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

Heavy Rain and Flooding Concerns in Hawaii; Severe Weather in the Plains

A storm system is expected to bring strong winds, widespread heavy rainfall, and flooding concerns to the Hawaiian Islands through the weekend. Strong to severe thunderstorms are forecast from the Southern Plains to the Mid-Missouri Valley Thursday afternoon and evening. Large hail and strong winds are the primary threats. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

26°F

-3°C

Humidity 66%
Wind Speed Calm
Barometer 30.00 in (1016.1 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Last update 9 Apr 3:53 am MDT
Extended Forecast for

4 Miles WSW Mount Rushmore SD

  • Today

    Today: Mostly sunny, with a high near 49. South wind 6 to 9 mph becoming northeast in the afternoon. Winds could gust as high as 25 mph.

    High: 49 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 27. Northeast wind 5 to 10 mph becoming light and variable. Winds could gust as high as 25 mph.

    Low: 27 °F

    Mostly Clear

  • Friday

    Friday: Partly sunny, with a high near 50. South wind 5 to 14 mph, with gusts as high as 34 mph.

    High: 50 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 40. South wind 11 to 14 mph becoming southwest after midnight. Winds could gust as high as 34 mph.

    Low: 40 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers after noon. Mostly sunny, with a high near 71. Southwest wind around 11 mph, with gusts as high as 28 mph.

    High: 71 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Saturday Night

    Saturday Night: A 40 percent chance of showers before midnight. Partly cloudy, with a low around 46. West wind 10 to 15 mph, with gusts as high as 32 mph.

    Low: 46 °F

    Chance
    Showers then
    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers after noon. Sunny, with a high near 66. West wind 11 to 15 mph, with gusts as high as 34 mph.

    High: 66 °F

    Sunny then
    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers, mainly before midnight. Partly cloudy, with a low around 42. West wind 8 to 10 mph, with gusts as high as 26 mph.

    Low: 42 °F

    Chance
    Showers

  • Monday

    Monday: Showers likely, mainly after noon. Partly sunny, with a high near 56.

    High: 56 °F

    Showers
    Likely

Detailed Forecast

Today
Mostly sunny, with a high near 49. South wind 6 to 9 mph becoming northeast in the afternoon. Winds could gust as high as 25 mph.
Tonight
Mostly clear, with a low around 27. Northeast wind 5 to 10 mph becoming light and variable. Winds could gust as high as 25 mph.
Friday
Partly sunny, with a high near 50. South wind 5 to 14 mph, with gusts as high as 34 mph.
Friday Night
Mostly cloudy, with a low around 40. South wind 11 to 14 mph becoming southwest after midnight. Winds could gust as high as 34 mph.
Saturday
A 20 percent chance of showers after noon. Mostly sunny, with a high near 71. Southwest wind around 11 mph, with gusts as high as 28 mph.
Saturday Night
A 40 percent chance of showers before midnight. Partly cloudy, with a low around 46. West wind 10 to 15 mph, with gusts as high as 32 mph.
Sunday
A 20 percent chance of showers after noon. Sunny, with a high near 66. West wind 11 to 15 mph, with gusts as high as 34 mph.
Sunday Night
A chance of showers, mainly before midnight. Partly cloudy, with a low around 42. West wind 8 to 10 mph, with gusts as high as 26 mph.
Monday
Showers likely, mainly after noon. Partly sunny, with a high near 56.
Monday Night
Rain showers likely before 3am, then rain and snow showers likely. Mostly cloudy, with a low around 31.
Tuesday
Rain and snow showers likely. Mostly cloudy, with a high near 41.
Tuesday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 30.
Wednesday
A slight chance of showers. Mostly sunny, with a high near 56.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Mount Rushmore SD
 43.85°N 103.52°W (Elev. 6109 ft)
Last Update:
3:48 am MDT Apr 9, 2026
Forecast Valid:
4am MDT Apr 9, 2026-6pm MDT Apr 15, 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