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 85°F29°C, dew point 73°F23°C, humidity 67%. Wind direction is E at 12 mph19 km/h with visibility of 10 mi16 km. Barometric pressure is 29.94 in1014 mb.
Today - Mostly cloudy early, then becoming partly sunny. Highs in the upper 80s. Northeast winds around 5 mph, becoming southeast... Full Forecast
Tonight - Mostly cloudy. Showers and thunderstorms likely, mainly in the evening. Some thunderstorms May be severe. Some thunderstorms May b.. Full Forecast

Lake Yankton Hourly Weather

24 Hour Forecast Scroll
Tue, Sep 01
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Midnight
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Noon
Lake Yankton, SD Hourly Weather - Mostly Clear - 1:00 PM Lake Yankton, SD Hourly Weather - Mostly Clear - 2:00 PM Lake Yankton, SD Hourly Weather - Clear - 3:00 PM Lake Yankton, SD Hourly Weather - Clear - 4:00 PM Lake Yankton, SD Hourly Weather - Clear - 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 - Mostly Cloudy - 9:00 PM Lake Yankton, SD Hourly Weather - Mostly Cloudy - 10:00 PM Lake Yankton, SD Hourly Weather - Mostly Cloudy - 11:00 PM Lake Yankton, SD Hourly Weather - Mostly Cloudy - 12:00 AM Lake Yankton, SD Hourly Weather - Mostly Cloudy - 1:00 AM Lake Yankton, SD Hourly Weather - Mostly Cloudy - 2:00 AM Lake Yankton, SD Hourly Weather - Cloudy - 3:00 AM Lake Yankton, SD Hourly Weather - Cloudy - 4:00 AM Lake Yankton, SD Hourly Weather - 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 - Partly Cloudy - 9:00 AM Lake Yankton, SD Hourly Weather - Partly Cloudy - 10:00 AM Lake Yankton, SD Hourly Weather - Partly Cloudy - 11:00 AM Lake Yankton, SD Hourly Weather - Clear - 12:00 PM
Mostly Clear Mostly Clear Clear Clear Clear Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Cloudy Cloudy Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Clear
87°F31°C 88°F31°C 88°F31°C 89°F32°C 88°F31°C 86°F30°C 85°F29°C 82°F28°C 79°F26°C 76°F24°C 75°F24°C 73°F23°C 72°F22°C 71°F22°C 69°F21°C 68°F20°C 67°F19°C 66°F19°C 65°F18°C 69°F21°C 72°F22°C 76°F24°C 79°F26°C 83°F28°C
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6% 6% 6% 6% 6% 6% 6% 54% 54% 54% 54% 54% 54% 9% 9% 9% 9% 9% 9% 6% 6% 6% 6% 6%
66°F19°C 66°F19°C 67°F19°C 67°F19°C 67°F19°C 67°F19°C 67°F19°C 67°F19°C 68°F20°C 68°F20°C 67°F19°C 67°F19°C 66°F19°C 65°F18°C 65°F18°C 64°F18°C 64°F18°C 63°F17°C 63°F17°C 64°F18°C 66°F19°C 67°F19°C 68°F20°C 68°F20°C
50% 48% 50% 48% 50% 53% 55% 61% 69% 76% 76% 82% 81% 81% 87% 87% 90% 90% 93% 84% 81% 74% 69% 61%
E E E ESE E ENE NE SSE SSW N SSW SSE NE ENE E E E ENE ENE E E ESE SE SE
5 mph 5 mph 7 mph 7 mph 7 mph 5 mph 5 mph 5 mph 8 mph 8 mph 8 mph 6 mph 6 mph 6 mph 3 mph 3 mph 3 mph 4 mph 4 mph 4 mph 5 mph 5 mph 5 mph 6 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 6 mi10 km 6 mi10 km 5 mi8 km 6 mi10 km 6 mi10 km 10 mi16 km 10 mi16 km 10 mi16 km
Hour (CDT)
Weather
Clouds
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POP
Dewpoint
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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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