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Harrison, SD Weather Forecast
Harrison, SD Weather Forecast Dated: 426 PM Sun Oct 25 2026
Expect a cool pattern with more clouds than sun and frequent chances of rain over the coming period. generally humid conditions and no major pressure swings will dominate.
Sunday, October 25, 2026
Mid-Morning
43°F 6°C
Overcast
Mid-Afternoon
43°F 6°C
Overcast
Early-Evening
41°F 5°C
Drizzle
Nippy around 43°F 6°C, drier conditions through late afternoon before showers move in, with increasing humidity and steady pressure. Winds turning from the NNE to the NE at 10 mph 16 km/h.
Monday, October 26, 2026
Mid-Morning
41°F 5°C
Rain
Mid-Afternoon
42°F 6°C
Rain
Early-Evening
43°F 6°C
Drizzle
Biting cold near 42°F 6°C, persistent showers off and on through the day, with steady humidity and barometric pressure falling. Winds blowing from the NE at 12 mph 19 km/h.
Tuesday, October 27, 2026
Mid-Morning
39°F 4°C
Sunny
Mid-Afternoon
59°F 15°C
Overcast
Early-Evening
54°F 12°C
Sunny
Comfortable at 59°F 15°C, sunny in the morning, overcast in the afternoon, and sunny this evening, with steady humidity and barometric pressure falling. Winds increasing from the SW at 3 mph 5 km/h to SSE at 12 mph 20 km/h. Gusts up to 27 mph 44 km/h.
Wednesday, October 28, 2026
Mid-Morning
52°F 11°C
Sunny
Mid-Afternoon
67°F 20°C
Scattered Showers
Early-Evening
58°F 14°C
Light Showers
Cool with a high near 67°F 20°C, periods of heavy rain and gusty conditions, with lower humidity and steady pressure. Winds swinging from the SSE to the N at 10 mph 16 km/h.
Thursday, October 29, 2026
Mid-Morning
44°F 7°C
Sunny
Mid-Afternoon
60°F 16°C
Sunny
Early-Evening
53°F 12°C
Sunny
Refreshing around 60°F 16°C, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and steady pressure. Winds shifting from the NE to the ESE at 7 mph 12 km/h.
Friday, October 30, 2026
Mid-Morning
47°F 9°C
Overcast
Mid-Afternoon
58°F 14°C
Overcast
Early-Evening
56°F 14°C
Overcast
Mildly cool near 58°F 14°C, overcast throughout the day, with lower humidity and barometric pressure falling. Winds turning from the ENE to the ESE at 9 mph 15 km/h. Gusts up to 23 mph 37 km/h.
Saturday, October 31, 2026
Mid-Morning
54°F 12°C
Overcast
Mid-Afternoon
61°F 16°C
Overcast
Early-Evening
59°F 15°C
Overcast
Comfortable at 61°F 16°C, overcast through the afternoon, turning cloudy this evening, with steady humidity and steady pressure. Winds out of the SSE at 6 mph 10 km/h.
Sunday, November 1, 2026
Mid-Morning
57°F 14°C
Partly Cloudy
Mid-Afternoon
65°F 18°C
Partly Cloudy
Early-Evening
59°F 15°C
Overcast
Cool with a high near 65°F 18°C, cloudy through the afternoon, turning overcast this evening, with steady humidity and steady pressure. Winds blowing from the SE at 5 mph 8 km/h.
Monday, November 2, 2026
Mid-Morning
58°F 15°C
Drizzle
Mid-Afternoon
58°F 15°C
Light Rain
Early-Evening
58°F 14°C
Light Rain
Refreshing around 58°F 15°C, on-and-off showers throughout the day, with steady humidity and steady pressure. Winds swinging from the SE to the ESE at 19 mph 31 km/h. Gusts up to 36 mph 57 km/h.
Tuesday, November 3, 2026
Mid-Morning
51°F 11°C
Light Rain
Mid-Afternoon
51°F 11°C
Drizzle
Early-Evening
51°F 11°C
Drizzle
Cool and brisk at 51°F 11°C, rounds of showers expected off and on all day, with steady humidity and steady pressure. Winds out of the ENE at 9 mph 15 km/h. Gusts up to 27 mph 44 km/h.
Wednesday, November 4, 2026
Mid-Morning
47°F 9°C
Scattered Showers
Mid-Afternoon
52°F 11°C
Scattered Showers
Early-Evening
49°F 10°C
Overcast
Chilly near 52°F 11°C, scattered downpours possible, with steady humidity and steady pressure.
Thursday, November 5, 2026
Mid-Morning
47°F 8°C
Partly Cloudy
Mid-Afternoon
53°F 12°C
Overcast
Early-Evening
49°F 10°C
Overcast
Crisp with a high near 53°F 12°C, cloudy in the morning, becoming overcast through the afternoon and evening, with steady humidity and steady pressure.
Friday, November 6, 2026
Mid-Morning
50°F 10°C
Scattered Showers
Mid-Afternoon
55°F 13°C
Partly Cloudy
Early-Evening
52°F 11°C
Scattered Showers
Brisk around 55°F 13°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds turning from the SSE to the SSW at 5 mph 8 km/h.
Saturday, November 7, 2026
Mid-Morning
52°F 11°C
Cloudy
Mid-Afternoon
59°F 15°C
Partly Cloudy
Early-Evening
53°F 12°C
Scattered Showers
Mildly cool near 59°F 15°C, scattered downpours possible, with steady humidity and steady pressure.
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