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Air Quality Concerns; Fire Weather; Extreme Heat; Severe Thunderstorms and Flash Flooding

Wildfire smoke continues to result in poor air quality from the Upper Midwest into the Northeast. Dangerous heat and fire weather concerns for portions of the Four Corners region into the central Great Basin and Rockies. Heavy rainfall and flash flooding possible for the Southeast through today. Strong to severe thunderstorms for the Southern Plains with severe wind gusts and large hail possible. Read More >

Hazardous Weather Conditions

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

75°F

24°C

Humidity 42%
Wind Speed E 12 mph
Barometer 30.17 in (1015.4 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 4 Aug 11:53 am MDT
Extended Forecast for

Custer County Airport SD

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms after 3pm. Some of the storms could be severe. Sunny, with a high near 80. Southeast wind around 10 mph, with gusts as high as 20 mph.

    High: 80 °F

    Severe
    Thunderstorms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 9pm. Some of the storms could be severe. Partly cloudy, with a low around 55. East wind 5 to 10 mph becoming south after midnight. Winds could gust as high as 20 mph.

    Low: 55 °F

    Severe
    Thunderstorms
    then Partly
    Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 84. Southwest wind 5 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 84 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 56. North wind around 5 mph, with gusts as high as 15 mph.

    Low: 56 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 83. North wind 5 to 10 mph becoming southeast in the afternoon. Winds could gust as high as 20 mph.

    High: 83 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 58. Southeast wind 5 to 10 mph becoming southwest after midnight. Winds could gust as high as 20 mph.

    Low: 58 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 88. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 88 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 58. Southwest wind 5 to 10 mph becoming northeast in the evening. Winds could gust as high as 20 mph.

    Low: 58 °F

    Partly Cloudy

  • Friday

    Friday: A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms after 3pm. Some of the storms could be severe. Sunny, with a high near 80. Southeast wind around 10 mph, with gusts as high as 20 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 9pm. Some of the storms could be severe. Partly cloudy, with a low around 55. East wind 5 to 10 mph becoming south after midnight. Winds could gust as high as 20 mph.
Tuesday
Mostly sunny, with a high near 84. Southwest wind 5 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 56. North wind around 5 mph, with gusts as high as 15 mph.
Wednesday
Sunny, with a high near 83. North wind 5 to 10 mph becoming southeast in the afternoon. Winds could gust as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 58. Southeast wind 5 to 10 mph becoming southwest after midnight. Winds could gust as high as 20 mph.
Thursday
Mostly sunny, with a high near 88. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday Night
Partly cloudy, with a low around 58. Southwest wind 5 to 10 mph becoming northeast in the evening. Winds could gust as high as 20 mph.
Friday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 81.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 51.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 71.
Saturday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 50.
Sunday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 73.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Custer County Airport SD
 43.73°N 103.63°W (Elev. 5531 ft)
Last Update:
11:30 am MDT Aug 4, 2025
Forecast Valid:
12pm MDT Aug 4, 2025-6pm MDT Aug 10, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation