Severe Weather in the Central U.S.; Heavy Rain in the Ohio Valley and Mid-Atlantic

Scattered severe thunderstorms capable of producing severe gusts, large hail, and perhaps a couple tornadoes are forecast from the north-central High Plains into the Upper Mississippi Valley. Widespread thunderstorms may produce excessive rainfall across portions of the Ohio Valley and Mid-Atlantic. Hot conditions and Critical Fire Weather looms over the Great Basin and Southwest through midweek. Read More >

Hazardous Weather Conditions

Current conditions at

Custer, Custer County Airport (KCUT)

Lat: 43.73°NLon: 103.62°WElev: 5600ft.

Fair

69°F

21°C

Humidity 45%
Wind Speed N 3 mph
Barometer 30.10 in (1012.6 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 16 Jun 9:53 am MDT
Extended Forecast for

Keystone SD

  • Today

    Today: A 40 percent chance of showers and thunderstorms after 2pm. Some of the storms could be severe.  Partly sunny, with a high near 78. Northeast wind around 5 mph, with gusts as high as 20 mph.

    High: 78 °F

    Mostly Sunny
    then Severe
    Thunderstorms

  • Tonight

    Tonight: Showers and thunderstorms, mainly before 3am. Some of the storms could be severe.  Low around 55. Northeast wind around 5 mph becoming calm  in the evening. Winds could gust as high as 15 mph.  Chance of precipitation is 80%.

    Low: 55 °F

    Severe
    Thunderstorms

  • Tuesday

    Tuesday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after noon.  High near 66. Calm wind becoming east around 5 mph. Winds could gust as high as 15 mph.  Chance of precipitation is 90%.

    High: 66 °F

    T-storms
    Likely then
    T-storms

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers and thunderstorms before midnight.  Mostly cloudy, then gradually becoming mostly clear, with a low around 51. Northeast wind around 5 mph becoming calm.

    Low: 51 °F

    Chance
    T-storms then
    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 75. West wind around 5 mph becoming east 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 56. Calm wind becoming southwest 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 84. Southwest wind around 5 mph becoming southeast in the afternoon. Winds could gust as high as 20 mph.

    High: 84 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 62. Southeast wind around 5 mph becoming southwest after midnight. Winds could gust as high as 15 mph.

    Low: 62 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

Detailed Forecast

Today
A 40 percent chance of showers and thunderstorms after 2pm. Some of the storms could be severe. Partly sunny, with a high near 78. Northeast wind around 5 mph, with gusts as high as 20 mph.
Tonight
Showers and thunderstorms, mainly before 3am. Some of the storms could be severe. Low around 55. Northeast wind around 5 mph becoming calm in the evening. Winds could gust as high as 15 mph. Chance of precipitation is 80%.
Tuesday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after noon. High near 66. Calm wind becoming east around 5 mph. Winds could gust as high as 15 mph. Chance of precipitation is 90%.
Tuesday Night
A 50 percent chance of showers and thunderstorms before midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 51. Northeast wind around 5 mph becoming calm.
Wednesday
Sunny, with a high near 75. West wind around 5 mph becoming east in the afternoon. Winds could gust as high as 15 mph.
Wednesday Night
Mostly clear, with a low around 56. Calm wind becoming southwest around 5 mph after midnight. Winds could gust as high as 15 mph.
Juneteenth
Sunny, with a high near 84. Southwest wind around 5 mph becoming southeast in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
Partly cloudy, with a low around 62. Southeast wind around 5 mph becoming southwest after midnight. Winds could gust as high as 15 mph.
Friday
Sunny, with a high near 86.
Friday Night
Mostly clear, with a low around 61.
Saturday
Sunny, with a high near 88.
Saturday Night
Mostly clear, with a low around 60.
Sunday
Sunny, with a high near 75.
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ABOUT THIS FORECAST

 
Point Forecast:
Keystone SD
 43.92°N 103.44°W (Elev. 4800 ft)
10:09 am MDT Jun 16, 2025
10am MDT Jun 16, 2025-6pm MDT Jun 22, 2025
 
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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