Heat Persists in the South Central U.S. and Southwest; Heavy rains in the Desert Southwest and Central Plains

Sweltering heat remains across the South-Central Plains, Lower/Middle Mississippi Valley, and the Southwest this week with limited nighttime relief. Thunderstorms will bring heavy rainfall leading to localized flash flooding in portions of the Desert Southwest and central Plains. Isolated strong to severe thunderstorms are possible across portions of the central Plains into the Northeast. Read More >

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fair

61°F

16°C

Humidity 36%
Wind Speed S 3 mph
Barometer 30.15 in
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 8 Sep 8:35 pm MDT
Extended Forecast for

Lead SD

  • Tonight

    Tonight: Mostly clear, with a low around 47. Calm wind becoming west around 5 mph after midnight. Winds could gust as high as 16 mph.

    Low: 47 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 71. Northwest wind 5 to 7 mph, with gusts as high as 20 mph.

    High: 71 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 49. Calm wind becoming southwest around 5 mph after midnight.

    Low: 49 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 82. Southwest wind 3 to 6 mph. Winds could gust as high as 16 mph.

    High: 82 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 55. Calm wind becoming southwest around 6 mph after midnight. Winds could gust as high as 17 mph.

    Low: 55 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 78. Southwest wind 6 to 11 mph becoming north in the afternoon. Winds could gust as high as 26 mph.

    High: 78 °F

    Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers.  Partly cloudy, with a low around 42.

    Low: 42 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 62.

    High: 62 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after midnight.  Mostly cloudy, with a low around 43.

    Low: 43 °F

    Showers
    Likely

Detailed Forecast

Tonight
Mostly clear, with a low around 47. Calm wind becoming west around 5 mph after midnight. Winds could gust as high as 16 mph.
Wednesday
Sunny, with a high near 71. Northwest wind 5 to 7 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 49. Calm wind becoming southwest around 5 mph after midnight.
Thursday
Sunny, with a high near 82. Southwest wind 3 to 6 mph. Winds could gust as high as 16 mph.
Thursday Night
Mostly clear, with a low around 55. Calm wind becoming southwest around 6 mph after midnight. Winds could gust as high as 17 mph.
Friday
Sunny, with a high near 78. Southwest wind 6 to 11 mph becoming north in the afternoon. Winds could gust as high as 26 mph.
Friday Night
A 20 percent chance of showers. Partly cloudy, with a low around 42.
Saturday
Mostly sunny, with a high near 62.
Saturday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 43.
Sunday
A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 63.
Sunday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 43.
Monday
A slight chance of showers. Mostly sunny, with a high near 62.
Monday Night
Mostly clear, with a low around 41.
Tuesday
Sunny, with a high near 69.
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ABOUT THIS FORECAST

 
Point Forecast:
Lead SD
 44.35°N 103.77°W (Elev. 5322 ft)
7:26 pm MDT Sep 8, 2026
8pm MDT Sep 8, 2026-6pm MDT Sep 15, 2026
 
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Additional Resources

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