Heavy Rain From the Central Plains to the Mid-Atlantic; Heat Wave Begins This Weekend

Strong to severe thunderstorms and heavy rain will impact portions of the central Plains into the Upper Midwest and the Mid-Atlantic through the weekend. A stretch of unusually hot and humid weather is expected across portions of the central U.S. and the Southeast beginning this weekend and continuing through next week. The heat may reach dangerous levels, particularly mid to late next week. Read More >

Hazardous Weather Conditions

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fair

77°F

25°C

Humidity 51%
Wind Speed E 8 mph
Barometer 30.05 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 18 Jul 5:55 pm MDT
Extended Forecast for

Lead SD

  • Tonight

    Tonight: Scattered showers and thunderstorms, mainly after 3am.  Mostly cloudy, with a low around 57. East wind around 5 mph becoming calm.  Chance of precipitation is 30%.

    Low: 57 °F

    Mostly Cloudy
    then
    Scattered
    Showers

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms, mainly after 3pm.  Partly sunny, with a high near 81. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 81 °F

    Scattered
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms before midnight.  Mostly clear, with a low around 60. Southeast wind around 5 mph, with gusts as high as 20 mph.

    Low: 60 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after noon.  Sunny, with a high near 83. Southwest wind around 5 mph becoming northeast in the afternoon. Winds could gust as high as 15 mph.

    High: 83 °F

    Sunny then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 61. East wind around 5 mph becoming calm  in the evening.

    Low: 61 °F

    Partly Cloudy

  • Monday

    Monday: A slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm.  Sunny, with a high near 84. Calm wind becoming north around 5 mph in the morning. Winds could gust as high as 15 mph.  Chance of precipitation is 20%.

    High: 84 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 60. East wind around 5 mph becoming southwest after midnight. Winds could gust as high as 15 mph.

    Low: 60 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Tuesday

    Tuesday: A chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 80. Southwest wind around 5 mph becoming northeast in the afternoon. Winds could gust as high as 15 mph.

    High: 80 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms.  Partly cloudy, with a low around 57.

    Low: 57 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Scattered showers and thunderstorms, mainly after 3am. Mostly cloudy, with a low around 57. East wind around 5 mph becoming calm. Chance of precipitation is 30%.
Saturday
A 30 percent chance of showers and thunderstorms, mainly after 3pm. Partly sunny, with a high near 81. South wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday Night
A 20 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 60. Southeast wind around 5 mph, with gusts as high as 20 mph.
Sunday
A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 83. Southwest wind around 5 mph becoming northeast in the afternoon. Winds could gust as high as 15 mph.
Sunday Night
Partly cloudy, with a low around 61. East wind around 5 mph becoming calm in the evening.
Monday
A slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Sunny, with a high near 84. Calm wind becoming north around 5 mph in the morning. Winds could gust as high as 15 mph. Chance of precipitation is 20%.
Monday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 60. East wind around 5 mph becoming southwest after midnight. Winds could gust as high as 15 mph.
Tuesday
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 80. Southwest wind around 5 mph becoming northeast in the afternoon. Winds could gust as high as 15 mph.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 57.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 77.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 58.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 81.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 58.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 82.
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ABOUT THIS FORECAST

 
Point Forecast:
Lead SD
 44.35°N 103.77°W (Elev. 5322 ft)
4:30 pm MDT Jul 18, 2025
6pm MDT Jul 18, 2025-6pm MDT Jul 25, 2025
 
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