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

Hot Temperatures in the West; Heavy Rainfall and Flooding Potential in the Southwest

Hot to extremely hot temperatures are in place across coastal southern California again today and the interior Northwest U.S into Thursday, with the Pacific Northwest carrying the potential for record-breaking high temperatures. A combination of monsoonal moisture and tropical moisture ahead of tropical cyclone Lorena will bring heavy rainfall and the potential for flooding through the week. Read More >

Hazardous Weather Conditions

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

54°F

12°C

Humidity 83%
Wind Speed N 6 mph
Barometer 30.21 in (1017.9 mb)
Dewpoint 49°F (9°C)
Visibility 9.00 mi
Wind Chill52°F (11°C)
Last update 3 Sep 7:53 am MDT
Extended Forecast for

Custer SD

  • Today

    Today: Patchy smoke. Mostly sunny, with a high near 70. North wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 70 °F

    Patchy Smoke

  • Tonight

    Tonight: Areas of smoke. Partly cloudy, with a low around 50. Northeast wind around 5 mph becoming calm. Winds could gust as high as 15 mph.

    Low: 50 °F

    Areas Smoke

  • Thursday

    Thursday: Areas of smoke. Mostly sunny, with a high near 74. Northwest wind 5 to 15 mph, with gusts as high as 35 mph.

    High: 74 °F

    Areas Smoke

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 37. North wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 30 mph.

    Low: 37 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 63. Northwest wind around 5 mph, with gusts as high as 20 mph.

    High: 63 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 35. North wind around 5 mph becoming calm in the evening. Winds could gust as high as 15 mph.

    Low: 35 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 66. Calm wind becoming southeast around 5 mph in the afternoon. Winds could gust as high as 15 mph.

    High: 66 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 42. Southeast wind around 5 mph becoming northeast after midnight. Winds could gust as high as 15 mph.

    Low: 42 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

Detailed Forecast

Today
Patchy smoke. Mostly sunny, with a high near 70. North wind 5 to 10 mph, with gusts as high as 20 mph.
Tonight
Areas of smoke. Partly cloudy, with a low around 50. Northeast wind around 5 mph becoming calm. Winds could gust as high as 15 mph.
Thursday
Areas of smoke. Mostly sunny, with a high near 74. Northwest wind 5 to 15 mph, with gusts as high as 35 mph.
Thursday Night
Partly cloudy, with a low around 37. North wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 30 mph.
Friday
Sunny, with a high near 63. Northwest wind around 5 mph, with gusts as high as 20 mph.
Friday Night
Clear, with a low around 35. North wind around 5 mph becoming calm in the evening. Winds could gust as high as 15 mph.
Saturday
Sunny, with a high near 66. Calm wind becoming southeast around 5 mph in the afternoon. Winds could gust as high as 15 mph.
Saturday Night
Mostly clear, with a low around 42. Southeast wind around 5 mph becoming northeast after midnight. Winds could gust as high as 15 mph.
Sunday
Mostly sunny, with a high near 73.
Sunday Night
Mostly cloudy, with a low around 51.
Monday
Mostly sunny, with a high near 76.
Monday Night
Partly cloudy, with a low around 50.
Tuesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 72.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Custer SD
 43.76°N 103.6°W (Elev. 5417 ft)
Last Update:
8:10 am MDT Sep 3, 2025
Forecast Valid:
8am MDT Sep 3, 2025-6pm MDT Sep 9, 2025
 
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Additional Resources

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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