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

Extreme Heat and Excessive Rainfall Today

Dangerous and extreme heat will remain across portions of the southern U.S. through the weekend. A heat wave over the Southwest U.S. will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Multiple rounds of thunderstorms will produce heavy to excessive rainfall with significant flash flooding across portions of southern New England. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

60°F

16°C

Humidity 96%
Wind Speed N 7 mph
Barometer 30.10 in (1012.1 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 29 Jul 8:53 pm MDT
Extended Forecast for

Hill City SD

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 11pm. Mostly cloudy, with a low around 62. Calm wind. Chance of precipitation is 60%.

    Low: 62 °F

    T-storms
    Likely then
    Chance
    T-storms

  • Thursday

    Thursday: Showers and thunderstorms likely, mainly after noon. Cloudy, then gradually becoming mostly sunny, with a high near 82. Calm wind becoming north 5 to 7 mph in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 60%.

    High: 82 °F

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 56. North wind 5 to 7 mph becoming calm in the evening. Winds could gust as high as 23 mph.

    Low: 56 °F

    Mostly Clear

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 83. Calm wind becoming southeast around 5 mph. Winds could gust as high as 17 mph.

    High: 83 °F

    Sunny then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: Partly cloudy, with a low around 59. Light and variable wind. Winds could gust as high as 15 mph.

    Low: 59 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 89. Calm wind becoming south around 6 mph in the afternoon. Winds could gust as high as 21 mph.

    High: 89 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 66.

    Low: 66 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 97.

    High: 97 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 66.

    Low: 66 °F

    Mostly Clear

Detailed Forecast

Tonight
Showers and thunderstorms likely, mainly before 11pm. Mostly cloudy, with a low around 62. Calm wind. Chance of precipitation is 60%.
Thursday
Showers and thunderstorms likely, mainly after noon. Cloudy, then gradually becoming mostly sunny, with a high near 82. Calm wind becoming north 5 to 7 mph in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 60%.
Thursday Night
Mostly clear, with a low around 56. North wind 5 to 7 mph becoming calm in the evening. Winds could gust as high as 23 mph.
Friday
A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 83. Calm wind becoming southeast around 5 mph. Winds could gust as high as 17 mph.
Friday Night
Partly cloudy, with a low around 59. Light and variable wind. Winds could gust as high as 15 mph.
Saturday
Sunny, with a high near 89. Calm wind becoming south around 6 mph in the afternoon. Winds could gust as high as 21 mph.
Saturday Night
Mostly clear, with a low around 66.
Sunday
Sunny, with a high near 97.
Sunday Night
Mostly clear, with a low around 66.
Monday
Sunny, with a high near 83.
Monday Night
A chance of showers and thunderstorms. Mostly clear, with a low around 53.
Tuesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 73.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 53.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 78.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Hill City SD
 43.93°N 103.56°W (Elev. 5161 ft)
Last Update:
8:17 pm MDT Jul 29, 2026
Forecast Valid:
9pm MDT Jul 29, 2026-6pm MDT Aug 5, 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