Dangerous Heat over the South-Central and Southwest U.S. Through Next Week

Dangerous heat persists across the Desert Southwest through this weekend and across the Southern Plains and Lower Mississippi Valley through at least the middle of next week. Numerous daily record high temperatures are expected through at least Tuesday for much of Texas and Oklahoma as well as portions of Louisiana, New Mexico, and Arizona. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

71°F

22°C

Humidity 55%
Wind Speed SE 6 mph
Barometer 30.28 in (1018.5 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 22 Aug 7:53 pm MDT
Extended Forecast for

5 Miles SE Custer County Airport SD

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms before 3am.  Mostly cloudy, with a low around 59. South wind 6 to 8 mph, with gusts as high as 17 mph.

    Low: 59 °F

    Chance
    T-storms

  • Sunday

    Sunday: A slight chance of showers and thunderstorms between noon and 3pm.  Mostly cloudy, then gradually becoming sunny, with a high near 85. South wind around 6 mph becoming north in the afternoon. Winds could gust as high as 18 mph.  Chance of precipitation is 20%.

    High: 85 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 60. Northeast wind 5 to 8 mph becoming northwest after midnight. Winds could gust as high as 16 mph.

    Low: 60 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms after noon.  Sunny, with a high near 83. Northwest wind 5 to 8 mph becoming northeast in the afternoon. Winds could gust as high as 18 mph.

    High: 83 °F

    Sunny then
    Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 57. Northeast wind around 6 mph becoming north after midnight. Winds could gust as high as 17 mph.

    Low: 57 °F

    Chance
    T-storms then
    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers, then a chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 76. North wind around 6 mph becoming east in the morning. Winds could gust as high as 16 mph.  Chance of precipitation is 50%.

    High: 76 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 54.

    Low: 54 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms after noon.  Sunny, with a high near 77.

    High: 77 °F

    Sunny then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 56.

    Low: 56 °F

    Slight Chance
    T-storms then
    Mostly Clear

Detailed Forecast

Tonight
A 50 percent chance of showers and thunderstorms before 3am. Mostly cloudy, with a low around 59. South wind 6 to 8 mph, with gusts as high as 17 mph.
Sunday
A slight chance of showers and thunderstorms between noon and 3pm. Mostly cloudy, then gradually becoming sunny, with a high near 85. South wind around 6 mph becoming north in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 20%.
Sunday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 60. Northeast wind 5 to 8 mph becoming northwest after midnight. Winds could gust as high as 16 mph.
Monday
A 40 percent chance of showers and thunderstorms after noon. Sunny, with a high near 83. Northwest wind 5 to 8 mph becoming northeast in the afternoon. Winds could gust as high as 18 mph.
Monday Night
A 30 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 57. Northeast wind around 6 mph becoming north after midnight. Winds could gust as high as 17 mph.
Tuesday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly sunny, with a high near 76. North wind around 6 mph becoming east in the morning. Winds could gust as high as 16 mph. Chance of precipitation is 50%.
Tuesday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 54.
Wednesday
A slight chance of showers and thunderstorms after noon. Sunny, with a high near 77.
Wednesday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 56.
Thursday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 80.
Thursday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 57.
Friday
Mostly sunny, with a high near 82.
Friday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 57.
Saturday
Mostly sunny, with a high near 82.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SE Custer County Airport SD
 43.67°N 103.56°W (Elev. 5623 ft)
5:41 pm MDT Aug 22, 2026
8pm MDT Aug 22, 2026-6pm MDT Aug 29, 2026
 
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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