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Hazardous Weather Conditions
Current conditions at
Yankton, Chan Gurney Municipal Airport (KYKN)
Lat: 42.92°NLon: 97.38°WElev: 1306ft.
Fair
89°F
32°C
| Humidity | 72% |
| Wind Speed | S 14 mph |
| Barometer | 29.83 in (1009.8 mb) |
| Dewpoint | 79°F (26°C) |
| Visibility | 10.00 mi |
| Heat Index | 104°F (40°C) |
| Last update | 26 Jul 11:56 am CDT |
Extended Forecast for
5 Miles W Mayfield SD
Extreme Heat Warning July 26, 12:33pm until July 26, 09:00pm
NOW until 9:00pm Sun

Extreme Heat Warning
This Afternoon

High: 102 °F
Hot
Tonight
Low: 75 °F
Slight Chance
T-storms then
Partly CloudyMonday

High: 97 °F
Patchy Smoke
Monday Night

Low: 72 °F
Increasing
CloudsTuesday

High: 93 °F
Partly Sunny
Tuesday Night

Low: 70 °F
Partly Cloudy
Wednesday

High: 95 °F
Hot
Wednesday Night

Low: 72 °F
Partly Cloudy
Detailed Forecast
This Afternoon
Sunny and hot, with a high near 102. Heat index values as high as 114. South wind around 15 mph, with gusts as high as 20 mph.
Tonight
A 20 percent chance of showers and thunderstorms before 11pm. Partly cloudy, with a low around 75. South wind 5 to 10 mph becoming northwest after midnight.
Monday
Patchy smoke between 9am and 2pm. Mostly sunny and hot, with a high near 97. North northwest wind 5 to 10 mph becoming east northeast in the afternoon.
Monday Night
Increasing clouds, with a low around 72. East wind 5 to 10 mph.
Tuesday
Partly sunny, with a high near 93. Southeast wind around 5 mph.
Tuesday Night
Partly cloudy, with a low around 70. South southeast wind 5 to 10 mph.
Wednesday
Mostly sunny and hot, with a high near 95.
Wednesday Night
Partly cloudy, with a low around 72.
Thursday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 88.
Thursday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.
Friday
Mostly sunny, with a high near 86.
Friday Night
Mostly clear, with a low around 66.
Saturday
Mostly sunny, with a high near 87.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
5 Miles W Mayfield SD
43.08°N 97.4°W (Elev. 1302 ft)
43.08°N 97.4°W (Elev. 1302 ft)
11:08 am CDT Jul 26, 2026
12pm CDT Jul 26, 2026-6pm CDT Aug 1, 2026



