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

Heavy Rainfall and Severe Thunderstorm Threats for the Plains and Southeast

A frontal boundary extending from the western High Plains to the Southeast will focus additional showers and thunderstorms this weekend. Some of these storms may become severe, alongside frequent lightning, and isolated instances of flash flooding. Meanwhile dry conditions will continue for the Great Basin where fire weather concerns linger. For the mid-Atlantic and Northeast, seasonable weather. Read More >

Hazardous Weather Conditions

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

78°F

26°C

Humidity 43%
Wind Speed SE 9 mph
Barometer 30.22 in (1016.6 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 2 Aug 2:53 pm MDT
Extended Forecast for

Hill City SD

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms. Sunny, with a steady temperature around 75. East wind around 5 mph.

    High: 75 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Increasing clouds, with a low around 59. East wind around 5 mph becoming calm.

    Low: 59 °F

    Increasing
    Clouds

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 73. Calm wind becoming northeast around 5 mph.

    High: 73 °F

    Partly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 56. Calm wind.

    Low: 56 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 78. Calm wind becoming southeast around 5 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 78 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 60. Southeast wind around 5 mph becoming southwest after midnight. Winds could gust as high as 15 mph.

    Low: 60 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 84. Southwest wind around 5 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 84 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 57. Northwest wind around 5 mph becoming calm in the evening. Winds could gust as high as 15 mph.

    Low: 57 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Sunny, with a steady temperature around 75. East wind around 5 mph.
Tonight
Increasing clouds, with a low around 59. East wind around 5 mph becoming calm.
Sunday
A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 73. Calm wind becoming northeast around 5 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 56. Calm wind.
Monday
Sunny, with a high near 78. Calm wind becoming southeast around 5 mph in the afternoon. Winds could gust as high as 20 mph.
Monday Night
Mostly clear, with a low around 60. Southeast wind around 5 mph becoming southwest after midnight. Winds could gust as high as 15 mph.
Tuesday
Sunny, with a high near 84. Southwest wind around 5 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 57. Northwest wind around 5 mph becoming calm in the evening. Winds could gust as high as 15 mph.
Wednesday
Sunny, with a high near 84.
Wednesday Night
Mostly clear, with a low around 62.
Thursday
Mostly sunny, with a high near 86.
Thursday Night
Partly cloudy, with a low around 59.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 80.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 55.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 72.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Hill City SD
 43.93°N 103.59°W (Elev. 5200 ft)
Last Update:
2:50 pm MDT Aug 2, 2025
Forecast Valid:
3pm MDT Aug 2, 2025-6pm MDT Aug 9, 2025
 
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