Autumn Temperatures for Eastern Third of the Country; Developing Offshore Coastal Storm

Cooler and less humid conditions for most of the eastern third of the nation as high pressure dominates the weather pattern. Otherwise, rather tranquil weather for most of the nation for the end of the weekend into the start of this week. We continue to monitor a developing coastal storm offshore of the Carolinas; Coastal flooding and beach erosion possible along portions of the Mid-Atlantic. Read More >

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fair

64°F

18°C

Humidity 30%
Wind Speed E 14 mph
Barometer 30.17 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 18 Oct 1:55 pm MDT
Extended Forecast for

Belle Fourche SD

  • This Afternoon

    This Afternoon: Sunny, with a high near 66. East wind 9 to 13 mph, with gusts as high as 22 mph.

    High: 66 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 36. East wind 8 to 11 mph, with gusts as high as 20 mph.

    Low: 36 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 64. Breezy, with an east wind 9 to 14 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 38 mph.

    High: 64 °F

    Sunny then
    Sunny and
    Breezy

  • Monday Night

    Monday Night: Mostly clear, with a low around 39. East wind 13 to 18 mph becoming light and variable  after midnight. Winds could gust as high as 34 mph.

    Low: 39 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 73. Calm wind becoming northeast around 6 mph.

    High: 73 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 41. Light and variable wind becoming west 5 to 8 mph in the evening.

    Low: 41 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 66. East wind 9 to 13 mph, with gusts as high as 22 mph.
Tonight
Mostly clear, with a low around 36. East wind 8 to 11 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 64. Breezy, with an east wind 9 to 14 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 38 mph.
Monday Night
Mostly clear, with a low around 39. East wind 13 to 18 mph becoming light and variable after midnight. Winds could gust as high as 34 mph.
Tuesday
Sunny, with a high near 73. Calm wind becoming northeast around 6 mph.
Tuesday Night
Mostly clear, with a low around 41. Light and variable wind becoming west 5 to 8 mph in the evening.
Wednesday
Sunny, with a high near 66.
Wednesday Night
Mostly clear, with a low around 47.
Thursday
Mostly sunny, with a high near 80.
Thursday Night
A slight chance of rain after midnight. Partly cloudy, with a low around 55.
Friday
A slight chance of rain. Partly sunny, with a high near 74. Breezy.
Friday Night
A chance of rain. Mostly cloudy, with a low around 42. Breezy.
Saturday
A slight chance of rain. Mostly sunny, with a high near 54. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
Belle Fourche SD
 44.67°N 103.86°W (Elev. 3025 ft)
12:31 pm MDT Oct 18, 2026
2pm MDT Oct 18, 2026-6pm MDT Oct 24, 2026
 
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