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Lake Herman, SD 14 Day Weather - WeatherWorld.com
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Lake Herman, SD Weather Forecast
Lake Herman, SD Weather Forecast Dated: 601 AM Mon Sep 28 2026
Expect a cool pattern with a mix of sun and clouds and mostly dry weather over the coming period. moderate humidity and no major pressure swings will dominate.
Monday, September 28, 2026
Mid-Morning
59°F 15°C
Overcast
Mid-Afternoon
66°F 19°C
Overcast
Early-Evening
64°F 18°C
Overcast
Refreshing around 66°F 19°C, overcast throughout the day, with lower humidity and barometric pressure falling. Winds out of the SSE at 15 mph 24 km/h. Gusts up to 27 mph 43 km/h.
Tuesday, September 29, 2026
Mid-Morning
58°F 14°C
Scattered Showers
Mid-Afternoon
60°F 16°C
Scattered Showers
Early-Evening
61°F 16°C
Overcast
Mildly cool near 60°F 16°C, scattered downpours possible, with steady humidity and steady pressure. Winds switching from the S to the SSE at 7 mph 10 km/h.
Wednesday, September 30, 2026
Mid-Morning
58°F 15°C
Light Fog
Mid-Afternoon
65°F 18°C
Overcast
Early-Evening
67°F 19°C
Overcast
Comfortable at 65°F 18°C, overcast throughout the day, with steady humidity and steady pressure.
Thursday, October 1, 2026
Mid-Morning
48°F 9°C
Cloudy
Mid-Afternoon
59°F 15°C
Sunny
Early-Evening
57°F 14°C
Sunny
Cool with a high near 59°F 15°C, overcast in the morning, becoming sunny through the afternoon and evening, with lower humidity and steady pressure. Winds moving from the NNW to the NW at 7 mph 12 km/h.
Friday, October 2, 2026
Mid-Morning
52°F 11°C
Cloudy
Mid-Afternoon
57°F 14°C
Sunny
Early-Evening
57°F 14°C
Sunny
Brisk around 57°F 14°C, cloudy in the morning, sunny in the afternoon, and partly cloudy this evening, with steady humidity and barometric pressure falling. Winds swinging from the ESE to the SSE at 10 mph 16 km/h. Gusts up to 21 mph 34 km/h.
Saturday, October 3, 2026
Mid-Morning
46°F 8°C
Overcast
Mid-Afternoon
58°F 14°C
Cloudy
Early-Evening
60°F 16°C
Sunny
Mildly cool near 58°F 14°C, overcast in the morning, partly cloudy in the afternoon, and sunny this evening, with increasing humidity and barometric pressure falling. Winds tapering down from S 19 mph 30 km/h to SSW 11 mph 18 km/h. Gusts up to 20 mph 32 km/h.
Sunday, October 4, 2026
Mid-Morning
50°F 10°C
Sunny
Mid-Afternoon
55°F 13°C
Sunny
Early-Evening
56°F 13°C
Overcast
Chilly near 55°F 13°C, sunny in the morning, cloudy in the afternoon, and sunny this evening, with steady humidity and steady pressure. Winds NW at 17 mph 28 km/h. Gusts up to 22 mph 35 km/h.
Monday, October 5, 2026
Mid-Morning
40°F 4°C
Sunny
Mid-Afternoon
50°F 10°C
Sunny
Early-Evening
52°F 11°C
Sunny
Crisp with a high near 50°F 10°C, sunny throughout the day, with steady humidity and steady pressure. Winds switching from the ESE to the SSE at 6 mph 9 km/h.
Tuesday, October 6, 2026
Mid-Morning
47°F 8°C
Overcast
Mid-Afternoon
60°F 15°C
Sunny
Early-Evening
62°F 17°C
Overcast
Refreshing around 60°F 15°C, cloudy through the afternoon, turning overcast this evening, with increasing humidity and barometric pressure falling. Winds tapering down from SSE 17 mph 27 km/h to SE 9 mph 14 km/h.
Wednesday, October 7, 2026
Mid-Morning
56°F 13°C
Overcast
Mid-Afternoon
65°F 18°C
Overcast
Early-Evening
63°F 17°C
Sunny
Mildly cool near 65°F 18°C, partly cloudy through the afternoon, turning sunny this evening, with lower humidity and barometric pressure rising. Winds swinging from the NNE to the N at 9 mph 15 km/h. Gusts up to 21 mph 34 km/h.
Thursday, October 8, 2026
Mid-Morning
53°F 12°C
Partly Cloudy
Mid-Afternoon
64°F 18°C
Overcast
Early-Evening
61°F 16°C
Sunny
Comfortable at 64°F 18°C, cloudy in the morning, becoming partly cloudy through the afternoon and evening, with steady humidity and steady pressure. Winds shifting from the NW to the NNE at 9 mph 14 km/h. Gusts up to 20 mph 33 km/h.
Friday, October 9, 2026
Mid-Morning
46°F 8°C
Cloudy
Mid-Afternoon
55°F 13°C
Overcast
Early-Evening
56°F 13°C
Cloudy
Crisp with a high near 55°F 13°C, cloudy in the morning, overcast in the afternoon, and cloudy this evening, with lower humidity and barometric pressure falling.
Saturday, October 10, 2026
Mid-Morning
48°F 9°C
Sunny
Mid-Afternoon
62°F 17°C
Sunny
Early-Evening
60°F 16°C
Sunny
Refreshing around 62°F 17°C, sunny throughout the day, with steady humidity and barometric pressure falling. Winds turning from the SW to the SSW at 9 mph 14 km/h.
Sunday, October 11, 2026
Mid-Morning
47°F 9°C
Overcast
Mid-Afternoon
53°F 12°C
Partly Cloudy
Early-Evening
54°F 12°C
Sunny
Cool and brisk at 53°F 12°C, cloudy in the morning, becoming sunny through the afternoon and evening, with lower humidity and barometric pressure rising. Winds decreasing from N 19 mph 31 km/h to N 11 mph 18 km/h. Gusts up to 21 mph 34 km/h.
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