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

Excessive Rainfall Possible This Weekend; October Heat Wave in California

A slow moving front will be the focus area for heavy to excessive rainfall and a threat for flash/urban flooding across the northern Gulf Coast and Southeast U.S. through this weekend. Abnormally hot, potentially record-breaking, temperatures will impact southern California and stretch north toward the Bay Area and Central Valley into next week. Read More >

Current conditions at

Yankton, Chan Gurney Municipal Airport (KYKN)

Lat: 42.92°NLon: 97.38°WElev: 1306ft.

Fair

61°F

16°C

Humidity 48%
Wind Speed NW 9 mph
Barometer 30.38 in (1030.0 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 4 Oct 10:56 am CDT
Extended Forecast for

7 Miles SSE Clayton SD

  • Today

    Today: Sunny, with a high near 71. Northwest wind around 5 mph.

    High: 71 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 49. Calm wind becoming southeast around 5 mph after midnight.

    Low: 49 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 75. Breezy, with a south wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 35 mph.

    High: 75 °F

    Sunny then
    Sunny and
    Breezy

  • Monday Night

    Monday Night: Mostly clear, with a low around 57. South wind 10 to 15 mph, with gusts as high as 30 mph.

    Low: 57 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 79. South southwest wind 5 to 10 mph becoming north northwest in the afternoon.

    High: 79 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 54. North northwest wind around 5 mph.

    Low: 54 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 71. Northwest wind around 5 mph.
Tonight
Mostly clear, with a low around 49. Calm wind becoming southeast around 5 mph after midnight.
Monday
Sunny, with a high near 75. Breezy, with a south wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 35 mph.
Monday Night
Mostly clear, with a low around 57. South wind 10 to 15 mph, with gusts as high as 30 mph.
Tuesday
Sunny, with a high near 79. South southwest wind 5 to 10 mph becoming north northwest in the afternoon.
Tuesday Night
Mostly clear, with a low around 54. North northwest wind around 5 mph.
Wednesday
Sunny, with a high near 73.
Wednesday Night
Partly cloudy, with a low around 54.
Thursday
Mostly sunny, with a high near 70.
Thursday Night
Partly cloudy, with a low around 53.
Friday
Mostly sunny, with a high near 71.
Friday Night
Mostly clear, with a low around 60.
Saturday
Sunny, with a high near 78. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
7 Miles SSE Clayton SD
 43.35°N 97.62°W (Elev. 1250 ft)
Last Update:
10:58 am CDT Oct 4, 2026
Forecast Valid:
11am CDT Oct 4, 2026-6pm CDT Oct 10, 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