Severe Thunderstorms and Heavy Rain Across the Central US and Central Appalachians

Severe thunderstorms producing damaging winds, hail and possibly a few tornadoes are expected across parts of the central Plains and the Missouri Valley. Heavy rainfall and flash flooding is also expected in the area. Thunderstorms and heavy rain may also bring additional flooding impacts to the central Appalachians. High temperatures and critical fire weather conditions expected in the Southwest. Read More >

Hazardous Weather Conditions

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Thunderstorm in Vicinity

57°F

14°C

Humidity 88%
Wind Speed S 8 mph
Barometer 30.02 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 17 Jun 6:55 pm MDT
Extended Forecast for

Lead SD

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly before 9pm.  Mostly cloudy, then gradually becoming mostly clear, with a low around 49. Calm wind.

    Low: 49 °F

    Chance
    T-storms then
    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 74. Calm wind becoming north around 5 mph.

    High: 74 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 56. Calm wind becoming south around 5 mph after midnight. Winds could gust as high as 15 mph.

    Low: 56 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: Sunny, with a high near 85. Southwest wind around 5 mph becoming northeast in the afternoon. Winds could gust as high as 15 mph.

    High: 85 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 64. East wind around 5 mph becoming southwest after midnight.

    Low: 64 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 86. Southwest wind 5 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 86 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 63. Northwest wind around 5 mph becoming southeast in the evening. Winds could gust as high as 20 mph.

    Low: 63 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 87. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 87 °F

    Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms.  Partly cloudy, with a low around 55.

    Low: 55 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

Detailed Forecast

Tonight
A 40 percent chance of showers and thunderstorms, mainly before 9pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 49. Calm wind.
Wednesday
Sunny, with a high near 74. Calm wind becoming north around 5 mph.
Wednesday Night
Mostly clear, with a low around 56. Calm wind becoming south around 5 mph after midnight. Winds could gust as high as 15 mph.
Juneteenth
Sunny, with a high near 85. Southwest wind around 5 mph becoming northeast in the afternoon. Winds could gust as high as 15 mph.
Thursday Night
Partly cloudy, with a low around 64. East wind around 5 mph becoming southwest after midnight.
Friday
Sunny, with a high near 86. Southwest wind 5 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Mostly clear, with a low around 63. Northwest wind around 5 mph becoming southeast in the evening. Winds could gust as high as 20 mph.
Saturday
Sunny, with a high near 87. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 55.
Sunday
Mostly sunny, with a high near 71.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 47.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 62.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 46.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 65.
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ABOUT THIS FORECAST

 
Point Forecast:
Lead SD
 44.35°N 103.77°W (Elev. 5322 ft)
6:09 pm MDT Jun 17, 2025
7pm MDT Jun 17, 2025-6pm MDT Jun 24, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database