10-day forecast for Yankton, SD: 58° to 101°, with precipitation expected on 5 days. The table below breaks each day into morning, afternoon, evening and overnight.
100°
Best day: Tuesday, August 11
76° · 0.22 in
Worst day: Thursday, August 13
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1097° / 66°0.17
Morning68°feels 68°
Afternoon84°feels 82°
Evening97°feels 94°
Overnight73°feels 73°
97 °
Yankton, Monday, 10 August
Rain. High 97°, low 66°.
Pressure29.85 inHg
Wind13.3 mph SE
Humidity34%
Visibility6.2 mi
Dew point58°
Tue, 11100° / 65°0
Morning69°feels 69°
Afternoon98°feels 98°
Evening93°feels 92°
Overnight76°feels 76°
100 °
Yankton, Tuesday, 11 August
Overcast. High 100°, low 65°.
Pressure29.77 inHg
Wind10.7 mph NE
Humidity38%
Visibility6.2 mi
Dew point62°
Wed, 1294° / 67°0.27
Morning68°feels 69°
Afternoon92°feels 91°
Evening87°feels 87°
Overnight68°feels 69°
94 °
Yankton, Wednesday, 12 August
Rain. High 94°, low 67°.
Pressure29.88 inHg
Wind7.2 mph E
Humidity45%
Visibility6.2 mi
Dew point62°
Thu, 1376° / 63°0.22
Morning64°feels 64°
Afternoon66°feels 66°
Evening73°feels 73°
Overnight64°feels 64°
76 °
Yankton, Thursday, 13 August
Rain. High 76°, low 63°.
Pressure30.00 inHg
Wind14.6 mph E
Humidity91%
Visibility—
Dew point62°
Fri, 1481° / 58°0.07
Morning65°feels 64°
Afternoon79°feels 79°
Evening66°feels 66°
Overnight64°feels 64°
81 °
Yankton, Friday, 14 August
Light rain. High 81°, low 58°.
Pressure30.09 inHg
Wind12.9 mph S
Humidity40%
Visibility—
Dew point52°
Sat, 1576° / 64°0.01
Morning67°feels 67°
Afternoon73°feels 73°
Evening73°feels 73°
Overnight65°feels 65°
76 °
Yankton, Saturday, 15 August
Light rain. High 76°, low 64°.
Pressure30.15 inHg
Wind10.3 mph SE
Humidity70%
Visibility—
Dew point62°
Sun, 1681° / 64°0
Morning70°feels 70°
Afternoon79°feels 79°
Evening77°feels 77°
Overnight69°feels 69°
81 °
Yankton, Sunday, 16 August
Overcast. High 81°, low 64°.
Pressure30.06 inHg
Wind9.3 mph SW
Humidity62%
Visibility—
Dew point63°
Mon, 1792° / 64°0
Morning71°feels 72°
Afternoon89°feels 92°
Evening88°feels 91°
Overnight75°feels 76°
92 °
Yankton, Monday, 17 August
Overcast. High 92°, low 64°.
Pressure29.97 inHg
Wind14.3 mph S
Humidity49%
Visibility—
Dew point64°
Tue, 18101° / 64°0.05
Morning73°feels 73°
Afternoon95°feels 94°
Evening94°feels 93°
Overnight77°feels 77°
101 °
Yankton, Tuesday, 18 August
Light rain. High 101°, low 64°.
Pressure29.91 inHg
Wind14 mph SW
Humidity29%
Visibility—
Dew point54°
About this forecast
How reliable is a 10-day forecast?
The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.
What does the time-of-day table show?
Temperature in Yankton, SD around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.
How is the best day chosen?
We weigh the daytime high against precipitation: a warm, dry day scores highest.