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Yankton SD Weather - Overcast - 63°F
Overcast
63°F
Updated 6:19 pm
Feels Like 65°F
Humidity 67%
Wind SE 12 mph
Barometer  30.12 in
Dew Point 52°F
Yankton SD Weather - Overcast - 17°C
Overcast
17°C
Updated 6:19 pm
Feels Like 18°C
Humidity 67%
Wind SE 19 km/h
Barometer  101.9 kPa
Dew Point 11°C
Yankton, SD Weather and Current Conditionsyankton sd weather forecast

Yankton, SD Weather Forecast

Yankton South Dakota WeatherYankton, South Dakota Weather Weather Forecast
14 day API weather forecast for Yankton, South Dakota. Note: The 7-day weather forecast for Yankton, SD is the most reliable and accurate weather forecast. This model should only be used as a likely scenario. It is difficult to predict weather more than 7 days ahead.
Yankton, SD Weather Forecast Dated: 619 PM Sun Sep 13 2026
Expect a mild stretch with a mix of sun and clouds and occasional showers over the coming period. moderate humidity and no major pressure swings will dominate.

Sunday, September 13, 2026

Mid-Morning
Yankton Weather - 2026-09-13 - Morning - Overcast
56°F 13°C
Overcast
Mid-Afternoon
Yankton Weather - 2026-09-13 - Afternoon - Sunny
75°F 24°C
Sunny
Early-Evening
Yankton Weather - 2026-09-13 - Evening - Sunny
70°F 21°C
Sunny
Pleasant near 75°F 24°C, overcast in the morning, sunny in the afternoon, and partly cloudy this evening, with steady humidity and barometric pressure falling. Winds turning from the E to the SE at 13 mph 21 km/h.

Monday, September 14, 2026

Mid-Morning
Yankton Weather - 2026-09-14 - Morning - Light Showers
58°F 14°C
Light Showers
Mid-Afternoon
Yankton Weather - 2026-09-14 - Afternoon - Scattered Showers
81°F 27°C
Scattered Showers
Early-Evening
Yankton Weather - 2026-09-14 - Evening - Overcast
80°F 27°C
Overcast
Balmy with temperatures reaching 81°F 27°C, scattered downpours possible, with lower humidity and barometric pressure falling. Winds switching from the SE to the NNW at 16 mph 26 km/h. Gusts up to 29 mph 47 km/h.

Tuesday, September 15, 2026

Mid-Morning
Yankton Weather - 2026-09-15 - Morning - Overcast
56°F 13°C
Overcast
Mid-Afternoon
Yankton Weather - 2026-09-15 - Afternoon - Sunny
72°F 22°C
Sunny
Early-Evening
Yankton Weather - 2026-09-15 - Evening - Sunny
69°F 21°C
Sunny
Enjoyable around 72°F 22°C, overcast in the morning, sunny in the afternoon, and cloudy this evening, with lower humidity and steady pressure. Winds decreasing from NNW 14 mph 22 km/h to ESE 5 mph 9 km/h.

Wednesday, September 16, 2026

Mid-Morning
Yankton Weather - 2026-09-16 - Morning - Overcast
56°F 14°C
Overcast
Mid-Afternoon
Yankton Weather - 2026-09-16 - Afternoon - Scattered Showers
54°F 12°C
Scattered Showers
Early-Evening
Yankton Weather - 2026-09-16 - Evening - Overcast
54°F 12°C
Overcast
Crisp with a high near 54°F 12°C, periods of heavy rain and gusty conditions, with increasing humidity and steady pressure. Winds out of the ESE at 9 mph 15 km/h.

Thursday, September 17, 2026

Mid-Morning
Yankton Weather - 2026-09-17 - Morning - Overcast
59°F 15°C
Overcast
Mid-Afternoon
Yankton Weather - 2026-09-17 - Afternoon - Overcast
79°F 26°C
Overcast
Early-Evening
Yankton Weather - 2026-09-17 - Evening - Overcast
70°F 21°C
Overcast
Mild with a high of 79°F 26°C, overcast throughout the day, with lower humidity and barometric pressure falling. Winds blowing from the SSE at 12 mph 19 km/h.

Friday, September 18, 2026

Mid-Morning
Yankton Weather - 2026-09-18 - Morning - Light Showers
67°F 19°C
Light Showers
Mid-Afternoon
Yankton Weather - 2026-09-18 - Afternoon - Cloudy
87°F 31°C
Cloudy
Early-Evening
Yankton Weather - 2026-09-18 - Evening - Cloudy
82°F 27°C
Cloudy
Warm and summery near 87°F 31°C, morning showers, giving way to clearing skies, with lower humidity and barometric pressure falling. Winds turning from the SE to the NW at 11 mph 17 km/h.

Saturday, September 19, 2026

Mid-Morning
Yankton Weather - 2026-09-19 - Morning - Overcast
64°F 18°C
Overcast
Mid-Afternoon
Yankton Weather - 2026-09-19 - Afternoon - Overcast
74°F 23°C
Overcast
Early-Evening
Yankton Weather - 2026-09-19 - Evening - Overcast
70°F 21°C
Overcast
Comfortable with temperatures reaching 74°F 23°C, overcast throughout the day, with lower humidity and steady pressure. Winds switching from the SE to the NE at 10 mph 15 km/h.

