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

Excessive Rainfall Possible for the Gulf Coast and Florida; 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 parts of the Gulf Coast into central/northern Florida early this week. Abnormally hot, potentially record-breaking, temperatures will continue for southern California and stretch north toward the Bay Area and Central Valley this week. Read More >

Current conditions at

Yankton, Chan Gurney Municipal Airport (KYKN)

Lat: 42.92°NLon: 97.38°WElev: 1306ft.

Fair

72°F

22°C

Humidity 28%
Wind Speed N 9 mph
Barometer 30.29 in (1026.7 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 4 Oct 3:56 pm CDT
Extended Forecast for

Yankton SD

  • Tonight

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

    Low: 49 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 75. Breezy, with a south wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 75 °F

    Sunny then
    Sunny and
    Breezy

  • Monday Night

    Monday Night: Clear, with a low around 58. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 58 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 79. 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 53. Calm wind.

    Low: 53 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 74. Calm wind becoming north northeast around 5 mph in the afternoon.

    High: 74 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 71.

    High: 71 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 49. Calm wind becoming east southeast around 5 mph.
Monday
Sunny, with a high near 75. Breezy, with a south wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Monday Night
Clear, with a low around 58. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday
Sunny, with a high near 79. Southwest wind 5 to 10 mph becoming north northwest in the afternoon.
Tuesday Night
Mostly clear, with a low around 53. Calm wind.
Wednesday
Sunny, with a high near 74. Calm wind becoming north northeast around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 52.
Thursday
Mostly sunny, with a high near 71.
Thursday Night
Partly cloudy, with a low around 52.
Friday
Mostly sunny, with a high near 72.
Friday Night
Mostly clear, with a low around 61.
Saturday
Sunny, with a high near 78. Breezy.
Saturday Night
Mostly clear, with a low around 63. Breezy.
Sunday
Mostly sunny, with a high near 73. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Yankton SD
 42.88°N 97.4°W (Elev. 1204 ft)
Last Update:
3:43 pm CDT Oct 4, 2026
Forecast Valid:
4pm CDT Oct 4, 2026-6pm CDT Oct 11, 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