Yankton County, SD Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Yankton County Weather Forecast
| TODAY | TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | COLUMBUS DAY | MONDAY NIGHT |
| Sunny | Partly Cloudy | Chance of Showers | Partly Cloudy | Sunny | Clear | Sunny | Mostly Clear | Sunny | Mostly Cloudy | Partly Sunny | Chance of Showers |
| Hi: 79°FHi: 26°C | Lo: 50°FLo: 10°C | Hi: 71°FHi: 22°C | Lo: 55°FLo: 13°C | Hi: 80°FHi: 27°C | Lo: 65°FLo: 18°C | Hi: 81°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 79°FHi: 26°C | Lo: 55°FLo: 13°C | Hi: 65°FHi: 18°C | Lo: 49°FLo: 9°C |
| POP: 20% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 639 AM CDT Wed Oct 07 2026 

Yankton County Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Yankton County Weather Map
Yankton County Quick Facts
Yankton County Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 632 AM CDT Wed Oct 7 2026
Key Messages
- Warm and predominantly dry conditions continue through most of the work week. However, some smaller rain chances (30%) will be possible from late Thursday into Friday mainly across northwestern IA.
- Drier and breezy conditions over the weekend could lead to some locally elevated fire concerns with more widespread concern possible by Saturday.
- Better rain chances (20-40%) and cooler temperatures look to return early next week, but confidence in details remains low.
Discussion
... Issued ...
Weather World