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

Heavy Rainfall for the Mid-Atlantic; Heat and Wildfire Concerns for the West

Slow moving showers and thunderstorms may result in flash flooding for portions of the mid-Atlantic region today into tonight. Meanwhile, excessive heat will continue to build across the West through Tuesday. Heat Advisories and Extreme Heat Warnings are in effect. Fire Weather concerns continue for the interior Northwest with dry and breezy conditions. Watching the tropics across the Southeast. Read More >

Hazardous Weather Conditions

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

76°F

24°C

Humidity 36%
Wind Speed S 3 mph
Barometer 30.02 in (1010.0 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 14 Jul 4:53 pm MDT
Extended Forecast for

5 Miles NW Hill City SD

  • This Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 86. Northeast wind around 5 mph.

    High: 86 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, with a low around 57. Northeast wind around 5 mph becoming southwest after midnight. Winds could gust as high as 15 mph.

    Low: 57 °F

    Chance
    T-storms then
    Isolated
    T-storms

  • Tuesday

    Tuesday: Showers and thunderstorms likely, mainly between noon and 3pm. Partly sunny, with a high near 70. West wind 5 to 10 mph becoming northeast in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 60%.

    High: 70 °F

    Mostly Sunny
    then T-storms
    Likely

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Low around 47. Northeast wind around 5 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.

    Low: 47 °F

    Showers

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. High near 55. East wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 90%.

    High: 55 °F

    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Cloudy, with a low around 44. Northeast wind around 5 mph becoming southeast after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 50%.

    Low: 44 °F

    Chance
    Showers

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after noon. Cloudy, then gradually becoming mostly sunny, with a high near 66. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 66 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 54. South wind around 5 mph becoming southwest after midnight. Winds could gust as high as 20 mph.

    Low: 54 °F

    Slight Chance
    T-storms

  • Friday

    Friday: A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 86. Northeast wind around 5 mph.
Tonight
A 50 percent chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, with a low around 57. Northeast wind around 5 mph becoming southwest after midnight. Winds could gust as high as 15 mph.
Tuesday
Showers and thunderstorms likely, mainly between noon and 3pm. Partly sunny, with a high near 70. West wind 5 to 10 mph becoming northeast in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 60%.
Tuesday Night
Showers and possibly a thunderstorm. Low around 47. Northeast wind around 5 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Wednesday
Showers and possibly a thunderstorm. High near 55. East wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 90%.
Wednesday Night
A chance of showers and thunderstorms. Cloudy, with a low around 44. Northeast wind around 5 mph becoming southeast after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 50%.
Thursday
A 20 percent chance of showers and thunderstorms after noon. Cloudy, then gradually becoming mostly sunny, with a high near 66. South wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 54. South wind around 5 mph becoming southwest after midnight. Winds could gust as high as 20 mph.
Friday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 77.
Friday Night
A chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, with a low around 53.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 75.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 55.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 79.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 58.
Monday
A slight chance of showers and thunderstorms. Sunny, with a high near 81.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NW Hill City SD
 43.97°N 103.65°W (Elev. 5568 ft)
Last Update:
4:50 pm MDT Jul 14, 2025
Forecast Valid:
5pm MDT Jul 14, 2025-6pm MDT Jul 21, 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