Unsettled Weather in the Southeast and West; Unseasonably Hot in the North-Central U.S.; Coastal Impacts Along the East Coast

Thunderstorms and heavy rainfall may produce isolated flash flooding along the southeast Atlantic coast the next several days. Showers and thunderstorms persist across portions of the Great Basin, Pacific Northwest, and northern Rockies. Unseasonably hot temperatures continue for much of the Plains and Midwest. High surf, dangerous rip currents, and coastal flooding continue along the East Coast. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

50°F

10°C

Humidity 80%
Wind Speed Calm
Barometer 30.22 in (1019.9 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 2 Oct 7:53 am MDT
Extended Forecast for

3 Miles NW Keystone SD

Fire Weather Watch October 3, 12:00pm until October 3, 07:00pm
Click here for hazard details and duration
Fire Weather Watch
  • Today

    Today: Sunny, with a high near 76. Southwest wind 5 to 7 mph, with gusts as high as 20 mph.

    High: 76 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 58. Light south wind becoming southwest 5 to 9 mph in the evening. Winds could gust as high as 18 mph.

    Low: 58 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 81. Southwest wind 7 to 9 mph, with gusts as high as 25 mph.

    High: 81 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 57. South wind 6 to 9 mph becoming west after midnight. Winds could gust as high as 17 mph.

    Low: 57 °F

    Partly Cloudy

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm after noon.  Partly sunny, with a high near 69. West wind around 7 mph, with gusts as high as 20 mph.  Chance of precipitation is 60%.

    High: 69 °F

    Partly Sunny
    then Showers
    Likely

  • Saturday Night

    Saturday Night: Rain and possibly a thunderstorm.  Low around 40. West wind 6 to 15 mph, with gusts as high as 33 mph.  Chance of precipitation is 90%.

    Low: 40 °F

    Rain

  • Sunday

    Sunday: A chance of rain before noon, then a slight chance of showers after noon.  Mostly cloudy, with a high near 47. Northwest wind 8 to 15 mph, with gusts as high as 32 mph.  Chance of precipitation is 40%.

    High: 47 °F

    Chance Rain

  • Sunday Night

    Sunday Night: A slight chance of rain before midnight, then a chance of rain and snow between midnight and 5am, then a chance of snow after 5am.  Mostly cloudy, with a low around 35. North wind 5 to 7 mph becoming light and variable  after midnight. Winds could gust as high as 15 mph.

    Low: 35 °F

    Slight Chance
    Rain then
    Chance
    Rain/Snow

  • Monday

    Monday: A slight chance of snow before 7am, then a slight chance of rain showers.  Mostly cloudy, with a high near 45.

    High: 45 °F

    Slight Chance
    Rain/Snow
    then Slight
    Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 76. Southwest wind 5 to 7 mph, with gusts as high as 20 mph.
Tonight
Partly cloudy, with a low around 58. Light south wind becoming southwest 5 to 9 mph in the evening. Winds could gust as high as 18 mph.
Friday
Sunny, with a high near 81. Southwest wind 7 to 9 mph, with gusts as high as 25 mph.
Friday Night
Partly cloudy, with a low around 57. South wind 6 to 9 mph becoming west after midnight. Winds could gust as high as 17 mph.
Saturday
Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 69. West wind around 7 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Saturday Night
Rain and possibly a thunderstorm. Low around 40. West wind 6 to 15 mph, with gusts as high as 33 mph. Chance of precipitation is 90%.
Sunday
A chance of rain before noon, then a slight chance of showers after noon. Mostly cloudy, with a high near 47. Northwest wind 8 to 15 mph, with gusts as high as 32 mph. Chance of precipitation is 40%.
Sunday Night
A slight chance of rain before midnight, then a chance of rain and snow between midnight and 5am, then a chance of snow after 5am. Mostly cloudy, with a low around 35. North wind 5 to 7 mph becoming light and variable after midnight. Winds could gust as high as 15 mph.
Monday
A slight chance of snow before 7am, then a slight chance of rain showers. Mostly cloudy, with a high near 45.
Monday Night
Partly cloudy, with a low around 36.
Tuesday
Mostly sunny, with a high near 53.
Tuesday Night
Mostly clear, with a low around 37.
Wednesday
Sunny, with a high near 59.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NW Keystone SD
 43.94°N 103.47°W (Elev. 5482 ft)
6:21 am MDT Oct 2, 2025
8am MDT Oct 2, 2025-6pm MDT Oct 8, 2025
 
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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