Yankton, SD Weather Forecast
Local 7-day forecast
Slight Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Yankton, SD in one place.
A slight chance of showers and thunderstorms before 5am. Partly cloudy, with a low around 66. South southeast wind around 5 mph. Chance of precipitation is 20%.
Local Weather Overview
This forecast page for Yankton, SD is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Aug 25, 2026 3:21 AM CDT.
The active forecast window currently covers Aug 25 to Aug 31, 2026 for Yankton, SD.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 25 to Aug 31, 2026
- Latest sync
- Aug 25, 2026 3:21 AM CDT
- Forecast office
- FSD
- Source
- NOAA / NWS
Daily Outlook
This Week in Yankton
Saturday looks like the warmest upcoming period in Yankton at 89 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 58 degrees F.
The strongest winds are forecast for Wednesday at about 5 to 15 mph NW.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 25, 2026 3:21 AM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- FSD
- Radar station
- KFSD
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly sunny. High near 88, with temperatures falling to around 85 in the afternoon. West wind 0 to 10 mph.
Partly cloudy, with a low around 62. West wind 5 to 10 mph.
Sunny, with a high near 83. Northwest wind 5 to 15 mph, with gusts as high as 25 mph.
Mostly clear, with a low around 58. Northwest wind 0 to 10 mph.
Sunny, with a high near 84. Northwest wind 0 to 5 mph.
Mostly clear, with a low around 61.
Mostly sunny, with a high near 85.
A chance of showers and thunderstorms after 7pm. Mostly cloudy, with a low around 68. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 7am. Partly sunny, with a high near 89. Chance of precipitation is 50%.
A slight chance of showers and thunderstorms between 7pm and 1am. Partly cloudy, with a low around 70.
Mostly sunny, with a high near 89.
A chance of showers and thunderstorms after 7pm. Partly cloudy, with a low around 67. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 7am. Partly sunny, with a high near 86. Chance of precipitation is 30%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Aug 25
|
Slight Chance Showers And Thunderstorms
|
66°F |
5 mph
SSE
|
|
Tuesday
Aug 25
|
Mostly Sunny
|
88°F |
0 to 10 mph
W
|
|
Tuesday Night
Aug 25
|
Partly Cloudy
|
62°F |
5 to 10 mph
W
|
|
Wednesday
Aug 26
|
Sunny
|
83°F |
5 to 15 mph
NW
|
|
Wednesday Night
Aug 26
|
Mostly Clear
|
58°F |
0 to 10 mph
NW
|
|
Thursday
Aug 27
|
Sunny
|
84°F |
0 to 5 mph
NW
|
|
Thursday Night
Aug 27
|
Mostly Clear
|
61°F |
5 mph
S
|
|
Friday
Aug 28
|
Mostly Sunny
|
85°F |
5 to 15 mph
SSE
|
|
Friday Night
Aug 28
|
Chance Showers And Thunderstorms
|
68°F |
15 mph
SSE
|
|
Saturday
Aug 29
|
Chance Showers And Thunderstorms then Partly Sunny
|
89°F |
15 mph
S
|
|
Saturday Night
Aug 29
|
Slight Chance Showers And Thunderstorms
|
70°F |
5 to 15 mph
S
|
|
Sunday
Aug 30
|
Mostly Sunny
|
89°F |
5 to 10 mph
S
|
|
Sunday Night
Aug 30
|
Chance Showers And Thunderstorms
|
67°F |
5 to 10 mph
ESE
|
|
Monday
Aug 31
|
Chance Showers And Thunderstorms then Partly Sunny
|
86°F |
5 to 10 mph
ENE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Yankton.
Nearby forecast pages are not available for this location yet.
