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Castalia School, SD Weather Forecast
Castalia School, SD Weather Forecast Dated: 118 AM Mon Oct 26 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.
Monday, October 26, 2026
Mid-Morning
40°F 5°C
Scattered Showers
Mid-Afternoon
40°F 4°C
Rain
Early-Evening
40°F 5°C
Scattered Showers
Nippy around 40°F 4°C, periods of heavy rain and gusty conditions, with steady humidity and barometric pressure falling. Winds turning from the ENE to the NE at 11 mph 18 km/h.
Tuesday, October 27, 2026
Mid-Morning
39°F 4°C
Sunny
Mid-Afternoon
52°F 11°C
Overcast
Early-Evening
53°F 12°C
Sunny
Cool and brisk at 52°F 11°C, sunny in the morning, overcast in the afternoon, and sunny this evening, with steady humidity and barometric pressure falling. Winds building from S at 3 mph 5 km/h to SSE at 13 mph 21 km/h. Gusts up to 29 mph 47 km/h.
Wednesday, October 28, 2026
Mid-Morning
53°F 12°C
Light Fog
Mid-Afternoon
57°F 14°C
Scattered Showers
Early-Evening
54°F 12°C
Sunny
Chilly near 57°F 14°C, locally heavy downpours at times, with lower humidity and steady pressure.
Thursday, October 29, 2026
Mid-Morning
45°F 7°C
Sunny
Mid-Afternoon
65°F 18°C
Sunny
Early-Evening
55°F 13°C
Sunny
Cool with a high near 65°F 18°C, sunny throughout the day, with steady humidity and steady pressure. Winds moving from the SE to the N at 8 mph 13 km/h.
Friday, October 30, 2026
Mid-Morning
40°F 4°C
Overcast
Mid-Afternoon
57°F 14°C
Scattered Showers
Early-Evening
55°F 13°C
Overcast
Brisk around 57°F 14°C, scattered downpours possible, with steady humidity and barometric pressure falling. Winds swinging from the NE to the E at 10 mph 16 km/h. Gusts up to 21 mph 34 km/h.
Saturday, October 31, 2026
Mid-Morning
54°F 12°C
Scattered Showers
Mid-Afternoon
58°F 14°C
Scattered Showers
Early-Evening
57°F 14°C
Scattered Showers
Mildly cool near 58°F 14°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds shifting from the SE to the SSE at 5 mph 8 km/h.
Sunday, November 1, 2026
Mid-Morning
56°F 14°C
Partly Cloudy
Mid-Afternoon
64°F 18°C
Cloudy
Early-Evening
59°F 15°C
Overcast
Comfortable at 64°F 18°C, cloudy through the afternoon, turning overcast this evening, with steady humidity and barometric pressure falling. Winds turning from the SSE to the SE at 13 mph 20 km/h. Gusts up to 26 mph 42 km/h.
Monday, November 2, 2026
Mid-Morning
52°F 11°C
Light Rain
Mid-Afternoon
51°F 10°C
Light Rain
Early-Evening
43°F 7°C
Light Rain
Crisp with a high near 51°F 10°C, persistent showers off and on through the day, with steady humidity and barometric pressure rising. Winds picking up from SSW at 3 mph 5 km/h to WNW at 19 mph 30 km/h. Gusts up to 31 mph 50 km/h.
Tuesday, November 3, 2026
Mid-Morning
43°F 6°C
Drizzle
Mid-Afternoon
47°F 9°C
Scattered Showers
Early-Evening
47°F 9°C
Scattered Showers
Brisk around 47°F 9°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds moving from the W to the NNE at 11 mph 18 km/h. Gusts up to 31 mph 49 km/h.
Wednesday, November 4, 2026
Mid-Morning
45°F 7°C
Scattered Showers
Mid-Afternoon
45°F 7°C
Scattered Showers
Early-Evening
44°F 7°C
Scattered Showers
Cool and brisk at 45°F 7°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure.
Thursday, November 5, 2026
Mid-Morning
40°F 4°C
Partly Cloudy
Mid-Afternoon
49°F 10°C
Cloudy
Early-Evening
48°F 9°C
Overcast
Chilly near 49°F 10°C, partly cloudy in the morning, cloudy in the afternoon, and overcast this evening, with steady humidity and barometric pressure falling. Winds swinging from the S to the SSE at 13 mph 21 km/h. Gusts up to 25 mph 41 km/h.
Friday, November 6, 2026
Mid-Morning
53°F 12°C
Partly Cloudy
Mid-Afternoon
63°F 17°C
Partly Cloudy
Early-Evening
52°F 11°C
Clear
Cool with a high near 63°F 17°C, partly cloudy throughout the day, with steady humidity and steady pressure.
Saturday, November 7, 2026
Mid-Morning
49°F 10°C
Scattered Showers
Mid-Afternoon
52°F 11°C
Sunny
Early-Evening
49°F 10°C
Clear
Brisk around 52°F 11°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure.
Sunday, November 8, 2026
Mid-Morning
46°F 8°C
Partly Cloudy
Mid-Afternoon
52°F 11°C
Sunny
Early-Evening
45°F 8°C
Cloudy
Cool and brisk at 52°F 11°C, partly cloudy through the afternoon, turning cloudy this evening, with steady humidity and steady pressure. Winds shifting from the WNW to the SE at 9 mph 13 km/h. Gusts up to 23 mph 37 km/h.
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