Jefferson, SD 14 Day Weather - 57038 WeatherWorld.com
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Jefferson, SD Weather Forecast


Jefferson, SD Weather Forecast Dated: 642 AM Tue Sep 08 2026
Expect a mild stretch with a mix of sun and clouds and occasional showers over the coming period. moderate humidity and no major pressure swings will dominate.
Tuesday, September 8, 2026
Mid-Morning
75°F 24°C
Rain
Mid-Afternoon
91°F 33°C
Scattered Showers
Early-Evening
80°F 27°C
Light Showers
Very hot with temperatures reaching 91°F 33°C, periods of heavy rain and gusty conditions, with lower humidity and steady pressure. Winds out of the WNW at 16 mph 26 km/h.
Wednesday, September 9, 2026
Mid-Morning
69°F 21°C
Sunny
Mid-Afternoon
86°F 30°C
Sunny
Early-Evening
78°F 25°C
Sunny
Balmy with temperatures reaching 86°F 30°C, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and steady pressure. Winds switching from the NNW to the N at 10 mph 15 km/h.
Thursday, September 10, 2026
Mid-Morning
66°F 19°C
Sunny
Mid-Afternoon
87°F 31°C
Sunny
Early-Evening
83°F 28°C
Sunny
Quite warm around 87°F 31°C, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and barometric pressure falling. Winds increasing from the SE at 6 mph 9 km/h to SE at 15 mph 24 km/h. Gusts up to 28 mph 44 km/h.
Friday, September 11, 2026
Mid-Morning
74°F 23°C
Scattered Showers
Mid-Afternoon
91°F 33°C
Sunny
Early-Evening
78°F 26°C
Sunny
Hot temperatures near 91°F 33°C, periods of heavy rain and gusty conditions, with lower humidity and steady pressure. Winds swinging from the S to the SSW at 12 mph 19 km/h.
Saturday, September 12, 2026
Mid-Morning
56°F 14°C
Cloudy
Mid-Afternoon
88°F 31°C
Partly Cloudy
Early-Evening
85°F 30°C
Overcast
Very warm with a high of 88°F 31°C, cloudy in the morning, becoming overcast through the afternoon and evening, with lower humidity and barometric pressure falling. Winds shifting from the NNW to the ESE at 13 mph 21 km/h. Gusts up to 22 mph 35 km/h.
Sunday, September 13, 2026
Mid-Morning
74°F 24°C
Scattered Showers
Mid-Afternoon
87°F 31°C
Light Showers
Early-Evening
76°F 25°C
Scattered Showers
Very warm near 87°F 31°C, though humidity makes it feel like 92°F 33°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds turning from the SSE to the W at 7 mph 12 km/h.
Monday, September 14, 2026
Mid-Morning
52°F 11°C
Overcast
Mid-Afternoon
61°F 16°C
Sunny
Early-Evening
54°F 12°C
Sunny
Comfortable at 61°F 16°C, overcast in the morning, becoming sunny through the afternoon and evening, with lower humidity and barometric pressure rising. Winds out of the NW at 20 mph 32 km/h. Gusts up to 27 mph 43 km/h.
Tuesday, September 15, 2026
Mid-Morning
45°F 7°C
Sunny
Mid-Afternoon
60°F 16°C
Sunny
Early-Evening
60°F 16°C
Sunny
Cool with a high near 60°F 16°C, sunny throughout the day, with lower humidity and steady pressure. Winds moving from the NNW to the WSW at 4 mph 5 km/h.
Wednesday, September 16, 2026
Mid-Morning
55°F 13°C
Sunny
Mid-Afternoon
69°F 21°C
Partly Cloudy
Early-Evening
69°F 20°C
Sunny
Mild temperatures up to 69°F 21°C, sunny through the afternoon, turning overcast this evening, with steady humidity and steady pressure.
Thursday, September 17, 2026
Mid-Morning
58°F 14°C
Overcast
Mid-Afternoon
72°F 22°C
Sunny
Early-Evening
67°F 19°C
Overcast
Mild with a high of 72°F 22°C, overcast in the morning, cloudy in the afternoon, and overcast this evening, with lower humidity and barometric pressure falling. Winds SSW at 20 mph 32 km/h. Gusts up to 31 mph 50 km/h.
Friday, September 18, 2026
Mid-Morning
65°F 19°C
Overcast
Mid-Afternoon
58°F 15°C
Scattered Showers
Early-Evening
48°F 9°C
Scattered Showers
Comfortable at 58°F 15°C, scattered downpours possible, with steady humidity and barometric pressure rising. Winds shifting from the SSW to the NNW at 15 mph 25 km/h. Gusts up to 32 mph 51 km/h.
Saturday, September 19, 2026
Mid-Morning
45°F 7°C
Overcast
Mid-Afternoon
57°F 14°C
Overcast
Early-Evening
55°F 13°C
Overcast
Crisp with a high near 57°F 14°C, cloudy in the morning, overcast in the afternoon, and sunny this evening, with lower humidity and barometric pressure falling. Winds turning from the SE to the ESE at 5 mph 8 km/h.
Sunday, September 20, 2026
Mid-Morning
49°F 9°C
Overcast
Mid-Afternoon
63°F 17°C
Partly Cloudy
Early-Evening
61°F 17°C
Sunny
Refreshing around 63°F 17°C, cloudy in the morning, becoming sunny through the afternoon and evening, with steady humidity and barometric pressure falling. Winds switching from the SSE to the SE at 9 mph 15 km/h.
Monday, September 21, 2026
Mid-Morning
58°F 15°C
Cloudy
Mid-Afternoon
78°F 26°C
Sunny
Early-Evening
75°F 24°C
Sunny
Mild temperatures up to 78°F 26°C, partly cloudy in the morning, becoming sunny through the afternoon and evening, with steady humidity and steady pressure. Winds moving from the S to the SSE at 10 mph 16 km/h. Gusts up to 21 mph 34 km/h.
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