| NWS Forecast for: Yankton SD Issued by: National Weather Service Sioux Falls, SD Last Update: 4:48 am CDT Jun 30, 2026 |  |
Today: Sunny and hot, with a high near 96. South wind around 5 mph becoming west in the morning. Tonight: A chance of showers and thunderstorms before 4am, then showers likely and possibly a thunderstorm between 4am and 5am, then a chance of showers and thunderstorms after 5am. Increasing clouds, with a low around 69. South wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms. Wednesday: Rain and thunderstorms likely before 2pm, then a chance of rain after 3pm. Mostly cloudy, then gradually becoming sunny, with a high near 93. Southeast wind around 10 mph becoming west southwest in the afternoon. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms. Wednesday Night: A chance of rain and thunderstorms before 7pm, then a slight chance of showers and thunderstorms between 7pm and 1am. Partly cloudy, with a low around 68. West wind 5 to 10 mph becoming light and variable in the evening. Chance of precipitation is 20%. Thursday: A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 95. South southeast wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph. Thursday Night: Showers likely and possibly a thunderstorm before 1am, then a slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 70. South wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. Friday: Mostly sunny and hot, with a high near 96. Friday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Partly cloudy, with a low around 72. Chance of precipitation is 60%. Independence Day: Partly sunny, with a high near 94. Saturday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Partly cloudy, with a low around 67. Chance of precipitation is 70%. Sunday: Partly sunny, with a high near 90. Sunday Night: Mostly clear, with a low around 66. Monday: Mostly sunny, with a high near 92. | |
| Yankton SD 42.88°N 97.4°W (Elev. 1204 ft) | |
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