Yankton, SD 57078 Monthly Weather

Yankton County9:18 PM CDT42.88°N, 97.40°W
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October 2026

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21 Mostly Clear then Patchy Fog –/49°
22 Patchy Fog then Mostly Sunny 79°/59°
23 Slight Chance Rain Showers 81°/62°
24 Chance Rain Showers 74°/48°
25 Rain Showers Likely 58°/43°
26 Rain Showers Likely 53°/40°
27 Chance Rain Showers 56°/43°
28 Slight Chance Rain Showers 61°/–
29 Cloudy 52°/39°
30 Mostly sunny 55°/36°
31
Record high today88° (1947)
Record low today16° (1989)

Observed: Yankton 2 E, 3 km away, records since 1932. Normals 1991–2020. Climate data from NOAA's Regional Climate Centers (ACIS); recent days are preliminary. Days ahead: the forecast.

Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Conservative index and reflects what the press published. Terms of use.