Heavy Rainfall and Flooding Concerns in the Southwest; Coastal Low to Impact the East Coast

Deep tropical moisture will lead to widespread showers and thunderstorms capable of producing flash flooding through early next week over the Southwest and Four Corners. A coastal storm is expected to impact the southeast U.S. coast and mid-Atlantic regions with flooding, dangerous rip currents, gusty winds and heavy rain up much of the East Coast through early next week. Read More >

Hazardous Weather Conditions

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

64°F

18°C

Humidity 56%
Wind Speed SW 8 mph
Barometer 29.79 in (1003.1 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 11 Oct 12:53 pm MDT
Extended Forecast for

4 Miles E Hill City SD

  • This Afternoon

    This Afternoon: A 30 percent chance of showers after 2pm.  Mostly cloudy, with a high near 70. Southwest wind 7 to 9 mph, with gusts as high as 23 mph.

    High: 70 °F

    Chance
    Showers

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 47. Southwest wind 7 to 12 mph increasing to 13 to 18 mph after midnight. Winds could gust as high as 25 mph.

    Low: 47 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: A 20 percent chance of showers before noon.  Sunny, with a temperature falling to around 49 by 8am. Breezy, with a west wind 15 to 20 mph decreasing to 7 to 12 mph in the afternoon. Winds could gust as high as 28 mph.

    High: 55 °F

    Slight Chance
    Showers and
    Breezy then
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 27. Northwest wind around 6 mph becoming calm  after midnight.

    Low: 27 °F

    Mostly Clear

  • Columbus Day

    Columbus Day: Mostly sunny, with a high near 50. Light south wind becoming southeast 5 to 10 mph in the morning. Winds could gust as high as 25 mph.

    High: 50 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 20 percent chance of showers after midnight.  Mostly cloudy, with a low around 35. Southeast wind 5 to 8 mph, with gusts as high as 23 mph.

    Low: 35 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Tuesday

    Tuesday: A 20 percent chance of showers before noon.  Cloudy, then gradually becoming mostly sunny, with a high near 55. South wind 5 to 7 mph, with gusts as high as 20 mph.

    High: 55 °F

    Slight Chance
    Showers then
    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 42. Southeast wind around 6 mph becoming calm  in the evening. Winds could gust as high as 17 mph.

    Low: 42 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of showers, mainly after noon.  Mostly cloudy, with a high near 56.

    High: 56 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
A 30 percent chance of showers after 2pm. Mostly cloudy, with a high near 70. Southwest wind 7 to 9 mph, with gusts as high as 23 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 47. Southwest wind 7 to 12 mph increasing to 13 to 18 mph after midnight. Winds could gust as high as 25 mph.
Sunday
A 20 percent chance of showers before noon. Sunny, with a temperature falling to around 49 by 8am. Breezy, with a west wind 15 to 20 mph decreasing to 7 to 12 mph in the afternoon. Winds could gust as high as 28 mph.
Sunday Night
Mostly clear, with a low around 27. Northwest wind around 6 mph becoming calm after midnight.
Columbus Day
Mostly sunny, with a high near 50. Light south wind becoming southeast 5 to 10 mph in the morning. Winds could gust as high as 25 mph.
Monday Night
A 20 percent chance of showers after midnight. Mostly cloudy, with a low around 35. Southeast wind 5 to 8 mph, with gusts as high as 23 mph.
Tuesday
A 20 percent chance of showers before noon. Cloudy, then gradually becoming mostly sunny, with a high near 55. South wind 5 to 7 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly cloudy, with a low around 42. Southeast wind around 6 mph becoming calm in the evening. Winds could gust as high as 17 mph.
Wednesday
A chance of showers, mainly after noon. Mostly cloudy, with a high near 56.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 44.
Thursday
A chance of showers. Partly sunny, with a high near 55.
Thursday Night
A chance of showers. Partly cloudy, with a low around 35.
Friday
A slight chance of showers. Mostly sunny, with a high near 52.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles E Hill City SD
 43.93°N 103.5°W (Elev. 5197 ft)
1:17 pm MDT Oct 11, 2025
1pm MDT Oct 11, 2025-6pm MDT Oct 17, 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