Lake Herman, SD 7-Day Weather Forecast

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Lake Herman, SD 7-Day Weather Forecast

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Lake Herman SD weather  - Overcast - 64°F
Overcast
64°F
Updated 12:47 am
Feels Like 66°F
Humidity 100%
Wind ENE 6 mph
Barometer  30.03 in
Dew Point 64°F
Lake Herman SD weather  - Overcast - 18°C
Overcast
18°C
Updated 12:47 am
Feels Like 19°C
Humidity 100%
Wind ENE 10 km/h
Barometer  101.7 kPa
Dew Point 18°C
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Lake Herman Weather Forecast

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Lake Herman, SD Weather Forecast Date: 955 PM CDT Thu Aug 13 2026

Weather forecast for Lake Herman, SD


Tonight
Lake Herman SD Weather for Tonight - Mostly Cloudy
Lo: 61°F
Lo: 16°C
Tonight... Mostly cloudy. Lows in the lower 60s. East winds 15 to 20 mph, diminishing to 5 to 10 mph after midnight.
Fri
Lake Herman SD Weather for Friday - Chance Of Showers
Hi: 75°FHi: 24°C
Lo: 61°F
Lo: 16°C
Friday... Mostly cloudy. A slight chance of showers in the morning, then a chance of showers in the afternoon. Humid with highs in the mid 70s. East winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 50%.
Sat
Lake Herman SD Weather for Saturday - Chance Of T-Storm
Hi: 79°FHi: 26°C
Lo: 60°F
Lo: 16°C
Saturday... Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the afternoon. Humid with highs in the upper 70s. Northwest winds 5 to 10 mph. Chance of rain 50%.
Sun
Lake Herman SD Weather for Sunday - Mostly Sunny
Hi: 75°FHi: 24°C
Lo: 55°F
Lo: 13°C
Sunday... Mostly sunny. Highs in the mid 70s.
Mon
Lake Herman SD Weather for Monday - Chance Of Showers
Hi: 79°FHi: 26°C
Lo: 60°F
Lo: 16°C
Monday... Mostly sunny. A chance of showers in the afternoon. Highs in the upper 70s. Chance of rain 30%.
Tue
Lake Herman SD Weather for Tuesday - Chance Of T-Storm
Hi: 79°FHi: 26°C
Lo: 59°F
Lo: 15°C
Tuesday... Mostly cloudy in the morning, then partly sunny with a chance of showers and thunderstorms in the afternoon. Highs in the upper 70s. Chance of rain 40%.
Wed
Lake Herman SD Weather for Wednesday - Mostly Cloudy
Hi: 75°FHi: 24°C
Lo: 59°F
Lo: 15°C
Wednesday... Mostly cloudy in the morning, then becoming partly sunny. Highs in the mid 70s.

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