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

68°F

20°C

Humidity 38%
Wind Speed NW 15 G 25 mph
Barometer 30.28 in
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 3 Oct 2:15 pm MDT
Extended Forecast for

Lead SD

  • This Afternoon

    This Afternoon: Sunny, with a high near 63. Northwest wind 9 to 14 mph, with gusts as high as 25 mph.

    High: 63 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 42. Northwest wind around 6 mph becoming calm in the evening. Winds could gust as high as 17 mph.

    Low: 42 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Sunny, with a high near 70. Calm wind becoming east around 6 mph in the afternoon. Winds could gust as high as 15 mph.

    High: 70 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 50. Light and variable wind becoming south around 6 mph after midnight. Winds could gust as high as 16 mph.

    Low: 50 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 80. West wind around 6 mph becoming calm in the afternoon. Winds could gust as high as 17 mph.

    High: 80 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 55. Light southwest wind.

    Low: 55 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 63. Northwest wind 9 to 14 mph, with gusts as high as 25 mph.
Tonight
Increasing clouds, with a low around 42. Northwest wind around 6 mph becoming calm in the evening. Winds could gust as high as 17 mph.
Sunday
Sunny, with a high near 70. Calm wind becoming east around 6 mph in the afternoon. Winds could gust as high as 15 mph.
Sunday Night
Clear, with a low around 50. Light and variable wind becoming south around 6 mph after midnight. Winds could gust as high as 16 mph.
Monday
Sunny, with a high near 80. West wind around 6 mph becoming calm in the afternoon. Winds could gust as high as 17 mph.
Monday Night
Mostly clear, with a low around 55. Light southwest wind.
Tuesday
Sunny, with a high near 74.
Tuesday Night
Mostly clear, with a low around 48.
Wednesday
Sunny, with a high near 71.
Wednesday Night
Mostly clear, with a low around 49.
Thursday
Sunny, with a high near 70.
Thursday Night
Mostly clear, with a low around 50.
Friday
Sunny, with a high near 74.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lead SD
 44.35°N 103.77°W (Elev. 5322 ft)
Last Update:
12:31 pm MDT Oct 3, 2026
Forecast Valid:
2pm MDT Oct 3, 2026-6pm MDT Oct 9, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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Chance of Precipitation