Letcher Lake, SD 14 Day Weather
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Letcher Lake, SD Weather Forecast


Letcher Lake, SD Weather Forecast Dated: 620 AM Tue Oct 06 2026
Expect a cool pattern with a mix of sun and clouds and occasional showers over the coming period. moderate humidity and no major pressure swings will dominate.
Tuesday, October 6, 2026
Mid-Morning
63°F 17°C
Sunny
Mid-Afternoon
85°F 29°C
Sunny
Early-Evening
76°F 24°C
Sunny
Warm and summery near 85°F 29°C, sunny throughout the day, with lower humidity and steady pressure.
Wednesday, October 7, 2026
Mid-Morning
58°F 15°C
Overcast
Mid-Afternoon
75°F 24°C
Overcast
Early-Evening
67°F 20°C
Partly Cloudy
Comfortable with temperatures reaching 75°F 24°C, overcast through the afternoon, turning cloudy this evening, with lower humidity and steady pressure. Winds turning from the NNW to the ESE at 4 mph 6 km/h.
Thursday, October 8, 2026
Mid-Morning
55°F 13°C
Overcast
Mid-Afternoon
69°F 21°C
Scattered Showers
Early-Evening
64°F 18°C
Sunny
Enjoyable around 69°F 21°C, locally heavy downpours at times, with steady humidity and barometric pressure falling. Winds blowing from the SE at 10 mph 15 km/h. Gusts up to 21 mph 33 km/h.
Friday, October 9, 2026
Mid-Morning
58°F 14°C
Overcast
Mid-Afternoon
76°F 24°C
Sunny
Early-Evening
73°F 23°C
Sunny
Mild temperatures up to 76°F 24°C, overcast in the morning, becoming sunny through the afternoon and evening, with lower humidity and barometric pressure falling. Winds moving from the SE to the SSE at 11 mph 18 km/h. Gusts up to 27 mph 44 km/h.
Saturday, October 10, 2026
Mid-Morning
71°F 22°C
Overcast
Mid-Afternoon
89°F 32°C
Sunny
Early-Evening
81°F 27°C
Sunny
Very warm with a high of 89°F 32°C, overcast in the morning, becoming sunny through the afternoon and evening, with steady humidity and steady pressure. Winds swinging from the S to the SSW at 12 mph 19 km/h. Gusts up to 22 mph 35 km/h.
Sunday, October 11, 2026
Mid-Morning
57°F 14°C
Sunny
Mid-Afternoon
69°F 20°C
Sunny
Early-Evening
60°F 16°C
Sunny
Pleasant near 69°F 20°C, sunny throughout the day, with steady humidity and steady pressure. Winds blowing from the NNE at 15 mph 24 km/h. Gusts up to 24 mph 38 km/h.
Monday, October 12, 2026
Mid-Morning
52°F 11°C
Overcast
Mid-Afternoon
69°F 20°C
Partly Cloudy
Early-Evening
65°F 18°C
Sunny
Comfortable with temperatures reaching 69°F 20°C, overcast in the morning, sunny in the afternoon, and cloudy this evening, with steady humidity and barometric pressure falling. Winds E at 4 mph 7 km/h.
Tuesday, October 13, 2026
Mid-Morning
66°F 19°C
Light Showers
Mid-Afternoon
82°F 28°C
Overcast
Early-Evening
77°F 25°C
Overcast
Quite warm around 82°F 28°C, scattered morning showers before drying out later, with lower humidity and barometric pressure falling. Winds switching from the SSE to the S at 17 mph 28 km/h. Gusts up to 32 mph 52 km/h.
Wednesday, October 14, 2026
Mid-Morning
66°F 19°C
Scattered Showers
Mid-Afternoon
70°F 21°C
Scattered Showers
Early-Evening
66°F 19°C
Scattered Showers
Mild temperatures up to 70°F 21°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds moving from the SSE to the ESE at 11 mph 17 km/h.
Thursday, October 15, 2026
Mid-Morning
53°F 12°C
Scattered Showers
Mid-Afternoon
57°F 14°C
Cloudy
Early-Evening
51°F 11°C
Sunny
Cool and brisk at 57°F 14°C, periods of heavy rain and gusty conditions, with lower humidity and barometric pressure rising. Winds NW at 23 mph 37 km/h. Gusts up to 30 mph 48 km/h.
Friday, October 16, 2026
Mid-Morning
42°F 6°C
Overcast
Mid-Afternoon
47°F 8°C
Overcast
Early-Evening
45°F 7°C
Partly Cloudy
Chilly near 47°F 8°C, cloudy through the afternoon, turning overcast this evening, with steady humidity and steady pressure. Winds shifting from the NW to the NNW at 15 mph 25 km/h. Gusts up to 26 mph 41 km/h.
Saturday, October 17, 2026
Mid-Morning
38°F 3°C
Sunny
Mid-Afternoon
49°F 10°C
Sunny
Early-Evening
44°F 7°C
Sunny
Crisp with a high near 49°F 10°C, sunny throughout the day, with lower humidity and steady pressure.
Sunday, October 18, 2026
Mid-Morning
41°F 5°C
Sunny
Mid-Afternoon
55°F 13°C
Sunny
Early-Evening
49°F 9°C
Sunny
Brisk around 55°F 13°C, sunny throughout the day, with lower humidity and steady pressure.
Monday, October 19, 2026
Mid-Morning
45°F 7°C
Overcast
Mid-Afternoon
55°F 13°C
Overcast
Early-Evening
52°F 11°C
Overcast
Cool and brisk at 55°F 13°C, partly cloudy in the morning, becoming overcast through the afternoon and evening, with increasing humidity and steady pressure. Winds turning from the SSE to the S at 8 mph 13 km/h.
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