Yankton

Perkins County, South Dakota, United States

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Current Weather

12°

Clear

Feels Like: 12°

Min: 12°

Max: 19°

The next few hours will be clear, with today reaching 19°C and dropping to 17°C. The coming days will be mostly cloudy

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Hourly Forecast

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Daylight Hours

07:16

Sunrise

19:30

Sunset

12 hours 13 minutes of sunlight today

Moon

Waxing Crescent

13:22

Moonrise

21:29

Moonset

Daily Forecast

Today

12°
19°

Thursday

17°
24°

Friday

20°
29°

Saturday

17°
21°

Sunday

15°
20°

Monday

14°
20°

Tuesday

13°
23°

Wednesday

13°
23°

Thursday

15°
22°

Friday

18°
24°

Air Quality Data Available

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UV Index

No protection needed
0 Low
Low Extreme

Humidity

95% Very Humid
Low High

Weather in Yankton today, September 16, 2026

Yankton looks cloudy on September 16, 2026, with grey skies for much of the day. Sunshine stays limited, so the overall tone is muted from the morning onward. Expect a grey start, with morning cloud around 100% by 09:00. Outdoor plans early on should not rely on bright skies.

The day peaks near 19°C and cools toward 12°C. The air stays humid, with relative humidity between 66% and 100% and the peak around 23:00. A lighter breeze peaks around 11:00 near 4.8 km/h.

Through the afternoon cloud remains the main feature, with cover near 100% around 12:00. Bright spells should stay limited even as the day wears on. Horizontal visibility sits around 15.0 km, briefly nearer 9.6 km. The sun rises at 07:16 and sets at 19:30, for a total of 12 hours 13 minutes of sunlight today.

In short, cloud leads the story in Yankton on September 16, 2026; expect limited sun and a peak around 19°C.

Frequently asked questions about weather in Yankton

How warm does it get in Yankton?

The warmest month in Yankton is July, with average high temperatures of 30°C. The average temperature during this period is around 25°C.

How cold does it get in Yankton?

The coldest month in Yankton is January, with average low temperatures of -9°C. The average temperature during this period is around -6°C.

What is the wettest time of year in Yankton?

The wettest month in Yankton is May, with an average of 131mm of precipitation.

What is the driest time of year in Yankton?

The driest month in Yankton is February, with an average of 22mm of precipitation.

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Metric (°C, km/h)