Heat Persists in the Southwest; Elevated to Critical Fire Weather in the Great Basin; Poor Air Quality in the West

Dangerous heat will persist across the Southwest U.S. through this week, easing by next week. The heat will focus further east in the Great Plains and Mississippi Valley beginning next week. Elevated to locally critical fire weather conditions will persist for the Great Basin today. Poor air quality lingers for the Northwest, Great Basin, Central Rockies into the Plains. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

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

Mostly Cloudy

52°F

11°C

Humidity 66%
Wind Speed Calm
Barometer 30.25 in (1021.1 mb)
Dewpoint 41°F (5°C)
Visibility 9.00 mi
Last update 4 Aug 8:53 am MDT
Extended Forecast for

5 Miles WSW Mount Rushmore SD

  • Today

    Today: Areas of smoke. Mostly sunny, with a high near 61. Calm wind becoming south around 5 mph in the afternoon. Winds could gust as high as 17 mph.

    High: 61 °F

    Areas Smoke

  • Tonight

    Tonight: A slight chance of showers and thunderstorms between midnight and 3am, then a slight chance of showers after 3am.  Partly cloudy, with a low around 44. South wind around 5 mph, with gusts as high as 18 mph.  Chance of precipitation is 20%.

    Low: 44 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Wednesday

    Wednesday: Sunny, with a high near 70. Southwest wind 3 to 5 mph. Winds could gust as high as 21 mph.

    High: 70 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 50. Southwest wind 3 to 7 mph. Winds could gust as high as 18 mph.

    Low: 50 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 79. West wind 5 to 7 mph becoming light and variable. Winds could gust as high as 20 mph.

    High: 79 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 55. Northeast wind 5 to 7 mph becoming west after midnight. Winds could gust as high as 18 mph.

    Low: 55 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

Detailed Forecast

Today
Areas of smoke. Mostly sunny, with a high near 61. Calm wind becoming south around 5 mph in the afternoon. Winds could gust as high as 17 mph.
Tonight
A slight chance of showers and thunderstorms between midnight and 3am, then a slight chance of showers after 3am. Partly cloudy, with a low around 44. South wind around 5 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.
Wednesday
Sunny, with a high near 70. Southwest wind 3 to 5 mph. Winds could gust as high as 21 mph.
Wednesday Night
Mostly clear, with a low around 50. Southwest wind 3 to 7 mph. Winds could gust as high as 18 mph.
Thursday
Sunny, with a high near 79. West wind 5 to 7 mph becoming light and variable. Winds could gust as high as 20 mph.
Thursday Night
Mostly clear, with a low around 55. Northeast wind 5 to 7 mph becoming west after midnight. Winds could gust as high as 18 mph.
Friday
Sunny, with a high near 82.
Friday Night
Mostly clear, with a low around 58.
Saturday
Sunny, with a high near 84.
Saturday Night
Mostly clear, with a low around 57.
Sunday
Mostly sunny, with a high near 82.
Sunday Night
Partly cloudy, with a low around 57.
Monday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 80.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WSW Mount Rushmore SD
 43.85°N 103.55°W (Elev. 6490 ft)
8:51 am MDT Aug 4, 2026
9am MDT Aug 4, 2026-6pm MDT Aug 10, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database