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

Risks of Severe Thunderstorms and Excessive Rainfall; Fire Weather Concerns and Record Warmth

Severe thunderstorms and flash flooding risks increase across the center of the nation today. Meanwhile, ongoing thunderstorms and flash flooding will linger along the Gulf Coast states through the evening. The Great Basin and Intermountain West, warm temperatures and dry fuels with dry lightning may enhance fire weather potential. In addition, across interior Alaska, Red Flag Warning are posted. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

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

Overcast

56°F

13°C

Humidity 84%
Wind Speed Vrbl 3 mph
Barometer 29.98 in (1010.9 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 20 Jun 1:53 pm MDT
Extended Forecast for

Mount Rushmore SD

  • This Afternoon

    This Afternoon: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 65. Southeast wind around 8 mph, with gusts as high as 26 mph.

    High: 65 °F

    Chance
    T-storms

  • Tonight

    Tonight: Showers and possibly a thunderstorm before 9pm, then a chance of thunderstorms between 9pm and 11pm, then a chance of showers and thunderstorms after 11pm. Patchy fog after 3am. Low around 53. Southeast wind around 6 mph becoming calm in the evening. Winds could gust as high as 22 mph. Chance of precipitation is 80%.

    Low: 53 °F

    Showers then
    Chance
    T-storms and
    Patchy Fog

  • Sunday

    Sunday: Showers and possibly a thunderstorm. Patchy fog before 9am. High near 64. Light and variable wind becoming north 5 to 8 mph in the morning. Winds could gust as high as 25 mph. Chance of precipitation is 80%.

    High: 64 °F

    Showers and
    Patchy Fog

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly cloudy, with a low around 48. North wind around 6 mph becoming calm in the evening. Winds could gust as high as 22 mph. Chance of precipitation is 30%.

    Low: 48 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Monday

    Monday: A chance of showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 66. Calm wind becoming southeast around 6 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 70%.

    High: 66 °F

    Chance
    Showers then
    Showers
    Likely

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm before midnight, then a chance of showers. Mostly cloudy, with a low around 48. Calm wind becoming northwest around 5 mph after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 70%.

    Low: 48 °F

    Showers
    Likely then
    Chance
    Showers

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

  • Wednesday

    Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly sunny, with a high near 66.

    High: 66 °F

    Slight Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

This Afternoon
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 65. Southeast wind around 8 mph, with gusts as high as 26 mph.
Tonight
Showers and possibly a thunderstorm before 9pm, then a chance of thunderstorms between 9pm and 11pm, then a chance of showers and thunderstorms after 11pm. Patchy fog after 3am. Low around 53. Southeast wind around 6 mph becoming calm in the evening. Winds could gust as high as 22 mph. Chance of precipitation is 80%.
Sunday
Showers and possibly a thunderstorm. Patchy fog before 9am. High near 64. Light and variable wind becoming north 5 to 8 mph in the morning. Winds could gust as high as 25 mph. Chance of precipitation is 80%.
Sunday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly cloudy, with a low around 48. North wind around 6 mph becoming calm in the evening. Winds could gust as high as 22 mph. Chance of precipitation is 30%.
Monday
A chance of showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 66. Calm wind becoming southeast around 6 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 70%.
Monday Night
Showers likely and possibly a thunderstorm before midnight, then a chance of showers. Mostly cloudy, with a low around 48. Calm wind becoming northwest around 5 mph after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 70%.
Tuesday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 68.
Tuesday Night
Mostly clear, with a low around 45.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly sunny, with a high near 66.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 48.
Thursday
Showers likely and possibly a thunderstorm. Mostly sunny, with a high near 69.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 53.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 77.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mount Rushmore SD
 43.89°N 103.46°W (Elev. 5108 ft)
Last Update:
1:49 pm MDT Jun 20, 2026
Forecast Valid:
2pm MDT Jun 20, 2026-6pm MDT Jun 26, 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