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Astoria, SD Weather Forecast


Astoria, SD Weather Forecast Dated: 1254 AM Sat Sep 19 2026
Expect a cool pattern with a mix of sun and clouds and occasional showers over the coming period. generally humid conditions and no major pressure swings will dominate.
Saturday, September 19, 2026
Mid-Morning
52°F 11°C
Overcast
Mid-Afternoon
54°F 12°C
Scattered Showers
Early-Evening
55°F 13°C
Scattered Showers
Brisk around 54°F 12°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds turning from the NNE to the NE at 11 mph 18 km/h. Gusts up to 20 mph 32 km/h.
Sunday, September 20, 2026
Mid-Morning
50°F 10°C
Overcast
Mid-Afternoon
57°F 14°C
Overcast
Early-Evening
53°F 12°C
Overcast
Cool and brisk at 57°F 14°C, overcast throughout the day, with steady humidity and steady pressure. Winds switching from the NE to the ENE at 12 mph 19 km/h.
Monday, September 21, 2026
Mid-Morning
48°F 9°C
Overcast
Mid-Afternoon
52°F 11°C
Scattered Showers
Early-Evening
58°F 14°C
Scattered Showers
Chilly near 52°F 11°C, locally heavy downpours at times, with lower humidity and steady pressure. Winds moving from the E to the ENE at 5 mph 8 km/h.
Tuesday, September 22, 2026
Mid-Morning
52°F 11°C
Cloudy
Mid-Afternoon
60°F 16°C
Cloudy
Early-Evening
60°F 16°C
Scattered Showers
Cool with a high near 60°F 16°C, periods of heavy rain and gusty conditions, with lower humidity and steady pressure. Winds swinging from the SSE to the SE at 9 mph 14 km/h.
Wednesday, September 23, 2026
Mid-Morning
51°F 10°C
Overcast
Mid-Afternoon
61°F 16°C
Sunny
Early-Evening
62°F 17°C
Sunny
Refreshing around 61°F 16°C, overcast in the morning, sunny in the afternoon, and partly cloudy this evening, with lower humidity and steady pressure. Winds shifting from the S to the SSE at 10 mph 16 km/h. Gusts up to 20 mph 33 km/h.
Thursday, September 24, 2026
Mid-Morning
56°F 14°C
Overcast
Mid-Afternoon
60°F 16°C
Overcast
Early-Evening
58°F 15°C
Overcast
Mildly cool near 60°F 16°C, overcast throughout the day, with steady humidity and steady pressure. Winds S at 14 mph 22 km/h. Gusts up to 22 mph 35 km/h.
Friday, September 25, 2026
Mid-Morning
54°F 12°C
Overcast
Mid-Afternoon
53°F 12°C
Scattered Showers
Early-Evening
53°F 12°C
Overcast
Chilly near 53°F 12°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds out of the SE at 13 mph 21 km/h. Gusts up to 27 mph 42 km/h.
Saturday, September 26, 2026
Mid-Morning
54°F 12°C
Scattered Showers
Mid-Afternoon
68°F 20°C
Partly Cloudy
Early-Evening
65°F 19°C
Partly Cloudy
Enjoyable around 68°F 20°C, scattered downpours possible, with lower humidity and barometric pressure falling. Winds blowing from the S at 22 mph 36 km/h. Gusts up to 32 mph 51 km/h.
Sunday, September 27, 2026
Mid-Morning
59°F 15°C
Overcast
Mid-Afternoon
51°F 11°C
Heavy Rain Showers
Early-Evening
50°F 10°C
Light Showers
Brisk around 51°F 11°C, dry early, with showers continuing through afternoon and evening, with steady humidity and steady pressure. Winds swinging from the SSW to the N at 12 mph 19 km/h. Gusts up to 26 mph 42 km/h.
Monday, September 28, 2026
Mid-Morning
49°F 9°C
Sunny
Mid-Afternoon
61°F 16°C
Sunny
Early-Evening
61°F 16°C
Sunny
Mildly cool near 61°F 16°C, sunny throughout the day, with steady humidity and barometric pressure falling. Winds shifting from the NNW to the WNW at 8 mph 13 km/h.
Tuesday, September 29, 2026
Mid-Morning
55°F 13°C
Sunny
Mid-Afternoon
65°F 18°C
Sunny
Early-Evening
64°F 18°C
Sunny
Comfortable at 65°F 18°C, sunny throughout the day, with steady humidity and barometric pressure falling. Winds turning from the ENE to the SSE at 9 mph 14 km/h.
Wednesday, September 30, 2026
Mid-Morning
57°F 14°C
Sunny
Mid-Afternoon
63°F 17°C
Overcast
Early-Evening
60°F 16°C
Cloudy
Cool with a high near 63°F 17°C, sunny in the morning, becoming overcast through the afternoon and evening, with lower humidity and barometric pressure rising. Winds switching from the NW to the NNW at 12 mph 19 km/h. Gusts up to 25 mph 40 km/h.
Thursday, October 1, 2026
Mid-Morning
44°F 7°C
Partly Cloudy
Mid-Afternoon
53°F 12°C
Cloudy
Early-Evening
52°F 12°C
Overcast
Brisk around 53°F 12°C, sunny in the morning, overcast in the afternoon, and cloudy this evening, with steady humidity and steady pressure. Winds moving from the SE to the ENE at 7 mph 12 km/h.
Friday, October 2, 2026
Mid-Morning
47°F 8°C
Sunny
Mid-Afternoon
58°F 15°C
Overcast
Early-Evening
59°F 15°C
Overcast
Mildly cool near 58°F 15°C, cloudy in the morning, overcast in the afternoon, and sunny this evening, with steady humidity and barometric pressure falling. Winds swinging from the SSE to the S at 15 mph 24 km/h. Gusts up to 30 mph 47 km/h.
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