Tracking Storm System Across the Eastern U.S.

A storm system will continue to produce widespread showers and thunderstorms as it progresses eastward across the central U.S. into the Northeast through the weekend. There are risks of severe thunderstorms and excessive rainfall on Saturday from the Ozarks into the mid-Mississippi River Valley with potential for damaging winds, large hail, tornadoes, and flash flooding. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

50°F

10°C

Humidity 46%
Wind Speed W 9 G 17 mph
Barometer 29.76 in (1005.5 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 17 Oct 5:53 pm MDT
Extended Forecast for

3 Miles NE Keystone SD

  • Tonight

    Tonight: A slight chance of rain between midnight and 4am.  Mostly cloudy, with a low around 37. West wind 6 to 14 mph becoming northwest after midnight. Winds could gust as high as 34 mph.  Chance of precipitation is 20%.

    Low: 37 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 48. Northwest wind 10 to 15 mph, with gusts as high as 37 mph.

    High: 48 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 32. West wind 6 to 8 mph, with gusts as high as 21 mph.

    Low: 32 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 67. Southwest wind 8 to 10 mph, with gusts as high as 24 mph.

    High: 67 °F

    Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of showers before midnight.  Partly cloudy, with a low around 41. Southwest wind 9 to 14 mph becoming northwest after midnight. Winds could gust as high as 30 mph.

    Low: 41 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 50. Northwest wind 14 to 18 mph, with gusts as high as 40 mph.

    High: 50 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 33. Northwest wind 6 to 15 mph, with gusts as high as 31 mph.

    Low: 33 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 58. West wind around 7 mph becoming south in the morning. Winds could gust as high as 18 mph.

    High: 58 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

Detailed Forecast

Tonight
A slight chance of rain between midnight and 4am. Mostly cloudy, with a low around 37. West wind 6 to 14 mph becoming northwest after midnight. Winds could gust as high as 34 mph. Chance of precipitation is 20%.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 48. Northwest wind 10 to 15 mph, with gusts as high as 37 mph.
Saturday Night
Mostly clear, with a low around 32. West wind 6 to 8 mph, with gusts as high as 21 mph.
Sunday
Sunny, with a high near 67. Southwest wind 8 to 10 mph, with gusts as high as 24 mph.
Sunday Night
A 20 percent chance of showers before midnight. Partly cloudy, with a low around 41. Southwest wind 9 to 14 mph becoming northwest after midnight. Winds could gust as high as 30 mph.
Monday
Sunny, with a high near 50. Northwest wind 14 to 18 mph, with gusts as high as 40 mph.
Monday Night
Clear, with a low around 33. Northwest wind 6 to 15 mph, with gusts as high as 31 mph.
Tuesday
Sunny, with a high near 58. West wind around 7 mph becoming south in the morning. Winds could gust as high as 18 mph.
Tuesday Night
Mostly clear, with a low around 41.
Wednesday
Mostly sunny, with a high near 61.
Wednesday Night
Mostly clear, with a low around 38.
Thursday
Sunny, with a high near 63.
Thursday Night
Mostly clear, with a low around 43.
Friday
Sunny, with a high near 70.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NE Keystone SD
 43.92°N 103.38°W (Elev. 4416 ft)
5:21 pm MDT Oct 17, 2025
6pm MDT Oct 17, 2025-6pm MDT Oct 24, 2025
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database