Island School, SD 14 Day Weather
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Island School, SD Weather Forecast


Island School, SD Weather Forecast Dated: 614 PM Tue Oct 20 2026
Expect a cool pattern with a mix of sun and clouds and mostly dry weather over the coming period. moderate humidity and a stable pattern will dominate.
Tuesday, October 20, 2026
Mid-Morning
50°F 10°C
Sunny
Mid-Afternoon
69°F 21°C
Sunny
Early-Evening
61°F 16°C
Sunny
Pleasant near 69°F 21°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds turning from the SE to the SSE at 8 mph 13 km/h.
Wednesday, October 21, 2026
Mid-Morning
56°F 13°C
Sunny
Mid-Afternoon
74°F 23°C
Sunny
Early-Evening
66°F 19°C
Overcast
Comfortable with temperatures reaching 74°F 23°C, sunny through the afternoon, turning overcast this evening, with lower humidity and steady pressure. Winds switching from the S to the SSE at 6 mph 10 km/h.
Thursday, October 22, 2026
Mid-Morning
58°F 14°C
Sunny
Mid-Afternoon
75°F 24°C
Sunny
Early-Evening
67°F 19°C
Sunny
Enjoyable around 75°F 24°C, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and barometric pressure falling. Winds SSE at 13 mph 21 km/h. Gusts up to 24 mph 38 km/h.
Friday, October 23, 2026
Mid-Morning
61°F 16°C
Sunny
Mid-Afternoon
78°F 25°C
Overcast
Early-Evening
72°F 22°C
Overcast
Mild temperatures up to 78°F 25°C, sunny in the morning, becoming overcast through the afternoon and evening, with lower humidity and steady pressure. Winds out of the SSE at 20 mph 32 km/h. Gusts up to 36 mph 58 km/h.
Saturday, October 24, 2026
Mid-Morning
64°F 18°C
Partly Cloudy
Mid-Afternoon
65°F 19°C
Scattered Showers
Early-Evening
61°F 16°C
Overcast
Refreshing around 65°F 19°C, scattered downpours possible, with steady humidity and barometric pressure rising. Winds shifting from the S to the NW at 8 mph 13 km/h.
Sunday, October 25, 2026
Mid-Morning
51°F 11°C
Drizzle
Mid-Afternoon
48°F 9°C
Scattered Showers
Early-Evening
44°F 7°C
Scattered Showers
Cool and brisk at 48°F 9°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds NE at 10 mph 16 km/h. Gusts up to 20 mph 33 km/h.
Monday, October 26, 2026
Mid-Morning
40°F 4°C
Drizzle
Mid-Afternoon
43°F 6°C
Overcast
Early-Evening
41°F 5°C
Overcast
Nippy around 43°F 6°C, early showers breaking for a drier afternoon, with lower humidity and steady pressure. Winds switching from the NNE to the SW at 10 mph 16 km/h.
Tuesday, October 27, 2026
Mid-Morning
37°F 3°C
Partly Cloudy
Mid-Afternoon
43°F 6°C
Overcast
Early-Evening
40°F 5°C
Overcast
Biting cold near 43°F 6°C, overcast throughout the day, with steady humidity and barometric pressure falling. Winds moving from the ESE to the NNW at 6 mph 9 km/h.
Wednesday, October 28, 2026
Mid-Morning
36°F 2°C
Sunny
Mid-Afternoon
50°F 10°C
Sunny
Early-Evening
45°F 7°C
Sunny
Brisk around 50°F 10°C, sunny throughout the day, with lower humidity and barometric pressure falling.
Thursday, October 29, 2026
Mid-Morning
37°F 3°C
Sunny
Mid-Afternoon
46°F 8°C
Sunny
Early-Evening
40°F 5°C
Sunny
Cool and brisk at 46°F 8°C, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and barometric pressure falling.
Friday, October 30, 2026
Mid-Morning
40°F 5°C
Overcast
Mid-Afternoon
48°F 9°C
Overcast
Early-Evening
49°F 10°C
Overcast
Chilly near 48°F 9°C, overcast throughout the day, with steady humidity and barometric pressure falling. Winds swinging from the SSE to the S at 18 mph 28 km/h. Gusts up to 34 mph 55 km/h.
Saturday, October 31, 2026
Mid-Morning
47°F 9°C
Scattered Showers
Mid-Afternoon
50°F 10°C
Overcast
Early-Evening
50°F 10°C
Overcast
Crisp with a high near 50°F 10°C, locally heavy downpours at times, with steady humidity and barometric pressure falling. Winds out of the S at 15 mph 24 km/h. Gusts up to 27 mph 43 km/h.
Sunday, November 1, 2026
Mid-Morning
55°F 13°C
Cloudy
Mid-Afternoon
66°F 19°C
Overcast
Early-Evening
54°F 12°C
Overcast
Refreshing around 66°F 19°C, cloudy in the morning, becoming overcast through the afternoon and evening, with lower humidity and barometric pressure rising. Winds tapering down from SSW 15 mph 24 km/h to NW 6 mph 10 km/h.
Monday, November 2, 2026
Mid-Morning
44°F 7°C
Sunny
Mid-Afternoon
52°F 11°C
Sunny
Early-Evening
44°F 7°C
Clear
Cool and brisk at 52°F 11°C, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure. Winds decreasing from NNW 12 mph 19 km/h to SSW 3 mph 5 km/h.
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