Lyman County, SD 14 Day Weather - WeatherWorld.com
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Lyman County, SD Weather Forecast


Lyman County, SD Weather Forecast Dated: 709 PM Tue Oct 06 2026
Expect a cool pattern with a mix of sun and clouds and occasional showers over the coming period. moderate humidity and no major pressure swings will dominate.
Tuesday, October 6, 2026
Mid-Morning
64°F 18°C
Sunny
Mid-Afternoon
84°F 29°C
Sunny
Early-Evening
75°F 24°C
Sunny
Warm and summery near 84°F 29°C, sunny throughout the day, with lower humidity and steady pressure. Winds turning from the NW to the NNE at 4 mph 7 km/h.
Wednesday, October 7, 2026
Mid-Morning
61°F 16°C
Overcast
Mid-Afternoon
78°F 26°C
Overcast
Early-Evening
69°F 21°C
Overcast
Comfortable with temperatures reaching 78°F 26°C, overcast throughout the day, with lower humidity and steady pressure. Winds switching from the W to the N at 7 mph 10 km/h.
Thursday, October 8, 2026
Mid-Morning
55°F 13°C
Overcast
Mid-Afternoon
76°F 24°C
Sunny
Early-Evening
71°F 22°C
Overcast
Enjoyable around 76°F 24°C, overcast in the morning, sunny in the afternoon, and overcast this evening, with steady humidity and barometric pressure falling. Winds moving from the SE to the ESE at 13 mph 21 km/h. Gusts up to 26 mph 42 km/h.
Friday, October 9, 2026
Mid-Morning
60°F 15°C
Sunny
Mid-Afternoon
83°F 29°C
Sunny
Early-Evening
78°F 26°C
Sunny
Warm temperatures up to 83°F 29°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds picking up from NW at 2 mph 3 km/h to SSE at 10 mph 15 km/h. Gusts up to 24 mph 38 km/h.
Saturday, October 10, 2026
Mid-Morning
71°F 22°C
Partly Cloudy
Mid-Afternoon
92°F 33°C
Sunny
Early-Evening
78°F 26°C
Cloudy
Very hot with a high of 92°F 33°C, partly cloudy in the morning, sunny in the afternoon, and partly cloudy this evening, with steady humidity and steady pressure. Winds tapering down from SSW 16 mph 26 km/h to NNE 8 mph 12 km/h.
Sunday, October 11, 2026
Mid-Morning
52°F 11°C
Sunny
Mid-Afternoon
59°F 15°C
Overcast
Early-Evening
53°F 12°C
Overcast
Mildly cool near 59°F 15°C, cloudy in the morning, becoming overcast through the afternoon and evening, with steady humidity and barometric pressure rising. Winds NNE at 15 mph 24 km/h.
Monday, October 12, 2026
Mid-Morning
43°F 6°C
Sunny
Mid-Afternoon
55°F 13°C
Overcast
Early-Evening
53°F 12°C
Cloudy
Chilly near 55°F 13°C, cloudy in the morning, overcast in the afternoon, and sunny this evening, with lower humidity and barometric pressure falling. Winds switching from the NE to the E at 8 mph 13 km/h.
Tuesday, October 13, 2026
Mid-Morning
52°F 11°C
Overcast
Mid-Afternoon
72°F 22°C
Overcast
Early-Evening
70°F 21°C
Overcast
Enjoyable around 72°F 22°C, overcast throughout the day, with steady humidity and barometric pressure falling. Winds blowing from the SE at 12 mph 19 km/h.
Wednesday, October 14, 2026
Mid-Morning
68°F 20°C
Overcast
Mid-Afternoon
75°F 24°C
Overcast
Early-Evening
68°F 20°C
Overcast
Mild temperatures up to 75°F 24°C, overcast throughout the day, with steady humidity and steady pressure. Winds swinging from the S to the SW at 14 mph 22 km/h. Gusts up to 23 mph 37 km/h.
Thursday, October 15, 2026
Mid-Morning
43°F 6°C
Rain
Mid-Afternoon
47°F 8°C
Scattered Showers
Early-Evening
45°F 7°C
Sunny
Cool and brisk at 47°F 8°C, periods of heavy rain and gusty conditions, with lower humidity and barometric pressure rising. Winds out of the NNW at 22 mph 35 km/h. Gusts up to 30 mph 48 km/h.
Friday, October 16, 2026
Mid-Morning
38°F 3°C
Sunny
Mid-Afternoon
45°F 7°C
Cloudy
Early-Evening
40°F 5°C
Sunny
Chilly near 45°F 7°C, sunny in the morning, partly cloudy in the afternoon, and sunny this evening, with steady humidity and steady pressure. Winds turning from the NNW to the NNE at 8 mph 12 km/h.
Saturday, October 17, 2026
Mid-Morning
35°F 2°C
Sunny
Mid-Afternoon
44°F 7°C
Sunny
Early-Evening
41°F 5°C
Sunny
Cold with a high near 44°F 7°C, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and barometric pressure falling.
Sunday, October 18, 2026
Mid-Morning
35°F 2°C
Heavy Snow
Mid-Afternoon
35°F 2°C
Heavy Snow
Early-Evening
35°F 2°C
Light Snow Showers
Nippy around 35°F 2°C, rounds of snow expected off and on all day, with increasing humidity and steady pressure. Snow accumulation up to 2 in. up to 5 cm. Winds switching from the NNE to the WSW at 7 mph 12 km/h.
Monday, October 19, 2026
Mid-Morning
35°F 2°C
Light Snow
Mid-Afternoon
39°F 4°C
Light Snow Showers
Early-Evening
39°F 4°C
Scattered Showers
Biting cold near 39°F 4°C, patchy blowing snow and gusty conditions, with lower humidity and steady pressure. Winds moving from the SSW to the ENE at 5 mph 9 km/h.
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