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 this 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

40°F

4°C

Humidity 47%
Wind Speed NE 10 mph
Barometer 30.13 in (1021.9 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 9 Apr 5:53 pm MDT
Extended Forecast for

4 Miles SSW Hill City SD

  • Tonight

    Tonight: Mostly clear, with a low around 27. Northeast wind around 6 mph becoming calm in the evening. Winds could gust as high as 20 mph.

    Low: 27 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 52. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 29 mph.

    High: 52 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 39. South wind 7 to 10 mph, with gusts as high as 29 mph.

    Low: 39 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers after noon. Mostly sunny, with a high near 72. Southwest wind 6 to 11 mph, with gusts as high as 25 mph.

    High: 72 °F

    Mostly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: A 20 percent chance of showers before midnight. Partly cloudy, with a low around 45. Southwest wind 6 to 10 mph, with gusts as high as 26 mph.

    Low: 45 °F

    Slight Chance
    Showers then
    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of showers after noon. Sunny, with a high near 67. West wind 8 to 10 mph, with gusts as high as 28 mph.

    High: 67 °F

    Sunny then
    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: A 20 percent chance of showers before midnight. Partly cloudy, with a low around 42. West wind 6 to 8 mph, with gusts as high as 23 mph.

    Low: 42 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Monday

    Monday: A chance of showers after noon. Mostly sunny, with a high near 63. Southwest wind 8 to 13 mph, with gusts as high as 29 mph.

    High: 63 °F

    Mostly Sunny
    then Chance
    Showers

  • Monday Night

    Monday Night: Showers likely, mainly before midnight. Mostly cloudy, with a low around 35.

    Low: 35 °F

    Showers
    Likely

Detailed Forecast

Tonight
Mostly clear, with a low around 27. Northeast wind around 6 mph becoming calm in the evening. Winds could gust as high as 20 mph.
Friday
Mostly sunny, with a high near 52. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 29 mph.
Friday Night
Mostly cloudy, with a low around 39. South wind 7 to 10 mph, with gusts as high as 29 mph.
Saturday
A 30 percent chance of showers after noon. Mostly sunny, with a high near 72. Southwest wind 6 to 11 mph, with gusts as high as 25 mph.
Saturday Night
A 20 percent chance of showers before midnight. Partly cloudy, with a low around 45. Southwest wind 6 to 10 mph, with gusts as high as 26 mph.
Sunday
A 20 percent chance of showers after noon. Sunny, with a high near 67. West wind 8 to 10 mph, with gusts as high as 28 mph.
Sunday Night
A 20 percent chance of showers before midnight. Partly cloudy, with a low around 42. West wind 6 to 8 mph, with gusts as high as 23 mph.
Monday
A chance of showers after noon. Mostly sunny, with a high near 63. Southwest wind 8 to 13 mph, with gusts as high as 29 mph.
Monday Night
Showers likely, mainly before midnight. Mostly cloudy, with a low around 35.
Tuesday
Showers. Partly sunny, with a high near 51.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 33.
Wednesday
A chance of showers. Mostly sunny, with a high near 59.
Wednesday Night
A chance of rain and snow showers. Partly cloudy, with a low around 35.
Thursday
A chance of rain and snow showers. Mostly sunny, with a high near 56.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Hill City SD
 43.87°N 103.58°W (Elev. 5650 ft)
Last Update:
3:03 pm MDT Apr 9, 2026
Forecast Valid:
6pm MDT Apr 9, 2026-6pm MDT Apr 16, 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