Showers and Thunderstorms from the Southern Plains into the Ohio Valley; Record Warmth in the Central U.S.
Heavy rain and widely scattered severe storms are expected over portions of the central and southern Plains into the Ohio Valley. Unseasonable warmth will continue for a few more days across the Midwest, Southeast, and Mid-Atlantic where several daily record highs could fall. Read More >
Current conditions at
Custer, Custer County Airport (KCUT)
Lat: 43.73°NLon: 103.62°WElev: 5600ft.
Light Rain
40°F
4°C
| Humidity | 100% |
| Wind Speed | E 3 mph |
| Barometer | 30.18 in (1021.4 mb) |
| Dewpoint | 40°F (4°C) |
| Visibility | 10.00 mi |
| Last update | 14 Oct 8:53 am MDT |
Extended Forecast for
Keystone SD
Today
High: 51 °F
Chance
Showers and
Patchy FogTonight
Low: 41 °F
Chance Rain
then Rain
LikelyThursday
High: 54 °F
Slight Chance
Rain then
SunnyThursday Night
Low: 29 °F
Clear
Friday
High: 59 °F
Sunny
Friday Night
Low: 48 °F
Clear
Saturday
High: 76 °F
Sunny
Saturday Night
Low: 52 °F
Mostly Clear
Sunday
High: 68 °F
Sunny
Detailed Forecast
Today
A chance of showers, mainly between 11am and 4pm, then a chance of rain after 4pm. Patchy fog before noon. Otherwise, mostly cloudy, with a high near 51. Calm wind becoming southeast around 5 mph. Winds could gust as high as 15 mph. Chance of precipitation is 50%.
Tonight
Rain likely, mainly after midnight. Cloudy, with a low around 41. Calm wind becoming north 5 to 7 mph after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 70%.
Thursday
A 20 percent chance of rain before 9am. Cloudy through mid morning, then gradual clearing, with a high near 54. Northwest wind 9 to 17 mph, with gusts as high as 36 mph.
Thursday Night
Clear, with a low around 29. Northwest wind 10 to 15 mph becoming light after midnight. Winds could gust as high as 33 mph.
Friday
Sunny, with a high near 59. Calm wind becoming south 5 to 8 mph in the afternoon. Winds could gust as high as 24 mph.
Friday Night
Clear, with a low around 48. West wind 8 to 13 mph, with gusts as high as 34 mph.
Saturday
Sunny, with a high near 76.
Saturday Night
Mostly clear, with a low around 52.
Sunday
Sunny, with a high near 68.
Sunday Night
Mostly clear, with a low around 46.
Monday
Sunny, with a high near 70.
Monday Night
Mostly clear, with a low around 52.
Tuesday
Sunny, with a high near 71.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Keystone SD
43.89°N 103.43°W (Elev. 4541 ft)
43.89°N 103.43°W (Elev. 4541 ft)
9:21 am MDT Oct 14, 2026
9am MDT Oct 14, 2026-6pm MDT Oct 20, 2026
Additional Resources
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