Sunday, September 20, 2026

Mid-Morning
Yankton Weather - 2026-09-20 - Morning - Cloudy
63°F 17°C
Cloudy
Mid-Afternoon
Yankton Weather - 2026-09-20 - Afternoon - Scattered Showers
66°F 19°C
Scattered Showers
Early-Evening
Yankton Weather - 2026-09-20 - Evening - Scattered Showers
63°F 17°C
Scattered Showers
Cool with a high near 66°F 19°C, scattered downpours possible, with steady humidity and steady pressure. Winds moving from the ENE to the ESE at 11 mph 17 km/h.

Monday, September 21, 2026

Mid-Morning
Yankton Weather - 2026-09-21 - Morning - Overcast
56°F 13°C
Overcast
Mid-Afternoon
Yankton Weather - 2026-09-21 - Afternoon - Cloudy
66°F 19°C
Cloudy
Early-Evening
Yankton Weather - 2026-09-21 - Evening - Sunny
63°F 17°C
Sunny
Refreshing around 66°F 19°C, cloudy in the morning, partly cloudy in the afternoon, and sunny this evening, with lower humidity and steady pressure.

Tuesday, September 22, 2026

Mid-Morning
Yankton Weather - 2026-09-22 - Morning - Light Fog
54°F 12°C
Light Fog
Mid-Afternoon
Yankton Weather - 2026-09-22 - Afternoon - Cloudy
70°F 21°C
Cloudy
Early-Evening
Yankton Weather - 2026-09-22 - Evening - Sunny
70°F 21°C
Sunny
Mild with a high of 70°F 21°C, sunny in the morning, partly cloudy in the afternoon, and overcast this evening, with lower humidity and barometric pressure falling. Winds SE at 9 mph 14 km/h.

Wednesday, September 23, 2026

Mid-Morning
Yankton Weather - 2026-09-23 - Morning - Light Fog
63°F 17°C
Light Fog
Mid-Afternoon
Yankton Weather - 2026-09-23 - Afternoon - Sunny
82°F 28°C
Sunny
Early-Evening
Yankton Weather - 2026-09-23 - Evening - Sunny
76°F 25°C
Sunny
Warm and summery near 82°F 28°C, partly cloudy in the morning, becoming sunny through the afternoon and evening, with lower humidity and steady pressure. Winds shifting from the SW to the ESE at 10 mph 15 km/h.

Thursday, September 24, 2026

Mid-Morning
Yankton Weather - 2026-09-24 - Morning - Sunny
58°F 15°C
Sunny
Mid-Afternoon
Yankton Weather - 2026-09-24 - Afternoon - Sunny
75°F 24°C
Sunny
Early-Evening
Yankton Weather - 2026-09-24 - Evening - Sunny
72°F 22°C
Sunny
Comfortable with temperatures reaching 75°F 24°C, sunny throughout the day, with lower humidity and steady pressure. Winds turning from the SSE to the SE at 13 mph 20 km/h. Gusts up to 24 mph 39 km/h.

Friday, September 25, 2026

Mid-Morning
Yankton Weather - 2026-09-25 - Morning - Sunny
61°F 16°C
Sunny
Mid-Afternoon
Yankton Weather - 2026-09-25 - Afternoon - Overcast
76°F 24°C
Overcast
Early-Evening
Yankton Weather - 2026-09-25 - Evening - Cloudy
73°F 23°C
Cloudy
Enjoyable around 76°F 24°C, sunny in the morning, cloudy in the afternoon, and overcast this evening, with steady humidity and steady pressure. Winds S at 19 mph 30 km/h. Gusts up to 27 mph 43 km/h.

Saturday, September 26, 2026

Mid-Morning
Yankton Weather - 2026-09-26 - Morning - Sunny
65°F 19°C
Sunny
Mid-Afternoon
Yankton Weather - 2026-09-26 - Afternoon - Sunny
82°F 28°C
Sunny
Early-Evening
Yankton Weather - 2026-09-26 - Evening - Sunny
76°F 25°C
Sunny
Warm temperatures up to 82°F 28°C, sunny throughout the day, with steady humidity and steady pressure. Winds moving from the S to the SSE at 15 mph 23 km/h. Gusts up to 27 mph 42 km/h.

