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Rainbow School, SD Weather Forecast
Rainbow School, SD Weather Forecast Dated: 315 AM Fri Sep 18 2026
Expect a cool pattern with a mix of sun and clouds and occasional showers over the coming period. moderate humidity and no major pressure swings will dominate.
Friday, September 18, 2026
Mid-Morning
58°F 15°C
Scattered Showers
Mid-Afternoon
61°F 16°C
Scattered Showers
Early-Evening
59°F 15°C
Scattered Showers
Refreshing around 61°F 16°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds turning from the ENE to the E at 10 mph 15 km/h.
Saturday, September 19, 2026
Mid-Morning
57°F 14°C
Scattered Showers
Mid-Afternoon
60°F 15°C
Scattered Showers
Early-Evening
57°F 14°C
Scattered Showers
Mildly cool near 60°F 15°C, scattered downpours possible, with steady humidity and steady pressure. Winds blowing from the E at 10 mph 15 km/h.
Sunday, September 20, 2026
Mid-Morning
55°F 13°C
Scattered Showers
Mid-Afternoon
54°F 12°C
Light Rain
Early-Evening
53°F 12°C
Light Showers
Chilly near 54°F 12°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds moving from the E to the SE at 6 mph 10 km/h.
Monday, September 21, 2026
Mid-Morning
53°F 12°C
Scattered Showers
Mid-Afternoon
58°F 14°C
Scattered Showers
Early-Evening
55°F 13°C
Sunny
Cool with a high near 58°F 14°C, periods of heavy rain and gusty conditions, with lower humidity and steady pressure. Winds out of the SE at 11 mph 18 km/h. Gusts up to 24 mph 38 km/h.
Tuesday, September 22, 2026
Mid-Morning
53°F 12°C
Overcast
Mid-Afternoon
67°F 20°C
Overcast
Early-Evening
62°F 17°C
Cloudy
Refreshing around 67°F 20°C, overcast through the afternoon, turning partly cloudy this evening, with lower humidity and steady pressure. Winds shifting from the SSE to the ESE at 11 mph 17 km/h. Gusts up to 20 mph 32 km/h.
Wednesday, September 23, 2026
Mid-Morning
61°F 16°C
Overcast
Mid-Afternoon
78°F 25°C
Overcast
Early-Evening
70°F 21°C
Overcast
Pleasant near 78°F 25°C, overcast throughout the day, with lower humidity and steady pressure.
Thursday, September 24, 2026
Mid-Morning
59°F 15°C
Sunny
Mid-Afternoon
75°F 24°C
Sunny
Early-Evening
67°F 20°C
Sunny
Comfortable with temperatures reaching 75°F 24°C, sunny throughout the day, with steady humidity and steady pressure. Winds turning from the ENE to the SE at 11 mph 18 km/h. Gusts up to 21 mph 34 km/h.
Friday, September 25, 2026
Mid-Morning
64°F 18°C
Sunny
Mid-Afternoon
78°F 25°C
Sunny
Early-Evening
71°F 22°C
Overcast
Enjoyable around 78°F 25°C, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and barometric pressure falling. Winds out of the SSE at 21 mph 34 km/h. Gusts up to 30 mph 49 km/h.
Saturday, September 26, 2026
Mid-Morning
66°F 19°C
Sunny
Mid-Afternoon
88°F 31°C
Overcast
Early-Evening
78°F 26°C
Overcast
Warm temperatures up to 88°F 31°C, sunny in the morning, overcast in the afternoon, and cloudy this evening, with lower humidity and barometric pressure falling. Winds tapering down from SSE 20 mph 32 km/h to S 10 mph 16 km/h. Gusts up to 20 mph 32 km/h.
Sunday, September 27, 2026
Mid-Morning
61°F 16°C
Sunny
Mid-Afternoon
75°F 24°C
Sunny
Early-Evening
69°F 21°C
Overcast
Mild with a high of 75°F 24°C, sunny through the afternoon, turning cloudy this evening, with steady humidity and barometric pressure falling. Winds swinging from the NW to the E at 6 mph 10 km/h.
Monday, September 28, 2026
Mid-Morning
57°F 14°C
Scattered Showers
Mid-Afternoon
69°F 20°C
Partly Cloudy
Early-Evening
63°F 17°C
Sunny
Pleasant near 69°F 20°C, scattered downpours possible, with lower humidity and steady pressure. Winds shifting from the NNW to the NW at 11 mph 17 km/h. Gusts up to 20 mph 32 km/h.
Tuesday, September 29, 2026
Mid-Morning
51°F 11°C
Partly Cloudy
Mid-Afternoon
57°F 14°C
Cloudy
Early-Evening
49°F 10°C
Overcast
Crisp with a high near 57°F 14°C, cloudy in the morning, becoming overcast through the afternoon and evening, with steady humidity and barometric pressure rising. Winds turning from the WNW to the NW at 18 mph 28 km/h. Gusts up to 26 mph 41 km/h.
Wednesday, September 30, 2026
Mid-Morning
46°F 8°C
Overcast
Mid-Afternoon
47°F 8°C
Scattered Showers
Early-Evening
47°F 8°C
Overcast
Brisk around 47°F 8°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds switching from the NNW to the NW at 9 mph 15 km/h.
Thursday, October 1, 2026
Mid-Morning
46°F 8°C
Sunny
Mid-Afternoon
59°F 15°C
Sunny
Early-Evening
54°F 12°C
Sunny
Mildly cool near 59°F 15°C, sunny throughout the day, with lower humidity and barometric pressure falling.
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