Dangerous Heat in the Central and Eastern U.S.; Severe Thunderstorms in the Great Lakes

Thunderstorms with strong wind gusts and hail will be possible today from Michigan into the Lower Great Lakes region. A significant and dangerous heat wave will expand from the Central U.S. into the Eastern U.S this weekend through much of next week. Numerous daily record highs and warm lows are likely. Read More >

Hazardous Weather Conditions

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

84°F

29°C

Humidity 13%
Wind Speed W 15 G 22 mph
Barometer 29.75 in (1000.0 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 21 Jun 2:53 pm MDT
Extended Forecast for

Custer County Airport SD

  • Tonight

    Tonight: Mostly clear, with a low around 55. Southeast wind 5 to 15 mph becoming north after midnight. Winds could gust as high as 30 mph.

    Low: 55 °F

    Mostly Clear

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms, mainly between 1pm and 5pm.  Sunny, with a high near 76. North wind 5 to 10 mph becoming southwest in the morning. Winds could gust as high as 25 mph.

    High: 76 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms before 9pm.  Partly cloudy, with a low around 43. West wind 5 to 10 mph becoming light  after midnight. Winds could gust as high as 20 mph.

    Low: 43 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 67. Light and variable wind becoming southeast 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 67 °F

    Sunny

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 47. East wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 47 °F

    Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 3pm.  Partly sunny, with a high near 69. East wind 5 to 10 mph, with gusts as high as 25 mph.  Chance of precipitation is 50%.

    High: 69 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms after midnight.  Low around 51. East wind 5 to 10 mph becoming northeast after midnight. Winds could gust as high as 20 mph.  Chance of precipitation is 80%.

    Low: 51 °F

    T-storms then
    Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after noon.  Partly sunny, with a high near 70. Northeast wind around 5 mph becoming south in the morning. Winds could gust as high as 15 mph.

    High: 70 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 49.

    Low: 49 °F

    Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 55. Southeast wind 5 to 15 mph becoming north after midnight. Winds could gust as high as 30 mph.
Sunday
A 30 percent chance of showers and thunderstorms, mainly between 1pm and 5pm. Sunny, with a high near 76. North wind 5 to 10 mph becoming southwest in the morning. Winds could gust as high as 25 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 43. West wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 20 mph.
Monday
Sunny, with a high near 67. Light and variable wind becoming southeast 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Monday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 47. East wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday
A chance of showers, with thunderstorms also possible after 3pm. Partly sunny, with a high near 69. East wind 5 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
Tuesday Night
Showers and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms after midnight. Low around 51. East wind 5 to 10 mph becoming northeast after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 80%.
Wednesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 70. Northeast wind around 5 mph becoming south in the morning. Winds could gust as high as 15 mph.
Wednesday Night
A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 49.
Thursday
A slight chance of showers and thunderstorms after noon. Sunny, with a high near 77.
Thursday Night
Mostly clear, with a low around 54.
Friday
Sunny, with a high near 81.
Friday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 53.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 77.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Custer County Airport SD
 43.73°N 103.63°W (Elev. 5531 ft)
2:50 pm MDT Jun 21, 2025
3pm MDT Jun 21, 2025-6pm MDT Jun 28, 2025
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database