Weather Alert
Lake Yankton Weather Warning NWS WEATHER ALERT FOR THE LAKE YANKTON, SD AREA - Issued: 343 AM CDT Tue Sep 1 2026 Lake Yankton Weather Warning

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Lake Yankton, SD Weather - Hour by Hour Forecast

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Lake Yankton, SD Weather - Hour by Hour Forecast

24 Hour Forecast

Current Conditions - Clear. Temperature is 68°F20°C, dew point 68°F20°C, humidity 100%. Wind direction is N at 0 mph0 km/h with visibility of 10 mi16 km. Barometric pressure is 29.95 in1014 mb.
Today - Mostly cloudy. Highs in the upper 80s. East winds 5 to 10 mph... Full Forecast
Tonight - Showers likely with a chance of thunderstorms. Humid with lows in the mid 60s. Northeast winds 5 to 10 mph. Chance of rain 70 perc.. Full Forecast

Lake Yankton Hourly Weather

24 Hour Forecast Scroll
Tue, Sep 01
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Tue, Sep 01
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Tue, Sep 01
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Midnight
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Lake Yankton, SD Hourly Weather - Partly Cloudy - 4:00 AM Lake Yankton, SD Hourly Weather - Partly Cloudy - 5:00 AM Lake Yankton, SD Hourly Weather - Mostly Cloudy - 6:00 AM Lake Yankton, SD Hourly Weather - Mostly Cloudy - 7:00 AM Lake Yankton, SD Hourly Weather - Mostly Cloudy - 8:00 AM Lake Yankton, SD Hourly Weather - Cloudy - 9:00 AM Lake Yankton, SD Hourly Weather - Cloudy - 10:00 AM Lake Yankton, SD Hourly Weather - Cloudy - 11:00 AM Lake Yankton, SD Hourly Weather - Mostly Cloudy - 12:00 PM Lake Yankton, SD Hourly Weather - Mostly Cloudy - 1:00 PM Lake Yankton, SD Hourly Weather - Mostly Cloudy - 2:00 PM Lake Yankton, SD Hourly Weather - Partly Cloudy - 3:00 PM Lake Yankton, SD Hourly Weather - Partly Cloudy - 4:00 PM Lake Yankton, SD Hourly Weather - Partly Cloudy - 5:00 PM Lake Yankton, SD Hourly Weather - Mostly Cloudy - 6:00 PM Lake Yankton, SD Hourly Weather - Mostly Cloudy - 7:00 PM Lake Yankton, SD Hourly Weather - Mostly Cloudy - 8:00 PM Lake Yankton, SD Hourly Weather - Cloudy - 9:00 PM Lake Yankton, SD Hourly Weather - Cloudy - 10:00 PM Lake Yankton, SD Hourly Weather - Cloudy - 11:00 PM Lake Yankton, SD Hourly Weather - Cloudy - 12:00 AM Lake Yankton, SD Hourly Weather - Cloudy - 1:00 AM Lake Yankton, SD Hourly Weather - Cloudy - 2:00 AM Lake Yankton, SD Hourly Weather - Cloudy - 3:00 AM
Partly Cloudy Partly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Cloudy Cloudy Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy
68°F20°C 68°F20°C 68°F20°C 68°F20°C 71°F22°C 74°F23°C 77°F25°C 80°F27°C 82°F28°C 85°F29°C 86°F30°C 86°F30°C 87°F31°C 86°F30°C 84°F29°C 83°F28°C 80°F27°C 77°F25°C 74°F23°C 72°F22°C 71°F22°C 69°F21°C 68°F20°C 67°F19°C
- - - - - - - - - - - - - - - - Rain Rain Rain Rain Rain Rain Rain Rain
0% 0% 0% 0% 2% 2% 2% 2% 2% 2% 13% 13% 13% 13% 13% 13% 43% 43% 43% 43% 43% 43% 25% 25%
65°F18°C 65°F18°C 65°F18°C 65°F18°C 66°F19°C 66°F19°C 67°F19°C 67°F19°C 67°F19°C 67°F19°C 67°F19°C 67°F19°C 67°F19°C 67°F19°C 67°F19°C 67°F19°C 67°F19°C 66°F19°C 66°F19°C 66°F19°C 65°F18°C 65°F18°C 64°F18°C 64°F18°C
90% 90% 90% 90% 84% 76% 71% 65% 61% 55% 53% 53% 52% 53% 57% 59% 65% 69% 76% 81% 81% 87% 87% 90%
ENE ENE ENE NE ENE ENE E E E E ESE ESE SE S SSW NW NNW N N SSW SE N N NNE
2 mph 2 mph 2 mph 2 mph 2 mph 5 mph 5 mph 5 mph 7 mph 7 mph 7 mph 7 mph 7 mph 7 mph 6 mph 6 mph 6 mph 8 mph 8 mph 8 mph 6 mph 6 mph 6 mph 4 mph
10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 6 mi10 km
Hour (CDT)
Weather
Clouds
Temperature
Precip. Type
POP
Dewpoint
Humidity
Wind Direction
Wind Speed
Visibility
POP = Probability of Precipitation. ** Indicates missing data/values from KYKN model statistics.

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Prob Precip % = Probability of Precipitation.

Lake Yankton 36 Hour Forecast

POP = Probability of Precipitation. ** Indicates missing data/values from model statistics.

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