National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Flooding Risks from Tropical Moisture Across the Southeast and Southwest

Tropical moisture from Isaias and Rachel will impact portions of the Southeast and Southwest this weekend. Flash flooding, strong winds and even a threat for severe thunderstorms and tornadoes are possible. Meanwhile, strong winds and dry fuels are raising fire weather concerns across the central Great Basin and western High Plains. Across the northern Rockies, first winter storm of the season. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

57°F

14°C

Humidity 49%
Wind Speed Calm
Barometer 29.80 in (1002.8 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 10 Oct 10:53 pm MDT
Extended Forecast for

Hot Springs SD

  • Tonight

    Tonight: Increasing clouds, with a low around 56. West wind around 5 mph becoming calm after midnight.

    Low: 56 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Partly sunny, with a high near 70. Light and variable wind becoming northeast 10 to 15 mph in the morning. Winds could gust as high as 25 mph.

    High: 70 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 46. Northeast wind 8 to 18 mph, with gusts as high as 28 mph.

    Low: 46 °F

    Chance
    Showers

  • Columbus Day

    Columbus Day: Cloudy through mid morning, then gradual clearing, with a high near 67. Northeast wind 5 to 11 mph becoming southwest in the afternoon. Winds could gust as high as 23 mph.

    High: 67 °F

    Gradual
    Clearing

  • Monday Night

    Monday Night: A 40 percent chance of rain. Increasing clouds, with a low around 43. Northeast wind 10 to 15 mph becoming light and variable after midnight. Winds could gust as high as 24 mph.

    Low: 43 °F

    Chance Rain

  • Tuesday

    Tuesday: A 30 percent chance of rain, mainly before noon. Partly sunny, with a high near 59. Light east wind increasing to 5 to 9 mph in the morning. Winds could gust as high as 20 mph.

    High: 59 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: Rain likely, mainly after midnight. Mostly cloudy, with a low around 43. Chance of precipitation is 60%.

    Low: 43 °F

    Chance Rain
    then Rain
    Likely

  • Wednesday

    Wednesday: Rain likely. Mostly cloudy, with a high near 56.

    High: 56 °F

    Rain Likely

  • Wednesday Night

    Wednesday Night: Rain likely, mainly before midnight. Mostly cloudy, with a low around 43.

    Low: 43 °F

    Rain Likely

Detailed Forecast

Tonight
Increasing clouds, with a low around 56. West wind around 5 mph becoming calm after midnight.
Sunday
Partly sunny, with a high near 70. Light and variable wind becoming northeast 10 to 15 mph in the morning. Winds could gust as high as 25 mph.
Sunday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 46. Northeast wind 8 to 18 mph, with gusts as high as 28 mph.
Columbus Day
Cloudy through mid morning, then gradual clearing, with a high near 67. Northeast wind 5 to 11 mph becoming southwest in the afternoon. Winds could gust as high as 23 mph.
Monday Night
A 40 percent chance of rain. Increasing clouds, with a low around 43. Northeast wind 10 to 15 mph becoming light and variable after midnight. Winds could gust as high as 24 mph.
Tuesday
A 30 percent chance of rain, mainly before noon. Partly sunny, with a high near 59. Light east wind increasing to 5 to 9 mph in the morning. Winds could gust as high as 20 mph.
Tuesday Night
Rain likely, mainly after midnight. Mostly cloudy, with a low around 43. Chance of precipitation is 60%.
Wednesday
Rain likely. Mostly cloudy, with a high near 56.
Wednesday Night
Rain likely, mainly before midnight. Mostly cloudy, with a low around 43.
Thursday
A chance of rain. Partly sunny, with a high near 62.
Thursday Night
A slight chance of rain. Partly cloudy, with a low around 40.
Friday
Sunny, with a high near 60.
Friday Night
Mostly clear, with a low around 38.
Saturday
Sunny, with a high near 69.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hot Springs SD
 43.44°N 103.48°W (Elev. 3599 ft)
Last Update:
9:46 pm MDT Oct 10, 2026
Forecast Valid:
11pm MDT Oct 10, 2026-6pm MDT Oct 17, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation