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Erwin, SD Weather Forecast
Erwin, SD Weather Forecast Dated: 758 AM Fri Oct 23 2026
Expect a cool pattern with more clouds than sun and occasional showers over the coming period. moderate humidity and a stable pattern will dominate.
Friday, October 23, 2026
Mid-Morning
62°F 17°C
Light Showers
Mid-Afternoon
75°F 24°C
Overcast
Early-Evening
71°F 21°C
Overcast
Pleasant near 75°F 24°C, early showers breaking for a drier afternoon, with lower humidity and steady pressure. Winds turning from the SSE to the S at 23 mph 38 km/h. Gusts up to 40 mph 65 km/h.
Saturday, October 24, 2026
Mid-Morning
61°F 16°C
Overcast
Mid-Afternoon
58°F 15°C
Overcast
Early-Evening
55°F 13°C
Overcast
Mildly cool near 58°F 15°C, overcast throughout the day, with lower humidity and barometric pressure rising. Winds switching from the WSW to the N at 5 mph 8 km/h.
Sunday, October 25, 2026
Mid-Morning
45°F 7°C
Overcast
Mid-Afternoon
49°F 9°C
Overcast
Early-Evening
46°F 8°C
Scattered Showers
Chilly near 49°F 9°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds moving from the NE to the ENE at 10 mph 15 km/h.
Monday, October 26, 2026
Mid-Morning
38°F 3°C
Drizzle
Mid-Afternoon
38°F 3°C
Drizzle
Early-Evening
37°F 3°C
Drizzle
Nippy around 38°F 3°C, rounds of showers expected off and on all day, with increasing humidity and steady pressure. Winds out of the ENE at 15 mph 23 km/h. Gusts up to 28 mph 44 km/h.
Tuesday, October 27, 2026
Mid-Morning
38°F 3°C
Light Fog
Mid-Afternoon
42°F 6°C
Overcast
Early-Evening
45°F 7°C
Overcast
Biting cold near 42°F 6°C, overcast through the afternoon, turning cloudy this evening, with lower humidity and barometric pressure falling.
Wednesday, October 28, 2026
Mid-Morning
52°F 11°C
Drizzle
Mid-Afternoon
56°F 13°C
Light Showers
Early-Evening
50°F 10°C
Scattered Showers
Cool and brisk at 56°F 13°C, locally heavy downpours at times, with lower humidity and steady pressure. Winds shifting from the SSE to the W at 15 mph 24 km/h. Gusts up to 34 mph 54 km/h.
Thursday, October 29, 2026
Mid-Morning
38°F 4°C
Overcast
Mid-Afternoon
41°F 5°C
Overcast
Early-Evening
39°F 4°C
Cloudy
Nippy around 41°F 5°C, overcast throughout the day, with lower humidity and steady pressure. Winds NW at 10 mph 17 km/h.
Friday, October 30, 2026
Mid-Morning
34°F 1°C
Partly Cloudy
Mid-Afternoon
40°F 4°C
Scattered Showers
Early-Evening
39°F 4°C
Partly Cloudy
Biting cold near 40°F 4°C, scattered downpours possible, with steady humidity and barometric pressure falling.
Saturday, October 31, 2026
Mid-Morning
40°F 4°C
Scattered Showers
Mid-Afternoon
44°F 7°C
Scattered Showers
Early-Evening
40°F 5°C
Scattered Showers
Cold with a high near 44°F 7°C, locally heavy downpours at times, with steady humidity and steady pressure.
Sunday, November 1, 2026
Mid-Morning
37°F 3°C
Cloudy
Mid-Afternoon
42°F 6°C
Scattered Showers
Early-Evening
39°F 4°C
Light Showers
Nippy around 42°F 6°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure.
Monday, November 2, 2026
Mid-Morning
45°F 7°C
Cloudy
Mid-Afternoon
53°F 12°C
Partly Cloudy
Early-Evening
48°F 10°C
Partly Cloudy
Chilly near 53°F 12°C, cloudy throughout the day, with steady humidity and steady pressure.
Tuesday, November 3, 2026
Mid-Morning
46°F 8°C
Scattered Showers
Mid-Afternoon
50°F 10°C
Partly Cloudy
Early-Evening
43°F 7°C
Partly Cloudy
Crisp with a high near 50°F 10°C, locally heavy downpours at times, with steady humidity and steady pressure.
Wednesday, November 4, 2026
Mid-Morning
43°F 6°C
Partly Cloudy
Mid-Afternoon
51°F 11°C
Partly Cloudy
Early-Evening
47°F 9°C
Partly Cloudy
Brisk around 51°F 11°C, cloudy through the afternoon, turning partly cloudy this evening, with steady humidity and barometric pressure falling. Winds picking up from SSE at 4 mph 7 km/h to S at 13 mph 20 km/h. Gusts up to 22 mph 35 km/h.
Thursday, November 5, 2026
Mid-Morning
51°F 11°C
Partly Cloudy
Mid-Afternoon
61°F 16°C
Overcast
Early-Evening
55°F 13°C
Overcast
Mildly cool near 61°F 16°C, cloudy in the morning, becoming overcast through the afternoon and evening, with steady humidity and steady pressure. Winds moving from the S to the SSW at 14 mph 23 km/h. Gusts up to 33 mph 54 km/h.
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