Posey Lake, SD 14 Day Weather
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Posey Lake, SD Weather Forecast


Posey Lake, SD Weather Forecast Dated: 319 PM Thu Oct 01 2026
Expect a mild stretch with plenty of sunshine and mostly dry weather over the coming period. comfortable humidity and no major pressure swings will dominate.
Thursday, October 1, 2026
Mid-Morning
49°F 10°C
Sunny
Mid-Afternoon
61°F 16°C
Sunny
Early-Evening
56°F 14°C
Sunny
Refreshing around 61°F 16°C, partly cloudy in the morning, becoming sunny through the afternoon and evening, with steady humidity and steady pressure. Winds turning from the NE to the E at 13 mph 21 km/h.
Friday, October 2, 2026
Mid-Morning
57°F 14°C
Sunny
Mid-Afternoon
78°F 26°C
Sunny
Early-Evening
71°F 22°C
Sunny
Comfortable with temperatures reaching 78°F 26°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds blowing from the SSW at 25 mph 40 km/h. Gusts up to 37 mph 60 km/h.
Saturday, October 3, 2026
Mid-Morning
66°F 19°C
Overcast
Mid-Afternoon
74°F 23°C
Overcast
Early-Evening
64°F 18°C
Sunny
Enjoyable around 74°F 23°C, overcast through the afternoon, turning sunny this evening, with lower humidity and barometric pressure rising. Winds moving from the NNW to the NNE at 11 mph 17 km/h.
Sunday, October 4, 2026
Mid-Morning
58°F 15°C
Sunny
Mid-Afternoon
74°F 23°C
Sunny
Early-Evening
65°F 18°C
Sunny
Mild temperatures up to 74°F 23°C, sunny throughout the day, with steady humidity and barometric pressure falling. Winds out of the SSE at 14 mph 23 km/h. Gusts up to 28 mph 45 km/h.
Monday, October 5, 2026
Mid-Morning
61°F 16°C
Sunny
Mid-Afternoon
84°F 29°C
Sunny
Early-Evening
72°F 22°C
Cloudy
Very warm with a high of 84°F 29°C, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and barometric pressure falling. Winds tapering down from S 19 mph 31 km/h to SSW 10 mph 16 km/h.
Tuesday, October 6, 2026
Mid-Morning
71°F 21°C
Overcast
Mid-Afternoon
84°F 29°C
Partly Cloudy
Early-Evening
71°F 21°C
Partly Cloudy
Warm and summery near 84°F 29°C, overcast in the morning, becoming cloudy through the afternoon and evening, with steady humidity and steady pressure. Winds turning from the W to the N at 9 mph 15 km/h.
Wednesday, October 7, 2026
Mid-Morning
58°F 14°C
Partly Cloudy
Mid-Afternoon
71°F 22°C
Partly Cloudy
Early-Evening
64°F 18°C
Sunny
Comfortable with temperatures reaching 71°F 22°C, cloudy in the morning, partly cloudy in the afternoon, and sunny this evening, with lower humidity and barometric pressure falling. Winds switching from the NE to the SSE at 9 mph 15 km/h.
Thursday, October 8, 2026
Mid-Morning
64°F 18°C
Sunny
Mid-Afternoon
78°F 26°C
Sunny
Early-Evening
67°F 19°C
Sunny
Enjoyable around 78°F 26°C, sunny throughout the day, with steady humidity and steady pressure. Winds moving from the N to the SE at 11 mph 17 km/h. Gusts up to 20 mph 31 km/h.
Friday, October 9, 2026
Mid-Morning
70°F 21°C
Sunny
Mid-Afternoon
87°F 31°C
Sunny
Early-Evening
73°F 23°C
Sunny
Warm temperatures up to 87°F 31°C, sunny throughout the day, with steady humidity and steady pressure. Winds swinging from the W to the ESE at 7 mph 11 km/h.
Saturday, October 10, 2026
Mid-Morning
71°F 22°C
Sunny
Mid-Afternoon
85°F 29°C
Sunny
Early-Evening
69°F 21°C
Sunny
Very warm with a high of 85°F 29°C, sunny throughout the day, with steady humidity and barometric pressure rising. Winds picking up from WSW at 8 mph 13 km/h to N at 28 mph 45 km/h. Gusts up to 38 mph 61 km/h.
Sunday, October 11, 2026
Mid-Morning
42°F 6°C
Partly Cloudy
Mid-Afternoon
55°F 13°C
Sunny
Early-Evening
48°F 9°C
Sunny
Chilly near 55°F 13°C, cloudy in the morning, becoming sunny through the afternoon and evening, with lower humidity and steady pressure. Winds turning from the N to the E at 7 mph 11 km/h.
Monday, October 12, 2026
Mid-Morning
49°F 10°C
Sunny
Mid-Afternoon
69°F 21°C
Sunny
Early-Evening
61°F 16°C
Sunny
Comfortable with temperatures reaching 69°F 21°C, sunny throughout the day, with steady humidity and barometric pressure falling. Winds decreasing from S 19 mph 30 km/h to SSW 11 mph 18 km/h. Gusts up to 23 mph 37 km/h.
Tuesday, October 13, 2026
Mid-Morning
61°F 16°C
Sunny
Mid-Afternoon
73°F 23°C
Sunny
Early-Evening
61°F 16°C
Sunny
Enjoyable around 73°F 23°C, sunny throughout the day, with steady humidity and steady pressure. Winds moving from the WNW to the NE at 5 mph 9 km/h.
Wednesday, October 14, 2026
Mid-Morning
60°F 15°C
Sunny
Mid-Afternoon
77°F 25°C
Sunny
Early-Evening
66°F 19°C
Sunny
Mild temperatures up to 77°F 25°C, sunny throughout the day, with steady humidity and barometric pressure falling. Winds swinging from the SE to the SSE at 15 mph 24 km/h. Gusts up to 33 mph 52 km/h.
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