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

Heat Persists in the South Central U.S. and Southwest; Heavy rains in the Desert Southwest and Central Plains

Sweltering heat remains across the South-Central Plains, Lower/Middle Mississippi Valley, and the Southwest this week with limited nighttime relief. Thunderstorms will bring heavy rainfall leading to localized flash flooding in portions of the Desert Southwest and central Plains. Isolated strong to severe thunderstorms are possible across portions of the central Plains into the Northeast. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

59°F

15°C

Humidity 35%
Wind Speed NE 12 G 21 mph
Barometer 30.28 in (1019.6 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Last update 8 Sep 11:53 pm MDT
Extended Forecast for

3 Miles E Custer State Park SD

  • Overnight

    Overnight: Mostly clear, with a low around 56. North wind 8 to 14 mph, with gusts as high as 30 mph.

    Low: 56 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 79. Light and variable wind becoming southeast 5 to 7 mph. Winds could gust as high as 20 mph.

    High: 79 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 56. Calm wind becoming west around 5 mph after midnight. Winds could gust as high as 16 mph.

    Low: 56 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 88. Light west wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 24 mph.

    High: 88 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 64. Light and variable wind becoming west 6 to 11 mph in the evening. Winds could gust as high as 24 mph.

    Low: 64 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 85. West wind 11 to 15 mph becoming north in the afternoon. Winds could gust as high as 28 mph.

    High: 85 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 53.

    Low: 53 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 54.

    Low: 54 °F

    Showers
    Likely

Detailed Forecast

Overnight
Mostly clear, with a low around 56. North wind 8 to 14 mph, with gusts as high as 30 mph.
Wednesday
Sunny, with a high near 79. Light and variable wind becoming southeast 5 to 7 mph. Winds could gust as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 56. Calm wind becoming west around 5 mph after midnight. Winds could gust as high as 16 mph.
Thursday
Sunny, with a high near 88. Light west wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 24 mph.
Thursday Night
Mostly clear, with a low around 64. Light and variable wind becoming west 6 to 11 mph in the evening. Winds could gust as high as 24 mph.
Friday
Sunny, with a high near 85. West wind 11 to 15 mph becoming north in the afternoon. Winds could gust as high as 28 mph.
Friday Night
Partly cloudy, with a low around 53.
Saturday
Mostly sunny, with a high near 73.
Saturday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 54.
Sunday
A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 75.
Sunday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 52.
Monday
A slight chance of showers. Mostly sunny, with a high near 70.
Monday Night
Mostly clear, with a low around 46.
Tuesday
Sunny, with a high near 75.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles E Custer State Park SD
 43.72°N 103.36°W (Elev. 3999 ft)
Last Update:
10:16 pm MDT Sep 8, 2026
Forecast Valid:
12am MDT Sep 9, 2026-6pm MDT Sep 15, 2026
 
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Additional Resources

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Chance of Precipitation