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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 >

Hazardous Weather Conditions

Current conditions at

Custer, Custer County Airport (KCUT)

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

Partly Cloudy

65°F

18°C

Humidity 18%
Wind Speed W 9 mph
Barometer 29.72 in (1002.3 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Last update 12 Apr 5:53 pm MDT
Extended Forecast for

Hill City SD

Red Flag Warning April 12, 06:04pm until April 13, 09:00pm
Click here for hazard details and duration
Red Flag Warning
  •  
    Red Flag Warning April 12, 06:04pm until April 13, 09:00pm

    NOW until 9:00pm Mon

    Red Flag Warning

  • Tonight

    Low: 43 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Monday

    Monday: Sunny, with a high near 63. Light southwest wind becoming west 10 to 15 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 southeast 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: Mostly clear, with a low around 44. West wind 3 to 6 mph. Winds could gust as high as 22 mph.

    Low: 44 °F

    Mostly Clear

  • Thursday

    Thursday: A chance of showers after noon. Mostly sunny, with a high near 65. West wind 6 to 10 mph, with gusts as high as 31 mph.

    High: 65 °F

    Mostly Sunny
    then Chance
    Showers

Detailed Forecast

Tonight
A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 43. Calm wind. Winds could gust as high as 15 mph.
Monday
Sunny, with a high near 63. Light southwest wind becoming west 10 to 15 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 southeast 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
Mostly clear, with a low around 44. West wind 3 to 6 mph. Winds could gust as high as 22 mph.
Thursday
A chance of showers after noon. Mostly sunny, with a high near 65. West wind 6 to 10 mph, with gusts as high as 31 mph.
Thursday Night
Rain and snow showers likely before midnight, then a chance of snow showers. Mostly cloudy, with a low around 26.
Friday
Snow showers likely. Mostly cloudy, with a high near 36.
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.
Saturday Night
Partly cloudy, with a low around 26.
Sunday
Sunny, with a high near 56.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hill City SD
 43.93°N 103.56°W (Elev. 5161 ft)
Last Update:
5:42 pm MDT Apr 12, 2026
Forecast Valid:
6pm MDT Apr 12, 2026-6pm MDT Apr 19, 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