Weather Alert
Swan Lake Weather Warning NWS WEATHER ALERT FOR THE SWAN LAKE, SD AREA - Issued: 152 PM CDT Sun Aug 9 2026 Swan Lake Weather Warning

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Swan Lake, SD Weather - Hour by Hour Forecast

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Swan Lake, SD Weather - Hour by Hour Forecast

24 Hour Forecast

Current Conditions - Overcast. Temperature is 81°F27°C, dew point 75°F24°C, humidity 82%. Wind direction is NE at 8 mph13 km/h with visibility of 10 mi16 km. Barometric pressure is 29.86 in1011 mb.
Tonight - Mostly cloudy. A chance of sprinkles this evening, then a slight chance of showers and thunderstorms after midnight. Patchy fog af.. Full Forecast
Monday - Partly sunny. A slight chance of showers and thunderstorms in the morning. Humid with highs in the mid 80s. East winds 10 to 15 mp.. Full Forecast

Swan Lake Hourly Weather

24 Hour Forecast Scroll
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Swan Lake, SD Hourly Weather - Mostly Cloudy - 2:00 PM Swan Lake, SD Hourly Weather - Mostly Cloudy - 3:00 PM Swan Lake, SD Hourly Weather - Mostly Cloudy - 4:00 PM Swan Lake, SD Hourly Weather - Mostly Cloudy - 5:00 PM Swan Lake, SD Hourly Weather - Mostly Cloudy - 6:00 PM Swan Lake, SD Hourly Weather - Mostly Cloudy - 7:00 PM Swan Lake, SD Hourly Weather - Mostly Cloudy - 8:00 PM Swan Lake, SD Hourly Weather - Mostly Cloudy - 9:00 PM Swan Lake, SD Hourly Weather - Mostly Cloudy - 10:00 PM Swan Lake, SD Hourly Weather - Mostly Cloudy - 11:00 PM Swan Lake, SD Hourly Weather - Mostly Cloudy - 12:00 AM Swan Lake, SD Hourly Weather - Mostly Cloudy - 1:00 AM Swan Lake, SD Hourly Weather - Mostly Cloudy - 2:00 AM Swan Lake, SD Hourly Weather - Cloudy - 3:00 AM Swan Lake, SD Hourly Weather - Cloudy - 4:00 AM Swan Lake, SD Hourly Weather - Cloudy - 5:00 AM Swan Lake, SD Hourly Weather - Cloudy - 6:00 AM Swan Lake, SD Hourly Weather - Cloudy - 7:00 AM Swan Lake, SD Hourly Weather - Cloudy - 8:00 AM Swan Lake, SD Hourly Weather - Mostly Clear - 9:00 AM Swan Lake, SD Hourly Weather - Mostly Clear - 10:00 AM Swan Lake, SD Hourly Weather - Mostly Clear - 11:00 AM Swan Lake, SD Hourly Weather - Clear - 12:00 PM Swan Lake, SD Hourly Weather - Clear - 1:00 PM
Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Mostly Clear Mostly Clear Mostly Clear Clear Clear
91°F33°C 92°F33°C 93°F34°C 92°F33°C 92°F33°C 91°F33°C 88°F31°C 84°F29°C 81°F27°C 79°F26°C 78°F26°C 76°F24°C 74°F23°C 73°F23°C 71°F22°C 70°F21°C 69°F21°C 68°F20°C 71°F22°C 75°F24°C 78°F26°C 81°F27°C 83°F28°C 86°F30°C
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0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 22% 22% 22% 22% 22% 22% 3% 3% 3% 3% 3% 3%
71°F22°C 71°F22°C 70°F21°C 70°F21°C 70°F21°C 70°F21°C 70°F21°C 70°F21°C 70°F21°C 69°F21°C 69°F21°C 68°F20°C 67°F19°C 67°F19°C 66°F19°C 66°F19°C 65°F18°C 65°F18°C 66°F19°C 68°F20°C 69°F21°C 70°F21°C 70°F21°C 71°F22°C
52% 51% 47% 49% 49% 50% 55% 63% 69% 72% 74% 76% 79% 82% 84% 87% 87% 90% 84% 79% 74% 69% 65% 61%
N NNE NNE NE NE NE NE NE NE NE NE NE NE NE NE NE NE ENE ENE E E E E ESE
6 mph 8 mph 8 mph 8 mph 8 mph 8 mph 8 mph 7 mph 7 mph 7 mph 6 mph 6 mph 6 mph 14 mph 14 mph 14 mph 10 mph 10 mph 10 mph 12 mph 12 mph 12 mph 11 mph 11 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 10 mi16 km
Hour (CDT)
Weather
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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.

Swan Lake 36 Hour Forecast

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

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