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Custer County, SD Weather Forecast
Custer County, SD Weather Forecast Dated: 102 PM Fri Oct 16 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.
Friday, October 16, 2026
Mid-Morning
36°F 2°C
Sunny
Mid-Afternoon
51°F 11°C
Sunny
Early-Evening
43°F 6°C
Sunny
Brisk around 51°F 11°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds turning from the SW to the W at 9 mph 15 km/h. Gusts up to 23 mph 36 km/h.
Saturday, October 17, 2026
Mid-Morning
60°F 15°C
Sunny
Mid-Afternoon
73°F 23°C
Sunny
Early-Evening
57°F 14°C
Sunny
Comfortable with temperatures reaching 73°F 23°C, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and barometric pressure falling. Winds switching from the WNW to the W at 9 mph 14 km/h.
Sunday, October 18, 2026
Mid-Morning
53°F 11°C
Sunny
Mid-Afternoon
61°F 16°C
Sunny
Early-Evening
49°F 10°C
Sunny
Comfortable at 61°F 16°C, sunny throughout the day, with steady humidity and steady pressure. Winds NE at 11 mph 18 km/h.
Monday, October 19, 2026
Mid-Morning
46°F 8°C
Sunny
Mid-Afternoon
56°F 13°C
Sunny
Early-Evening
45°F 8°C
Sunny
Crisp with a high near 56°F 13°C, sunny throughout the day, with increasing humidity and steady pressure.
Tuesday, October 20, 2026
Mid-Morning
56°F 13°C
Sunny
Mid-Afternoon
67°F 19°C
Sunny
Early-Evening
57°F 14°C
Sunny
Refreshing around 67°F 19°C, sunny throughout the day, with steady humidity and steady pressure. Winds out of the SSW at 9 mph 14 km/h.
Wednesday, October 21, 2026
Mid-Morning
60°F 16°C
Sunny
Mid-Afternoon
66°F 19°C
Sunny
Early-Evening
57°F 14°C
Sunny
Mildly cool near 66°F 19°C, sunny throughout the day, with steady humidity and steady pressure. Winds shifting from the W to the NNW at 5 mph 8 km/h.
Thursday, October 22, 2026
Mid-Morning
51°F 10°C
Sunny
Mid-Afternoon
64°F 18°C
Overcast
Early-Evening
59°F 15°C
Overcast
Comfortable at 64°F 18°C, sunny in the morning, becoming overcast through the afternoon and evening, with steady humidity and barometric pressure falling. Winds turning from the SE to the SSE at 9 mph 14 km/h. Gusts up to 28 mph 45 km/h.
Friday, October 23, 2026
Mid-Morning
53°F 12°C
Drizzle
Mid-Afternoon
64°F 18°C
Sunny
Early-Evening
55°F 13°C
Clear
Cool with a high near 64°F 18°C, scattered morning showers before drying out later, with lower humidity and steady pressure. Winds picking up from SSE at 13 mph 21 km/h to WSW at 21 mph 33 km/h. Gusts up to 39 mph 62 km/h.
Saturday, October 24, 2026
Mid-Morning
41°F 5°C
Sunny
Mid-Afternoon
51°F 10°C
Sunny
Early-Evening
39°F 4°C
Partly Cloudy
Brisk around 51°F 10°C, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and steady pressure. Winds moving from the NNW to the NNE at 5 mph 8 km/h.
Sunday, October 25, 2026
Mid-Morning
31°F 0°C
Heavy Snow
Mid-Afternoon
37°F 3°C
Overcast
Early-Evening
33°F 1°C
Snow
Nippy around 37°F 3°C, rounds of snow morning and night, dry in between, with lower humidity and steady pressure. Winds swinging from the N to the ENE at 5 mph 8 km/h.
Monday, October 26, 2026
Mid-Morning
30°F -1°C
Cloudy
Mid-Afternoon
42°F 5°C
Sunny
Early-Evening
33°F 1°C
Cloudy
Biting cold near 42°F 5°C, cloudy in the morning, sunny in the afternoon, and overcast this evening, with steady humidity and barometric pressure falling. Winds shifting from the SSW to the SW at 6 mph 10 km/h.
Tuesday, October 27, 2026
Mid-Morning
44°F 7°C
Sunny
Mid-Afternoon
53°F 11°C
Overcast
Early-Evening
42°F 6°C
Overcast
Crisp with a high near 53°F 11°C, sunny in the morning, overcast in the afternoon, and cloudy this evening, with increasing humidity and steady pressure.
Wednesday, October 28, 2026
Mid-Morning
40°F 4°C
Fog
Mid-Afternoon
40°F 5°C
Drizzle
Early-Evening
39°F 4°C
Fog
Nippy around 40°F 5°C, drier morning followed by scattered afternoon showers, with steady humidity and steady pressure.
Thursday, October 29, 2026
Mid-Morning
40°F 4°C
Scattered Showers
Mid-Afternoon
43°F 6°C
Overcast
Early-Evening
41°F 5°C
Scattered Showers
Biting cold near 43°F 6°C, scattered downpours possible, with steady humidity and barometric pressure rising.
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