National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Severe Thunderstorms and Heavy Rainfall Across the Central Plains and Central Appalachians

Severe thunderstorms producing damaging winds, heavy rainfall, hail and possibly a few tornadoes will continue through tonight across portions of Kansas and Oklahoma. Heavy rainfall will persist across the Central Appalachians through tonight, potentially leading to areas of flooding. The severe weather and heavy rainfall threat will shift into the lower Great Lakes on Wednesday. Read More >

Hazardous Weather Conditions

Current conditions at

Spearfish / Clyde Ice (KSPF)

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

Fair

54°F

12°C

Humidity 94%
Wind Speed W 3 mph
Barometer 30.01 in
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 18 Jun 2:55 am MDT
Extended Forecast for

Lead SD

  • Overnight

    Overnight: Mostly clear, with a low around 49. Calm wind.

    Low: 49 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 75. Calm wind becoming northwest around 5 mph in the afternoon. Winds could gust as high as 15 mph.

    High: 75 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 55. Calm wind becoming southwest around 5 mph after midnight.

    Low: 55 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: Sunny, with a high near 86. Southwest wind around 5 mph becoming west in the afternoon. Winds could gust as high as 15 mph.

    High: 86 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 63. Southeast wind around 5 mph becoming southwest after midnight.

    Low: 63 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 90. Southwest wind 5 to 10 mph becoming west in the afternoon. Winds could gust as high as 20 mph.

    High: 90 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 63. West wind around 5 mph becoming south in the evening. Winds could gust as high as 15 mph.

    Low: 63 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 91. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 91 °F

    Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms before midnight. Mostly clear, with a low around 56.

    Low: 56 °F

    Slight Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 49. Calm wind.
Wednesday
Sunny, with a high near 75. Calm wind becoming northwest around 5 mph in the afternoon. Winds could gust as high as 15 mph.
Wednesday Night
Mostly clear, with a low around 55. Calm wind becoming southwest around 5 mph after midnight.
Juneteenth
Sunny, with a high near 86. Southwest wind around 5 mph becoming west in the afternoon. Winds could gust as high as 15 mph.
Thursday Night
Partly cloudy, with a low around 63. Southeast wind around 5 mph becoming southwest after midnight.
Friday
Sunny, with a high near 90. Southwest wind 5 to 10 mph becoming west in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Mostly clear, with a low around 63. West wind around 5 mph becoming south in the evening. Winds could gust as high as 15 mph.
Saturday
Sunny, with a high near 91. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday Night
A slight chance of showers and thunderstorms before midnight. Mostly clear, with a low around 56.
Sunday
Mostly sunny, with a high near 72.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 46.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 61.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 46.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lead SD
 44.35°N 103.77°W (Elev. 5322 ft)
Last Update:
12:49 am MDT Jun 18, 2025
Forecast Valid:
2am MDT Jun 18, 2025-6pm MDT Jun 24, 2025
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation