Stephan, SD 14 Day Weather - 57346 WeatherWorld.com
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Stephan, SD Weather Forecast


Stephan, SD Weather Forecast Dated: 630 PM Tue Sep 15 2026
Expect a cool pattern with a mix of sun and clouds and frequent chances of rain over the coming period. generally humid conditions and no major pressure swings will dominate.
Tuesday, September 15, 2026
Mid-Morning
53°F 12°C
Sunny
Mid-Afternoon
69°F 20°C
Sunny
Early-Evening
69°F 20°C
Cloudy
Pleasant near 69°F 20°C, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and steady pressure. Winds turning from the NW to the E at 4 mph 6 km/h.
Wednesday, September 16, 2026
Mid-Morning
54°F 12°C
Overcast
Mid-Afternoon
66°F 19°C
Overcast
Early-Evening
68°F 20°C
Overcast
Mildly cool near 66°F 19°C, overcast throughout the day, with increasing humidity and barometric pressure falling. Winds blowing from the SSE at 18 mph 30 km/h. Gusts up to 20 mph 32 km/h.
Thursday, September 17, 2026
Mid-Morning
61°F 16°C
Scattered Showers
Mid-Afternoon
73°F 23°C
Overcast
Early-Evening
65°F 19°C
Light Showers
Enjoyable around 73°F 23°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds moving from the E to the ENE at 15 mph 23 km/h. Gusts up to 27 mph 43 km/h.
Friday, September 18, 2026
Mid-Morning
62°F 17°C
Fog
Mid-Afternoon
58°F 15°C
Scattered Showers
Early-Evening
57°F 14°C
Scattered Showers
Cool with a high near 58°F 15°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds swinging from the NE to the NNE at 9 mph 15 km/h.
Saturday, September 19, 2026
Mid-Morning
52°F 11°C
Overcast
Mid-Afternoon
55°F 13°C
Scattered Showers
Early-Evening
55°F 13°C
Overcast
Brisk around 55°F 13°C, scattered downpours possible, with steady humidity and steady pressure. Winds shifting from the NNE to the NE at 9 mph 14 km/h.
Sunday, September 20, 2026
Mid-Morning
52°F 11°C
Overcast
Mid-Afternoon
54°F 12°C
Light Showers
Early-Evening
54°F 12°C
Scattered Showers
Cool and brisk at 54°F 12°C, locally heavy downpours at times, with steady humidity and steady pressure.
Monday, September 21, 2026
Mid-Morning
53°F 11°C
Light Showers
Mid-Afternoon
57°F 14°C
Overcast
Early-Evening
54°F 12°C
Scattered Showers
Chilly near 57°F 14°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure.
Tuesday, September 22, 2026
Mid-Morning
52°F 11°C
Cloudy
Mid-Afternoon
63°F 17°C
Scattered Showers
Early-Evening
64°F 18°C
Overcast
Cool with a high near 63°F 17°C, scattered downpours possible, with steady humidity and steady pressure. Winds turning from the ENE to the E at 8 mph 12 km/h.
Wednesday, September 23, 2026
Mid-Morning
55°F 13°C
Light Showers
Mid-Afternoon
53°F 12°C
Light Showers
Early-Evening
54°F 13°C
Light Showers
Brisk around 53°F 12°C, on-and-off showers throughout the day, with steady humidity and steady pressure. Winds switching from the WSW to the NW at 10 mph 16 km/h. Gusts up to 24 mph 38 km/h.
Thursday, September 24, 2026
Mid-Morning
53°F 12°C
Sunny
Mid-Afternoon
63°F 17°C
Overcast
Early-Evening
65°F 19°C
Cloudy
Mildly cool near 63°F 17°C, sunny in the morning, cloudy in the afternoon, and sunny this evening, with lower humidity and barometric pressure falling. Winds moving from the NW to the SSW at 4 mph 7 km/h.
Friday, September 25, 2026
Mid-Morning
56°F 14°C
Sunny
Mid-Afternoon
63°F 17°C
Partly Cloudy
Early-Evening
58°F 14°C
Overcast
Comfortable at 63°F 17°C, sunny in the morning, cloudy in the afternoon, and overcast this evening, with steady humidity and barometric pressure rising. Winds swinging from the ESE to the SW at 13 mph 21 km/h. Gusts up to 23 mph 37 km/h.
Saturday, September 26, 2026
Mid-Morning
44°F 6°C
Light Showers
Mid-Afternoon
50°F 10°C
Scattered Showers
Early-Evening
55°F 13°C
Scattered Showers
Crisp with a high near 50°F 10°C, locally heavy downpours at times, with lower humidity and steady pressure. Winds shifting from the SSW to the SW at 3 mph 4 km/h.
Sunday, September 27, 2026
Mid-Morning
48°F 9°C
Sunny
Mid-Afternoon
56°F 13°C
Sunny
Early-Evening
58°F 15°C
Sunny
Brisk around 56°F 13°C, sunny throughout the day, with lower humidity and barometric pressure falling.
Monday, September 28, 2026
Mid-Morning
49°F 9°C
Sunny
Mid-Afternoon
63°F 17°C
Cloudy
Early-Evening
64°F 18°C
Sunny
Mildly cool near 63°F 17°C, sunny in the morning, partly cloudy in the afternoon, and cloudy this evening, with lower humidity and barometric pressure falling. Winds turning from the SSE to the SE at 12 mph 19 km/h. Gusts up to 23 mph 37 km/h.
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