Sunday
Hot
High:
100°F
Sunny and hot, with a high near 100. Heat index values as high as 104. South wind 5 to 10 mph.
Yankton, SD Weather - Extended Forecast
Sunday Night
Mostly clear
Overnight low:
79°F
Mostly clear, with a low around 79. South wind 10 to 15 mph, with gusts as high as 20 mph.
Monday
Hot
High:
105°F
Sunny and hot, with a high near 105. South southwest wind around 10 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.
Monday Night
Mostly clear
Overnight low:
71°F
Mostly clear, with a low around 71.
Tuesday
Mostly sunny
High:
91°F
Tuesday Night
Mostly clear
Overnight low:
63°F
Wednesday
Partly sunny
High:
87°F
Wednesday Night
Partly cloudy
Overnight low:
64°F
Thursday
Partly sunny
High:
87°F
Thursday Night
Partly cloudy
Overnight low:
64°F
Friday
Mostly sunny
High:
90°F