Heavy Rain and Flooding Concerns in Hawaii; Severe Weather this Weekend in the Plains; Pacific Storm in the West

A storm system near the Hawaiian Islands is expected to bring periods of heavy rainfall, strong winds, and isolated strong to severe thunderstorms through Friday. Several rounds of severe thunderstorms are forecast to impact parts of the Great Plains into the Midwest this weekend into next week. Moderate to heavy rainfall and high elevation snow is expected this weekend over California and Oregon. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

37°F

3°C

Humidity 50%
Wind Speed E 12 mph
Barometer 30.13 in (1022.2 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 9 Apr 6:53 pm MDT
Extended Forecast for

6 Miles NNW Keystone SD

  • Tonight

    Tonight: Mostly clear, with a low around 27. East wind around 5 mph becoming calm  in the evening.

    Low: 27 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 56. Light southwest wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 30 mph.

    High: 56 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 41. South wind 6 to 10 mph, with gusts as high as 29 mph.

    Low: 41 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers after noon.  Mostly sunny, with a high near 77. Southwest wind 6 to 8 mph, with gusts as high as 25 mph.

    High: 77 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Saturday Night

    Saturday Night: A 20 percent chance of showers before midnight.  Partly cloudy, with a low around 48. Southwest wind around 7 mph, with gusts as high as 24 mph.

    Low: 48 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers after noon.  Sunny, with a high near 72. West wind 7 to 9 mph, with gusts as high as 28 mph.

    High: 72 °F

    Sunny then
    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: A 20 percent chance of showers before midnight.  Partly cloudy, with a low around 44. West wind around 6 mph becoming calm. Winds could gust as high as 20 mph.

    Low: 44 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Monday

    Monday: A chance of showers after noon.  Mostly sunny, with a high near 67. Southwest wind 5 to 9 mph, with gusts as high as 28 mph.

    High: 67 °F

    Mostly Sunny
    then Chance
    Showers

  • Monday Night

    Monday Night: Showers likely, mainly before midnight.  Mostly cloudy, with a low around 37.

    Low: 37 °F

    Showers
    Likely

Detailed Forecast

Tonight
Mostly clear, with a low around 27. East wind around 5 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 56. Light southwest wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 30 mph.
Friday Night
Mostly cloudy, with a low around 41. South wind 6 to 10 mph, with gusts as high as 29 mph.
Saturday
A 20 percent chance of showers after noon. Mostly sunny, with a high near 77. Southwest wind 6 to 8 mph, with gusts as high as 25 mph.
Saturday Night
A 20 percent chance of showers before midnight. Partly cloudy, with a low around 48. Southwest wind around 7 mph, with gusts as high as 24 mph.
Sunday
A 20 percent chance of showers after noon. Sunny, with a high near 72. West wind 7 to 9 mph, with gusts as high as 28 mph.
Sunday Night
A 20 percent chance of showers before midnight. Partly cloudy, with a low around 44. West wind around 6 mph becoming calm. Winds could gust as high as 20 mph.
Monday
A chance of showers after noon. Mostly sunny, with a high near 67. Southwest wind 5 to 9 mph, with gusts as high as 28 mph.
Monday Night
Showers likely, mainly before midnight. Mostly cloudy, with a low around 37.
Tuesday
Showers likely. Partly sunny, with a high near 53.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 35.
Wednesday
A chance of showers. Mostly sunny, with a high near 62.
Wednesday Night
A chance of showers. Partly cloudy, with a low around 37.
Thursday
A chance of rain and snow showers. Mostly sunny, with a high near 59.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles NNW Keystone SD
 43.98°N 103.47°W (Elev. 4800 ft)
6:47 pm MDT Apr 9, 2026
7pm MDT Apr 9, 2026-6pm MDT Apr 16, 2026
 
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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