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Weather by the Numbers

Sun, 13th
Yankton SD Weather - Sunday, Sep 13, 2026 - Sunny
Hi: 76°F 24°C
Lo: 55°F 13°C
Sunrise 07:07 AM
Sunset 07:43 PM
Wind ESE 9 mph14 km/h
Dew Point 37°F3°C
uv Index 3
Barometric Pressure 30.12 in1020 mb
POP 1% *
Humidity 32%
Mon, 14th
Yankton SD Weather - Monday, Sep 14, 2026 - Patchy Rain Nearby
Hi: 90°F 32°C
Lo: 57°F 14°C
Sunrise 07:08 AM
Sunset 07:41 PM
Wind S 17 mph28 km/h
Dew Point 57°F14°C
uv Index 1
Barometric Pressure 29.77 in1008 mb
POP 24% *
Humidity 64%
Tue, 15th
Yankton SD Weather - Tuesday, Sep 15, 2026 - Overcast
Hi: 73°F 23°C
Lo: 54°F 12°C
Sunrise 07:09 AM
Sunset 07:39 PM
Wind N 10 mph17 km/h
Dew Point 36°F2°C
uv Index 5
Barometric Pressure 30.18 in1022 mb
POP 10% *
Humidity 34%
Wed, 16th
Yankton SD Weather - Wednesday, Sep 16, 2026 - Light Rain Shower
Hi: 60°F 16°C
Lo: 53°F 12°C
Sunrise 07:11 AM
Sunset 07:38 PM
Wind ESE 9 mph14 km/h
Dew Point 49°F9°C
uv Index 0
Barometric Pressure 30.3 in1026 mb
POP 41% *
Humidity 85%
Thu, 17th
Yankton SD Weather - Thursday, Sep 17, 2026 - Overcast
Hi: 80°F 27°C
Lo: 56°F 13°C
Sunrise 07:12 AM
Sunset 07:36 PM
Wind SE 10 mph16 km/h
Dew Point 61°F16°C
uv Index 5
Barometric Pressure 30.21 in1023 mb
POP 20% *
Humidity 75%
Fri, 18th
Yankton SD Weather - Friday, Sep 18, 2026 - Overcast
Hi: 88°F 31°C
Lo: 64°F 18°C
Sunrise 07:13 AM
Sunset 07:34 PM
Wind SSW 12 mph20 km/h
Dew Point 61°F16°C
uv Index 6
Barometric Pressure 29.83 in1010 mb
POP 10% *
Humidity 58%
Sat, 19th
Yankton SD Weather - Saturday, Sep 19, 2026 - Patchy Rain Nearby
Hi: 74°F 23°C
Lo: 64°F 18°C
Sunrise 07:14 AM
Sunset 07:32 PM
Wind NNE 12 mph19 km/h
Dew Point 56°F13°C
uv Index 5
Barometric Pressure 29.94 in1014 mb
POP 15% *
Humidity 61%
Sun, 20th
Yankton SD Weather - Sunday, Sep 20, 2026 - Overcast
Hi: 68°F 20°C
Lo: 59°F 15°C
Sunrise 07:15 AM
Sunset 07:30 PM
Wind ENE 13 mph20 km/h
Dew Point 53°F12°C
uv Index 4
Barometric Pressure 30.03 in1017 mb
POP 15% *
Humidity 62%
Mon, 21st
Yankton SD Weather - Monday, Sep 21, 2026 - Partly Cloudy
Hi: 67°F 20°C
Lo: 54°F 12°C
Sunrise 07:16 AM
Sunset 07:29 PM
Wind NE 6 mph10 km/h
Dew Point 39°F4°C
uv Index 5
Barometric Pressure 30.12 in1020 mb
POP 7% *
Humidity 44%
Tue, 22nd
Yankton SD Weather - Tuesday, Sep 22, 2026 - Sunny
Hi: 72°F 22°C
Lo: 51°F 11°C
Sunrise 07:17 AM
Sunset 07:27 PM
Wind SE 9 mph14 km/h
Dew Point 43°F6°C
uv Index 5
Barometric Pressure 30.09 in1019 mb
POP 5% *
Humidity 50%
Wed, 23rd
Yankton SD Weather - Wednesday, Sep 23, 2026 - Sunny
Hi: 83°F 28°C
Lo: 59°F 15°C
Sunrise 07:18 AM
Sunset 07:25 PM
Wind WNW 11 mph17 km/h
Dew Point 56°F13°C
uv Index 6
Barometric Pressure 29.97 in1015 mb
POP 2% *
Humidity 53%
Thu, 24th
Yankton SD Weather - Thursday, Sep 24, 2026 - Sunny
Hi: 76°F 25°C
Lo: 54°F 12°C
Sunrise 07:19 AM
Sunset 07:23 PM
Wind SSE 11 mph18 km/h
Dew Point 48°F9°C
uv Index 6
Barometric Pressure 30.12 in1020 mb
POP 2% *
Humidity 49%
Fri, 25th
Yankton SD Weather - Friday, Sep 25, 2026 - Sunny
Hi: 77°F 25°C
Lo: 58°F 14°C
Sunrise 07:20 AM
Sunset 07:21 PM
Wind S 17 mph27 km/h
Dew Point 42°F6°C
uv Index 6
Barometric Pressure 30.03 in1017 mb
POP 6% *
Humidity 37%
Sat, 26th
Yankton SD Weather - Saturday, Sep 26, 2026 - Sunny
Hi: 83°F 28°C
Lo: 62°F 17°C
Sunrise 07:22 AM
Sunset 07:20 PM
Wind S 13 mph21 km/h
Dew Point 46°F8°C
uv Index 6
Barometric Pressure 30.03 in1017 mb
POP 1% *
Humidity 35%
* POP = Probability of Precipitation. Data for 12:00 PM.