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

Severe Weather and Flooding Threats for the Central U.S.; Dangerous Heat in the Southern and Western U.S.

Severe weather and flooding threats will continue for portions of the central U.S. over the next couple of days, with multiple rounds of thunderstorms expected. Dangerous heat will persist across the southern and western U.S. through mid-week. Hot and dry conditions will fuel fire weather concerns for the Intermountain West, where dry thunderstorms may spark additional wildfires. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

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

Overcast

53°F

12°C

Humidity 96%
Wind Speed NE 9 mph
Barometer 30.30 in (1022.4 mb)
Dewpoint 52°F (11°C)
Visibility 9.00 mi
Wind Chill50°F (10°C)
Last update 23 Jun 2:53 pm MDT
Extended Forecast for

Custer SD

  • This Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms, mainly before 4pm. Mostly cloudy, with a high near 62. East wind 3 to 5 mph.

    High: 62 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 46. Light and variable wind.

    Low: 46 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 63. Calm wind becoming east 5 to 8 mph in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 40%.

    High: 63 °F

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 45. East wind 5 to 7 mph becoming calm in the evening. Winds could gust as high as 17 mph. Chance of precipitation is 50%.

    Low: 45 °F

    Chance
    Showers

  • Thursday

    Thursday: Showers, with thunderstorms also possible after noon. High near 58. Calm wind becoming southeast 5 to 9 mph in the morning. Winds could gust as high as 24 mph. Chance of precipitation is 90%.

    High: 58 °F

    Showers

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms between midnight and 3am, then a chance of showers after 3am. Low around 49. Southeast wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 21 mph. Chance of precipitation is 90%.

    Low: 49 °F

    Showers then
    Chance
    Showers

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 55.

    Low: 55 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms, mainly before 4pm. Mostly cloudy, with a high near 62. East wind 3 to 5 mph.
Tonight
A 20 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 46. Light and variable wind.
Wednesday
A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 63. Calm wind becoming east 5 to 8 mph in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 40%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 45. East wind 5 to 7 mph becoming calm in the evening. Winds could gust as high as 17 mph. Chance of precipitation is 50%.
Thursday
Showers, with thunderstorms also possible after noon. High near 58. Calm wind becoming southeast 5 to 9 mph in the morning. Winds could gust as high as 24 mph. Chance of precipitation is 90%.
Thursday Night
Showers and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms between midnight and 3am, then a chance of showers after 3am. Low around 49. Southeast wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 21 mph. Chance of precipitation is 90%.
Friday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 74.
Friday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 55.
Saturday
Mostly sunny, with a high near 81.
Saturday Night
A chance of showers and thunderstorms, mainly before midnight. Partly cloudy, with a low around 53.
Sunday
A slight chance of showers and thunderstorms. Sunny, with a high near 75.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 47.
Monday
Mostly sunny, with a high near 72.
Monday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 49.
Tuesday
A slight chance of showers and thunderstorms. Sunny, with a high near 77.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Custer SD
 43.76°N 103.6°W (Elev. 5417 ft)
Last Update:
12:32 pm MDT Jun 23, 2026
Forecast Valid:
3pm MDT Jun 23, 2026-6pm MDT Jun 30, 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