Areas of Dangerous Heat and Severe Thunderstorms

Dangerous heat will build across the Southwest U.S. through the end of the week with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week before returning over much of the Plains into next week. Severe thunderstorms are expected across parts of the central and southern High Plains, central Great Lakes, and Ozarks Wednesday. Read More >

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fair

63°F

17°C

Humidity 52%
Wind Speed SW 6 mph
Barometer 30.28 in
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 25 Aug 9:15 pm MDT
Extended Forecast for

4 Miles S Lead SD

  • Tonight

    Tonight: Mostly clear, with a low around 48. Calm wind.

    Low: 48 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 75. Calm wind becoming north around 5 mph. Winds could gust as high as 16 mph.

    High: 75 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 50. Light and variable wind. Winds could gust as high as 15 mph.

    Low: 50 °F

    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 78. Calm wind becoming southeast around 5 mph in the afternoon. Winds could gust as high as 16 mph.

    High: 78 °F

    Sunny then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 56. Southeast wind 5 to 7 mph becoming southwest after midnight. Winds could gust as high as 22 mph.

    Low: 56 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 83. Southwest wind around 5 mph becoming light and variable  in the afternoon. Winds could gust as high as 18 mph.

    High: 83 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 56.

    Low: 56 °F

    Mostly Cloudy

  • Saturday

    Saturday: A slight chance of showers and thunderstorms after noon.  Partly sunny, with a high near 79.

    High: 79 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 51.

    Low: 51 °F

    Slight Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 48. Calm wind.
Wednesday
Sunny, with a high near 75. Calm wind becoming north around 5 mph. Winds could gust as high as 16 mph.
Wednesday Night
Partly cloudy, with a low around 50. Light and variable wind. Winds could gust as high as 15 mph.
Thursday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 78. Calm wind becoming southeast around 5 mph in the afternoon. Winds could gust as high as 16 mph.
Thursday Night
Partly cloudy, with a low around 56. Southeast wind 5 to 7 mph becoming southwest after midnight. Winds could gust as high as 22 mph.
Friday
Mostly sunny, with a high near 83. Southwest wind around 5 mph becoming light and variable in the afternoon. Winds could gust as high as 18 mph.
Friday Night
Mostly cloudy, with a low around 56.
Saturday
A slight chance of showers and thunderstorms after noon. Partly sunny, with a high near 79.
Saturday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 51.
Sunday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 74.
Sunday Night
Mostly clear, with a low around 47.
Monday
Sunny, with a high near 73.
Monday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 50.
Tuesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 75.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Lead SD
 44.29°N 103.77°W (Elev. 6030 ft)
8:01 pm MDT Aug 25, 2026
9pm MDT Aug 25, 2026-6pm MDT Sep 1, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database