Sweeney, SD 14 Day Weather - WeatherWorld.com
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Sweeney, SD Weather Forecast


Sweeney, SD Weather Forecast Dated: 1129 AM Tue Sep 15 2026
Expect a mild stretch with a mix of sun and clouds and mostly dry weather over the coming period. moderate humidity and no major pressure swings will dominate.
Tuesday, September 15, 2026
Mid-Morning
55°F 13°C
Sunny
Mid-Afternoon
69°F 20°C
Sunny
Early-Evening
70°F 21°C
Sunny
Pleasant near 69°F 20°C, sunny throughout the day, with lower humidity and steady pressure. Winds turning from the NW to the E at 6 mph 9 km/h.
Wednesday, September 16, 2026
Mid-Morning
56°F 13°C
Overcast
Mid-Afternoon
70°F 21°C
Cloudy
Early-Evening
71°F 21°C
Overcast
Comfortable with temperatures reaching 70°F 21°C, overcast throughout the day, with steady humidity and barometric pressure falling. Winds switching from the SE to the ESE at 14 mph 21 km/h. Gusts up to 21 mph 33 km/h.
Thursday, September 17, 2026
Mid-Morning
61°F 16°C
Light Showers
Mid-Afternoon
64°F 18°C
Scattered Showers
Early-Evening
64°F 18°C
Light Showers
Comfortable at 64°F 18°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds E at 15 mph 24 km/h. Gusts up to 33 mph 54 km/h.
Friday, September 18, 2026
Mid-Morning
61°F 16°C
Light Fog
Mid-Afternoon
63°F 17°C
Overcast
Early-Evening
60°F 15°C
Scattered Showers
Cool with a high near 63°F 17°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds out of the NNW at 9 mph 14 km/h.
Saturday, September 19, 2026
Mid-Morning
54°F 12°C
Overcast
Mid-Afternoon
60°F 16°C
Scattered Showers
Early-Evening
60°F 15°C
Overcast
Refreshing around 60°F 16°C, scattered downpours possible, with lower humidity and steady pressure. Winds shifting from the NNE to the NE at 9 mph 14 km/h.
Sunday, September 20, 2026
Mid-Morning
55°F 13°C
Overcast
Mid-Afternoon
62°F 17°C
Overcast
Early-Evening
58°F 15°C
Scattered Showers
Mildly cool near 62°F 17°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds turning from the NNE to the ENE at 9 mph 14 km/h.
Monday, September 21, 2026
Mid-Morning
52°F 11°C
Overcast
Mid-Afternoon
60°F 16°C
Partly Cloudy
Early-Evening
55°F 12°C
Sunny
Comfortable at 60°F 16°C, overcast in the morning, partly cloudy in the afternoon, and sunny this evening, with lower humidity and steady pressure. Winds switching from the NNE to the ENE at 11 mph 18 km/h.
Tuesday, September 22, 2026
Mid-Morning
49°F 10°C
Light Fog
Mid-Afternoon
67°F 19°C
Sunny
Early-Evening
67°F 20°C
Overcast
Cool with a high near 67°F 19°C, cloudy through the afternoon, turning overcast this evening, with lower humidity and barometric pressure falling. Winds moving from the SE to the ESE at 13 mph 21 km/h. Gusts up to 23 mph 37 km/h.
Wednesday, September 23, 2026
Mid-Morning
54°F 12°C
Partly Cloudy
Mid-Afternoon
64°F 18°C
Sunny
Early-Evening
66°F 19°C
Sunny
Refreshing around 64°F 18°C, sunny throughout the day, with lower humidity and steady pressure. Winds decreasing from NNW 19 mph 31 km/h to WNW 10 mph 16 km/h.
Thursday, September 24, 2026
Mid-Morning
56°F 14°C
Sunny
Mid-Afternoon
73°F 23°C
Sunny
Early-Evening
72°F 22°C
Sunny
Mild with a high of 73°F 23°C, sunny throughout the day, with steady humidity and barometric pressure falling. Winds picking up from SE at 8 mph 12 km/h to ESE at 17 mph 26 km/h. Gusts up to 29 mph 46 km/h.
Friday, September 25, 2026
Mid-Morning
67°F 19°C
Sunny
Mid-Afternoon
83°F 28°C
Sunny
Early-Evening
84°F 29°C
Sunny
Warm and summery near 83°F 28°C, sunny throughout the day, with lower humidity and steady pressure.
Saturday, September 26, 2026
Mid-Morning
71°F 22°C
Sunny
Mid-Afternoon
93°F 34°C
Overcast
Early-Evening
93°F 34°C
Overcast
Hot and sweltering around 93°F 34°C, sunny in the morning, becoming overcast through the afternoon and evening, with lower humidity and barometric pressure falling. Winds turning from the SE to the SSE at 16 mph 26 km/h. Gusts up to 29 mph 47 km/h.
Sunday, September 27, 2026
Mid-Morning
78°F 26°C
Sunny
Mid-Afternoon
91°F 33°C
Sunny
Early-Evening
70°F 21°C
Sunny
Sizzling hot with 91°F 33°C, sunny throughout the day, with steady humidity and barometric pressure rising. Winds increasing from the SW at 13 mph 20 km/h to NW at 32 mph 52 km/h. Gusts up to 45 mph 72 km/h.
Monday, September 28, 2026
Mid-Morning
52°F 11°C
Sunny
Mid-Afternoon
62°F 17°C
Sunny
Early-Evening
61°F 16°C
Sunny
Mildly cool near 62°F 17°C, sunny through the afternoon, turning cloudy this evening, with steady humidity and steady pressure. Winds moving from the WNW to the SE at 10 mph 16 km/h.
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