Hawaii and Guam Concerns; Severe Weather for the Plains; Heavy Snow for Sierra-Nevada

Heavy rainfall capable of causing flash flooding will continue to impact Hawaii through Monday. Severe thunderstorms and heavy rain are possible in parts of Texas and the southern Plains and the Upper Great Lakes. Heavy mountain snow continues in California's Sierra Nevada and rain with gusty winds to lower elevations. Super Typhoon Sinlaku will impact the Marianas through midweek. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

60°F

16°C

Humidity 27%
Wind Speed W 13 G 24 mph
Barometer 29.77 in (1003.4 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Last update 12 Apr 11:53 am MDT
Extended Forecast for

Hill City SD

Red Flag Warning April 12, 12:15pm until April 13, 09:00pm
Click here for hazard details and duration
Red Flag Warning
  •  
    Red Flag Warning April 12, 12:15pm until April 13, 09:00pm

    NOW until 9:00pm Mon

    Red Flag Warning

  • This Afternoon

    High: 65 °F

    Mostly Sunny

  • Tonight

    Tonight: A 20 percent chance of showers before midnight.  Mostly cloudy, with a low around 43. Light and variable wind. Winds could gust as high as 17 mph.

    Low: 43 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Monday

    Monday: Sunny, with a high near 63. Light west wind becoming southwest 9 to 14 mph in the morning. Winds could gust as high as 31 mph.

    High: 63 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 37. West wind 5 to 10 mph becoming light  in the evening. Winds could gust as high as 26 mph.

    Low: 37 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers after noon.  Partly sunny, with a high near 59. Calm wind becoming south around 5 mph.

    High: 59 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 38. Calm wind.

    Low: 38 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 64. Calm wind becoming southwest 5 to 7 mph in the afternoon. Winds could gust as high as 22 mph.

    High: 64 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 44. West wind 3 to 6 mph. Winds could gust as high as 23 mph.

    Low: 44 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Mostly sunny, with a steady temperature around 65. West wind 5 to 7 mph, with gusts as high as 23 mph.
Tonight
A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 43. Light and variable wind. Winds could gust as high as 17 mph.
Monday
Sunny, with a high near 63. Light west wind becoming southwest 9 to 14 mph in the morning. Winds could gust as high as 31 mph.
Monday Night
Partly cloudy, with a low around 37. West wind 5 to 10 mph becoming light in the evening. Winds could gust as high as 26 mph.
Tuesday
A 20 percent chance of showers after noon. Partly sunny, with a high near 59. Calm wind becoming south around 5 mph.
Tuesday Night
Partly cloudy, with a low around 38. Calm wind.
Wednesday
Mostly sunny, with a high near 64. Calm wind becoming southwest 5 to 7 mph in the afternoon. Winds could gust as high as 22 mph.
Wednesday Night
Partly cloudy, with a low around 44. West wind 3 to 6 mph. Winds could gust as high as 23 mph.
Thursday
A chance of showers after noon. Partly sunny, with a high near 65.
Thursday Night
Rain showers likely before 10pm, then rain and snow showers likely between 10pm and midnight, then a chance of snow showers after midnight. Mostly cloudy, with a low around 26.
Friday
Snow showers likely. Mostly cloudy, with a high near 37.
Friday Night
A chance of snow showers. Mostly cloudy, with a low around 20.
Saturday
A chance of snow showers. Mostly sunny, with a high near 44.
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ABOUT THIS FORECAST

 
Point Forecast:
Hill City SD
 43.93°N 103.59°W (Elev. 5200 ft)
12:12 pm MDT Apr 12, 2026
12pm MDT Apr 12, 2026-6pm MDT Apr 18, 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