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Lake Herman Weather Warning NWS WEATHER ALERT FOR THE LAKE HERMAN, SD AREA - Issued: 859 PM CDT Sat Aug 15 2026 Lake Herman Weather Warning

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Lake Herman, SD Weather - Hour by Hour Forecast

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Lake Herman, SD Weather - Hour by Hour Forecast

24 Hour Forecast

Current Conditions - Clear. Temperature is 59°F15°C, dew point 59°F15°C, humidity 100%. Wind direction is NNW at 6 mph10 km/h with visibility of 10 mi16 km. Barometric pressure is 30.12 in1020 mb.
Rest of Tonight - Mostly cloudy. Cooler with lows in the upper 50s. Northwest winds around 5 mph... Full Forecast
Sunday - Mostly sunny. Highs in the upper 70s. North winds 10 to 15 mph... Full Forecast

Lake Herman Hourly Weather

24 Hour Forecast Scroll
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Lake Herman, SD Hourly Weather - Cloudy - 3:00 AM Lake Herman, SD Hourly Weather - Cloudy - 4:00 AM Lake Herman, SD Hourly Weather - Cloudy - 5:00 AM Lake Herman, SD Hourly Weather - Mostly Cloudy - 6:00 AM Lake Herman, SD Hourly Weather - Mostly Cloudy - 7:00 AM Lake Herman, SD Hourly Weather - Mostly Cloudy - 8:00 AM Lake Herman, SD Hourly Weather - Mostly Clear - 9:00 AM Lake Herman, SD Hourly Weather - Mostly Clear - 10:00 AM Lake Herman, SD Hourly Weather - Mostly Clear - 11:00 AM Lake Herman, SD Hourly Weather - Clear - 12:00 PM Lake Herman, SD Hourly Weather - Clear - 1:00 PM Lake Herman, SD Hourly Weather - Clear - 2:00 PM Lake Herman, SD Hourly Weather - Mostly Clear - 3:00 PM Lake Herman, SD Hourly Weather - Mostly Clear - 4:00 PM Lake Herman, SD Hourly Weather - Mostly Clear - 5:00 PM Lake Herman, SD Hourly Weather - Clear - 6:00 PM Lake Herman, SD Hourly Weather - Clear - 7:00 PM Lake Herman, SD Hourly Weather - Clear - 8:00 PM Lake Herman, SD Hourly Weather - Clear - 9:00 PM Lake Herman, SD Hourly Weather - Clear - 10:00 PM Lake Herman, SD Hourly Weather - Clear - 11:00 PM Lake Herman, SD Hourly Weather - Mostly Clear - 12:00 AM Lake Herman, SD Hourly Weather - Mostly Clear - 1:00 AM Lake Herman, SD Hourly Weather - Mostly Clear - 2:00 AM
Cloudy Cloudy Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Clear Mostly Clear Mostly Clear Clear Clear Clear Mostly Clear Mostly Clear Mostly Clear Clear Clear Clear Clear Clear Clear Mostly Clear Mostly Clear Mostly Clear
63°F17°C 63°F17°C 63°F17°C 62°F17°C 62°F17°C 64°F18°C 67°F19°C 69°F21°C 72°F22°C 74°F23°C 77°F25°C 78°F26°C 79°F26°C 80°F27°C 79°F26°C 79°F26°C 78°F26°C 75°F24°C 71°F22°C 68°F20°C 66°F19°C 65°F18°C 63°F17°C 62°F17°C
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2% 2% 2% 2% 2% 1% 1% 1% 1% 1% 1% 1% 1% 1% 1% 1% 1% 0% 0% 0% 0% 0% 0% 0%
63°F17°C 62°F17°C 62°F17°C 61°F16°C 61°F16°C 62°F17°C 63°F17°C 64°F18°C 63°F17°C 61°F16°C 60°F16°C 60°F16°C 60°F16°C 60°F16°C 60°F16°C 61°F16°C 61°F16°C 61°F16°C 61°F16°C 61°F16°C 60°F16°C 60°F16°C 59°F15°C 59°F15°C
100% 97% 97% 97% 97% 93% 87% 84% 73% 64% 56% 54% 52% 51% 52% 54% 56% 62% 71% 78% 81% 84% 87% 90%
N N N NNW NNW N N N N N NNW NNW NNW NNW NNW NW NW NNW NNW NNW SW SE NNE E
8 mph 8 mph 8 mph 6 mph 6 mph 6 mph 10 mph 10 mph 10 mph 11 mph 11 mph 11 mph 10 mph 10 mph 10 mph 10 mph 10 mph 10 mph 4 mph 4 mph 4 mph 3 mph 3 mph 3 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
Clouds
Temperature
Precip. Type
POP
Dewpoint
Humidity
Wind Direction
Wind Speed
Visibility
POP = Probability of Precipitation. ** Indicates missing data/values from KMDS model statistics.

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Prob Precip % = Probability of Precipitation.

Lake Herman 36 Hour Forecast

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

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