Heavy Rain in the Southern Appalachians; Fire Weather and Heat in the West; Monitoring Tropical Storm Erin

Heavy to excessive rainfall over the southern Appalachians may bring areas of flooding today. Gusty winds and low relative humidity will bring critical fire weather conditions to parts of the Great Basin and northern Rockies today and Thursday. Hot to extremely hot temperatures are in place through today across parts of the western U.S. Read More >

Hazardous Weather Conditions

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

59°F

15°C

Humidity 78%
Wind Speed W 5 mph
Barometer 30.07 in (1011.4 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 13 Aug 4:53 am MDT
Extended Forecast for

4 Miles NNW Custer SD

  • Overnight

    Overnight: A 20 percent chance of showers and thunderstorms.  Partly cloudy, with a steady temperature around 59. Southwest wind around 5 mph, with gusts as high as 15 mph.

    Low: 59 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms before 8am, then a slight chance of showers and thunderstorms after 2pm. Some of the storms could be severe.  Mostly sunny, with a high near 86. Southwest wind around 5 mph becoming northwest in the afternoon. Winds could gust as high as 15 mph.  Chance of precipitation is 20%.

    High: 86 °F

    Severe
    Thunderstorms

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms before 7pm. Some of the storms could be severe.  Partly cloudy, with a low around 56. North wind around 5 mph becoming calm.

    Low: 56 °F

    Severe
    Thunderstorms
    then Mostly
    Clear

  • Thursday

    Thursday: Sunny, with a high near 86. West wind around 5 mph becoming north in the afternoon. Winds could gust as high as 20 mph.

    High: 86 °F

    Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 57. North wind around 5 mph, with gusts as high as 15 mph.

    Low: 57 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 82. Northwest wind around 5 mph becoming east in the afternoon. Winds could gust as high as 15 mph.

    High: 82 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 57. East wind around 5 mph becoming calm  in the evening. Winds could gust as high as 15 mph.

    Low: 57 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms after noon.  Partly sunny, with a high near 77. North wind around 5 mph becoming east in the morning. Winds could gust as high as 15 mph.

    High: 77 °F

    Partly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, mainly before midnight.  Mostly cloudy, with a low around 56.

    Low: 56 °F

    Chance
    T-storms

Detailed Forecast

Overnight
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a steady temperature around 59. Southwest wind around 5 mph, with gusts as high as 15 mph.
Wednesday
A slight chance of showers and thunderstorms before 8am, then a slight chance of showers and thunderstorms after 2pm. Some of the storms could be severe. Mostly sunny, with a high near 86. Southwest wind around 5 mph becoming northwest in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 20%.
Wednesday Night
A 20 percent chance of showers and thunderstorms before 7pm. Some of the storms could be severe. Partly cloudy, with a low around 56. North wind around 5 mph becoming calm.
Thursday
Sunny, with a high near 86. West wind around 5 mph becoming north in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 57. North wind around 5 mph, with gusts as high as 15 mph.
Friday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 82. Northwest wind around 5 mph becoming east in the afternoon. Winds could gust as high as 15 mph.
Friday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 57. East wind around 5 mph becoming calm in the evening. Winds could gust as high as 15 mph.
Saturday
A chance of showers and thunderstorms after noon. Partly sunny, with a high near 77. North wind around 5 mph becoming east in the morning. Winds could gust as high as 15 mph.
Saturday Night
A chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, with a low around 56.
Sunday
A chance of showers and thunderstorms, mainly after noon. Mostly sunny, with a high near 78.
Sunday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 55.
Monday
A slight chance of showers and thunderstorms. Sunny, with a high near 81.
Monday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 56.
Tuesday
A slight chance of showers and thunderstorms. Sunny, with a high near 81.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNW Custer SD
 43.82°N 103.64°W (Elev. 5804 ft)
5:49 am MDT Aug 13, 2025
5am MDT Aug 13, 2025-6pm MDT Aug 19, 2025
 
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Additional Resources

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