Post Lake, SD 14 Day Weather
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Post Lake, SD Weather Forecast


Post Lake, SD Weather Forecast Dated: 242 PM Fri Oct 23 2026
Expect a cool pattern with a mix of sun and clouds and frequent chances of rain over the coming period. moderate humidity and a stable pattern will dominate.
Friday, October 23, 2026
Mid-Morning
63°F 17°C
Drizzle
Mid-Afternoon
83°F 29°C
Overcast
Early-Evening
75°F 24°C
Sunny
Warm and summery near 83°F 29°C, early showers breaking for a drier afternoon, with lower humidity and steady pressure. Winds easing from SSE 19 mph 30 km/h to SSW 10 mph 17 km/h.
Saturday, October 24, 2026
Mid-Morning
49°F 9°C
Overcast
Mid-Afternoon
57°F 14°C
Overcast
Early-Evening
53°F 12°C
Overcast
Cool and brisk at 57°F 14°C, overcast throughout the day, with lower humidity and steady pressure. Winds tapering down from NW 19 mph 30 km/h to NE 5 mph 8 km/h.
Sunday, October 25, 2026
Mid-Morning
45°F 7°C
Overcast
Mid-Afternoon
43°F 6°C
Scattered Showers
Early-Evening
41°F 5°C
Drizzle
Cold with a high near 43°F 6°C, locally heavy downpours at times, with increasing humidity and steady pressure. Winds ENE at 10 mph 16 km/h. Gusts up to 21 mph 34 km/h.
Monday, October 26, 2026
Mid-Morning
40°F 5°C
Light Rain
Mid-Afternoon
39°F 4°C
Light Rain
Early-Evening
39°F 4°C
Scattered Showers
Nippy around 39°F 4°C, periods of heavy rain and gusty conditions, with steady humidity and barometric pressure falling. Winds swinging from the ENE to the NE at 12 mph 18 km/h.
Tuesday, October 27, 2026
Mid-Morning
40°F 4°C
Overcast
Mid-Afternoon
48°F 9°C
Partly Cloudy
Early-Evening
48°F 9°C
Overcast
Brisk around 48°F 9°C, overcast in the morning, partly cloudy in the afternoon, and overcast this evening, with steady humidity and barometric pressure falling. Winds shifting from the WNW to the ESE at 11 mph 18 km/h. Gusts up to 22 mph 35 km/h.
Wednesday, October 28, 2026
Mid-Morning
47°F 8°C
Scattered Showers
Mid-Afternoon
53°F 11°C
Partly Cloudy
Early-Evening
47°F 9°C
Partly Cloudy
Cool and brisk at 53°F 11°C, locally heavy downpours at times, with steady humidity and barometric pressure rising. Winds WNW at 20 mph 32 km/h. Gusts up to 34 mph 55 km/h.
Thursday, October 29, 2026
Mid-Morning
41°F 5°C
Sunny
Mid-Afternoon
48°F 9°C
Partly Cloudy
Early-Evening
43°F 6°C
Sunny
Chilly near 48°F 9°C, partly cloudy in the morning, becoming sunny through the afternoon and evening, with steady humidity and steady pressure. Winds switching from the WNW to the SSW at 3 mph 5 km/h.
Friday, October 30, 2026
Mid-Morning
40°F 5°C
Partly Cloudy
Mid-Afternoon
52°F 11°C
Partly Cloudy
Early-Evening
47°F 9°C
Partly Cloudy
Crisp with a high near 52°F 11°C, partly cloudy throughout the day, with lower humidity and barometric pressure falling. Winds blowing from the SSE at 6 mph 9 km/h. Gusts up to 21 mph 34 km/h.
Saturday, October 31, 2026
Mid-Morning
48°F 9°C
Cloudy
Mid-Afternoon
59°F 15°C
Sunny
Early-Evening
55°F 13°C
Sunny
Refreshing around 59°F 15°C, partly cloudy in the morning, sunny in the afternoon, and partly cloudy this evening, with lower humidity and steady pressure.
Sunday, November 1, 2026
Mid-Morning
50°F 10°C
Partly Cloudy
Mid-Afternoon
56°F 14°C
Cloudy
Early-Evening
52°F 11°C
Overcast
Cool and brisk at 56°F 14°C, partly cloudy in the morning, cloudy in the afternoon, and overcast this evening, with steady humidity and steady pressure.
Monday, November 2, 2026
Mid-Morning
50°F 10°C
Heavy Rain Showers
Mid-Afternoon
50°F 10°C
Light Rain
Early-Evening
49°F 10°C
Light Rain
Chilly near 50°F 10°C, persistent showers off and on through the day, with steady humidity and steady pressure. Winds swinging from the NE to the NNE at 14 mph 22 km/h. Gusts up to 26 mph 41 km/h.
Tuesday, November 3, 2026
Mid-Morning
46°F 8°C
Sunny
Mid-Afternoon
50°F 10°C
Sunny
Early-Evening
44°F 7°C
Clear
Crisp with a high near 50°F 10°C, sunny throughout the day, with steady humidity and steady pressure. Winds shifting from the NNW to the WNW at 6 mph 9 km/h.
Wednesday, November 4, 2026
Mid-Morning
45°F 7°C
Partly Cloudy
Mid-Afternoon
55°F 13°C
Sunny
Early-Evening
50°F 10°C
Clear
Brisk around 55°F 13°C, partly cloudy in the morning, becoming sunny through the afternoon and evening, with steady humidity and barometric pressure falling.
Thursday, November 5, 2026
Mid-Morning
48°F 9°C
Cloudy
Mid-Afternoon
57°F 14°C
Partly Cloudy
Early-Evening
51°F 11°C
Partly Cloudy
Cool and brisk at 57°F 14°C, cloudy throughout the day, with steady humidity and barometric pressure falling. Winds turning from the ENE to the SE at 11 mph 17 km/h.
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