Severe Weather and Heavy Rain from the Ohio Valley to the Mid-Atlantic; Heat Persists in the South-Central U.S.

Widespread strong thunderstorms with damaging winds and locally heavy rain are expected across portions of the Ohio Valley into southern Mid-Atlantic and Carolinas. Rounds of strong thunderstorms are expected to develop across the northern and central Plains. Sweltering heat remains most persistent across the South-Central Plains and Lower/Middle Mississippi Valley through next week. Read More >

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fair

82°F

28°C

Humidity 30%
Wind Speed S 15 G 23 mph
Barometer 29.99 in
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 5 Sep 8:35 pm MDT
Extended Forecast for

4 Miles SSW Lead SD

  • Tonight

    Tonight: Partly cloudy, with a low around 58. Southwest wind 3 to 5 mph. Winds could gust as high as 16 mph.

    Low: 58 °F

    Partly Cloudy

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms, mainly after 3pm.  Mostly sunny, with a high near 84. Calm wind becoming southeast 5 to 7 mph in the afternoon. Winds could gust as high as 17 mph.

    High: 84 °F

    Sunny then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms, mainly after midnight.  Increasing clouds, with a low around 59. Southeast wind 5 to 7 mph becoming southwest after midnight. Winds could gust as high as 24 mph.

    Low: 59 °F

    Chance
    T-storms

  • Labor Day

    Labor Day: Partly sunny, with a high near 79. West wind 6 to 10 mph, with gusts as high as 29 mph.

    High: 79 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 48. Southwest wind 5 to 9 mph becoming calm  after midnight. Winds could gust as high as 28 mph.

    Low: 48 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 71. Calm wind becoming west 5 to 7 mph in the morning. Winds could gust as high as 23 mph.

    High: 71 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 58. Southwest wind 3 to 5 mph. Winds could gust as high as 16 mph.
Sunday
A 30 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 84. Calm wind becoming southeast 5 to 7 mph in the afternoon. Winds could gust as high as 17 mph.
Sunday Night
A 40 percent chance of showers and thunderstorms, mainly after midnight. Increasing clouds, with a low around 59. Southeast wind 5 to 7 mph becoming southwest after midnight. Winds could gust as high as 24 mph.
Labor Day
Partly sunny, with a high near 79. West wind 6 to 10 mph, with gusts as high as 29 mph.
Monday Night
Mostly clear, with a low around 48. Southwest wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 28 mph.
Tuesday
Sunny, with a high near 71. Calm wind becoming west 5 to 7 mph in the morning. Winds could gust as high as 23 mph.
Tuesday Night
Mostly clear, with a low around 42.
Wednesday
Sunny, with a high near 72.
Wednesday Night
Partly cloudy, with a low around 47.
Thursday
Sunny, with a high near 77.
Thursday Night
Partly cloudy, with a low around 49.
Friday
Sunny, with a high near 75.
Friday Night
Mostly clear, with a low around 47.
Saturday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 71.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Lead SD
 44.29°N 103.8°W (Elev. 5761 ft)
7:56 pm MDT Sep 5, 2026
8pm MDT Sep 5, 2026-6pm MDT Sep 12, 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