Severe Weather and Heavy Rainfall from the Midwest to the Ohio Valley; Mid-Summer Heat Continues

Severe thunderstorm and heavy rainfall threats will persist from the Midwest to Lower Great Lakes through Monday, shifting into the Ohio Valley and Central Appalachians Monday evening into Tuesday. Mid-summer heat will continue across much of the CONUS this week, with record highs possible well into the 100s across the south-central High Plains. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

64°F

18°C

Humidity 73%
Wind Speed NE 3 mph
Barometer 30.13 in (1013.2 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 9 Aug 10:53 pm MDT
Extended Forecast for

Hill City SD

  • Tonight

    Tonight: Areas of smoke before midnight, then areas of smoke after 3am. Mostly clear, with a low around 60. Calm wind.

    Low: 60 °F

    Areas Smoke

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 3pm.  Areas of smoke. Mostly sunny, with a high near 92. Calm wind becoming south 5 to 9 mph in the afternoon. Winds could gust as high as 24 mph.

    High: 92 °F

    Areas Smoke
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: Areas of smoke. Partly cloudy, with a low around 61. Light and variable wind. Winds could gust as high as 18 mph.

    Low: 61 °F

    Areas Smoke

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms after noon.  Areas of smoke. Mostly sunny, with a high near 88. Calm wind becoming southeast around 6 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 88 °F

    Areas Smoke
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 61. East wind around 6 mph becoming calm  in the evening. Winds could gust as high as 18 mph.

    Low: 61 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly after noon.  Mostly cloudy, with a high near 78. Calm wind becoming east around 6 mph in the afternoon. Winds could gust as high as 21 mph.  Chance of precipitation is 70%.

    High: 78 °F

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely.  Cloudy, with a low around 54. Chance of precipitation is 70%.

    Low: 54 °F

    T-storms
    Likely

  • Thursday

    Thursday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after noon.  Cloudy, with a high near 65.

    High: 65 °F

    T-storms

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm.  Cloudy, with a low around 52.

    Low: 52 °F

    T-storms

Detailed Forecast

Tonight
Areas of smoke before midnight, then areas of smoke after 3am. Mostly clear, with a low around 60. Calm wind.
Monday
A 20 percent chance of showers and thunderstorms after 3pm. Areas of smoke. Mostly sunny, with a high near 92. Calm wind becoming south 5 to 9 mph in the afternoon. Winds could gust as high as 24 mph.
Monday Night
Areas of smoke. Partly cloudy, with a low around 61. Light and variable wind. Winds could gust as high as 18 mph.
Tuesday
A 30 percent chance of showers and thunderstorms after noon. Areas of smoke. Mostly sunny, with a high near 88. Calm wind becoming southeast around 6 mph in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 61. East wind around 6 mph becoming calm in the evening. Winds could gust as high as 18 mph.
Wednesday
Showers and thunderstorms likely, mainly after noon. Mostly cloudy, with a high near 78. Calm wind becoming east around 6 mph in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 70%.
Wednesday Night
Showers and thunderstorms likely. Cloudy, with a low around 54. Chance of precipitation is 70%.
Thursday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after noon. Cloudy, with a high near 65.
Thursday Night
Showers and possibly a thunderstorm. Cloudy, with a low around 52.
Friday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after noon. Mostly cloudy, with a high near 70.
Friday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 52.
Saturday
Showers and thunderstorms likely. Partly sunny, with a high near 72.
Saturday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 53.
Sunday
Showers and thunderstorms likely. Mostly sunny, with a high near 75.
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ABOUT THIS FORECAST

 
Point Forecast:
Hill City SD
 43.93°N 103.56°W (Elev. 5161 ft)
9:42 pm MDT Aug 9, 2026
11pm MDT Aug 9, 2026-6pm MDT Aug 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