east 10 to 15 mph in the morning. Winds could gust as high as 21 mph.
Sunday Night
Mostly clear, with a low around 32. East wind 5 to 14 mph becoming southwest after midnight. Winds could gust as high as 21 mph.
Monday
Sunny, with a high near 77. Southwest wind 5 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 21 mph.
Monday Night
Mostly clear, with a low around 41. Northwest wind 6 to 11 mph becoming light and variable. Winds could gust as high as 18 mph.
Tuesday
Sunny, with a high near 82. South wind 5 to 9 mph becoming east in the morning. Winds could gust as high as 17 mph.
Tuesday Night
Partly cloudy, with a low around 52. East wind 7 to 10 mph becoming south after midnight. Winds could gust as high as 16 mph.
Wednesday
A slight chance of showers after noon. Partly sunny, with a high near 84. Breezy, with a southwest wind 7 to 12 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 32 mph.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 41. Breezy.
Thursday
Rain showers likely before 3pm, then rain and snow showers likely. Partly sunny, with a high near 52. Very windy.
Thursday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 26. Windy.
Friday
A chance of rain and snow showers. Partly sunny, with a high near 47. Windy.
Friday Night
A slight chance of rain and snow showers. Mostly cloudy, with a low around 25. Blustery.
Saturday
A slight chance of rain and snow showers. Partly sunny, with a high near 48.
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ABOUT THIS FORECAST

 
Point Forecast:
Belle Fourche SD
 44.67°N 103.86°W (Elev. 3025 ft)
5:01 pm MDT Apr 18, 2026
6pm MDT Apr 18, 2026-6pm MDT Apr 25, 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