WeatherCentral - Yankton, SD
- Current conditions, seven day forecasts, area weather maps and satellite pictures.
- http://www.weathercentral.com/weather/us/cities/sd_yankton.html

The Weather Channel
- Current local weather conditions and 7-day forecast.
- http://www.weather.com/weather/local/USSD0392?x=0&lswe=Yankton+sd&lswa=WeatherLocalUndeclared&GO=GO&whatprefs=&y=0

Yankton Chamber of Commerce
- Includes an event calendar, community information, chamber membership directory and a guide for visitors.
- http://www.yanktonsd.com/

Lewis and Clark Lake
- Features general information about the lake and its statistics, a map and property listings.
- http://lewisandclarklake.com/