Dangerous Heat in the Central and Eastern U.S.; Severe Thunderstorms in the Central U.S. and Northeast; Critical Fire Weather in the Four Corners

Dangerous, record-breaking heat will intensify across most of the central and eastern U.S this week. Heat indices will likely exceed 100 degrees. Severe thunderstorms are forecast from parts of the central High Plains into the Upper Midwest, and across parts of the Northeast. Critical fire weather conditions will continue across portions of the Four Corners and Great Basin. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

62°F

17°C

Humidity 48%
Wind Speed S 3 mph
Barometer 29.98 in (1009.2 mb)
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Last update 30 Jun 9:53 pm MDT
Extended Forecast for

5 Miles SSW Hill City SD

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms after midnight.  Mostly cloudy, with a low around 51. Calm wind. Winds could gust as high as 15 mph.

    Low: 51 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 75. Light and variable wind. Winds could gust as high as 16 mph.

    High: 75 °F

    Sunny then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 53. Calm wind. Winds could gust as high as 16 mph.

    Low: 53 °F

    Mostly Clear

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 80. Calm wind becoming south around 6 mph. Winds could gust as high as 21 mph.

    High: 80 °F

    Mostly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms before midnight.  Cloudy, then gradually becoming partly cloudy, with a low around 55. Calm wind. Winds could gust as high as 17 mph.

    Low: 55 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms after noon.  Partly sunny, with a high near 79. Light and variable wind. Winds could gust as high as 17 mph.

    High: 79 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms, mainly before midnight.  Partly cloudy, with a low around 54.

    Low: 54 °F

    Chance
    T-storms

  • Independence Day

    Independence Day: A chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

Detailed Forecast

Tonight
A 20 percent chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 51. Calm wind. Winds could gust as high as 15 mph.
Wednesday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 75. Light and variable wind. Winds could gust as high as 16 mph.
Wednesday Night
Mostly clear, with a low around 53. Calm wind. Winds could gust as high as 16 mph.
Thursday
A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 80. Calm wind becoming south around 6 mph. Winds could gust as high as 21 mph.
Thursday Night
A 20 percent chance of showers and thunderstorms before midnight. Cloudy, then gradually becoming partly cloudy, with a low around 55. Calm wind. Winds could gust as high as 17 mph.
Friday
A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 79. Light and variable wind. Winds could gust as high as 17 mph.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly before midnight. Partly cloudy, with a low around 54.
Independence Day
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 77.
Saturday Night
Mostly clear, with a low around 54.
Sunday
Sunny, with a high near 82.
Sunday Night
Partly cloudy, with a low around 59.
Monday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 83.
Monday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 60.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 82.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Hill City SD
 43.86°N 103.61°W (Elev. 5614 ft)
9:32 pm MDT Jun 30, 2026
10pm MDT Jun 30, 2026-6pm MDT Jul 7, 2026
 
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