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Lyman, SD Weather Forecast
Lyman, SD Weather Forecast Dated: 632 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
Overcast
Mid-Afternoon
84°F 29°C
Overcast
Early-Evening
79°F 26°C
Partly Cloudy
Warm and summery near 84°F 29°C, overcast through the afternoon, turning partly cloudy this evening, with lower humidity and steady pressure. Winds turning from the SE to the S at 18 mph 28 km/h. Gusts up to 32 mph 51 km/h.
Saturday, October 24, 2026
Mid-Morning
50°F 10°C
Overcast
Mid-Afternoon
57°F 14°C
Overcast
Early-Evening
54°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 20 mph 33 km/h to NNW 6 mph 10 km/h.
Sunday, October 25, 2026
Mid-Morning
48°F 9°C
Overcast
Mid-Afternoon
44°F 6°C
Drizzle
Early-Evening
42°F 5°C
Drizzle
Cold with a high near 44°F 6°C, dry early, with showers continuing through afternoon and evening, with increasing humidity and steady pressure. Winds moving from the E to the ENE at 11 mph 17 km/h. Gusts up to 20 mph 31 km/h.
Monday, October 26, 2026
Mid-Morning
41°F 5°C
Rain
Mid-Afternoon
40°F 4°C
Light Rain
Early-Evening
40°F 4°C
Overcast
Nippy around 40°F 4°C, intermittent showers through midday, easing by evening, with steady humidity and barometric pressure falling. Winds swinging from the NE to the NNE at 8 mph 12 km/h.
Tuesday, October 27, 2026
Mid-Morning
40°F 5°C
Scattered Showers
Mid-Afternoon
49°F 10°C
Partly Cloudy
Early-Evening
50°F 10°C
Overcast
Brisk around 49°F 10°C, scattered downpours possible, with steady humidity and barometric pressure falling. Winds shifting from the W to the ESE at 12 mph 19 km/h. Gusts up to 24 mph 38 km/h.
Wednesday, October 28, 2026
Mid-Morning
49°F 9°C
Partly Cloudy
Mid-Afternoon
55°F 13°C
Scattered Showers
Early-Evening
50°F 10°C
Overcast
Cool and brisk at 55°F 13°C, locally heavy downpours at times, with steady humidity and barometric pressure rising. Winds turning from the W to the WNW at 15 mph 24 km/h. Gusts up to 31 mph 50 km/h.
Thursday, October 29, 2026
Mid-Morning
42°F 5°C
Sunny
Mid-Afternoon
50°F 10°C
Sunny
Early-Evening
45°F 7°C
Sunny
Chilly near 50°F 10°C, sunny throughout the day, with steady humidity and steady pressure. Winds switching from the WNW to the S at 3 mph 5 km/h.
Friday, October 30, 2026
Mid-Morning
41°F 5°C
Cloudy
Mid-Afternoon
53°F 12°C
Partly Cloudy
Early-Evening
49°F 9°C
Partly Cloudy
Crisp with a high near 53°F 12°C, cloudy in the morning, becoming partly cloudy through the afternoon and evening, with steady humidity and barometric pressure falling.
Saturday, October 31, 2026
Mid-Morning
50°F 10°C
Overcast
Mid-Afternoon
61°F 16°C
Partly Cloudy
Early-Evening
56°F 14°C
Partly Cloudy
Refreshing around 61°F 16°C, cloudy in the morning, becoming partly cloudy through the afternoon and evening, with lower humidity and steady pressure.
Sunday, November 1, 2026
Mid-Morning
52°F 11°C
Partly Cloudy
Mid-Afternoon
57°F 14°C
Cloudy
Early-Evening
54°F 13°C
Overcast
Cool and brisk at 57°F 14°C, cloudy in the morning, becoming overcast through the afternoon and evening, with steady humidity and steady pressure. Winds moving from the ENE to the E at 8 mph 13 km/h.
Monday, November 2, 2026
Mid-Morning
51°F 11°C
Rain
Mid-Afternoon
51°F 11°C
Drizzle
Early-Evening
50°F 10°C
Light Rain
Chilly near 51°F 11°C, persistent showers off and on through the day, with steady humidity and steady pressure. Winds swinging from the ENE to the NNE at 12 mph 19 km/h. Gusts up to 25 mph 40 km/h.
Tuesday, November 3, 2026
Mid-Morning
46°F 8°C
Scattered Showers
Mid-Afternoon
50°F 10°C
Sunny
Early-Evening
45°F 7°C
Clear
Crisp with a high near 50°F 10°C, locally heavy downpours at times, with lower humidity and steady pressure. Winds easing from NNW 14 mph 22 km/h to WNW 6 mph 10 km/h.
Wednesday, November 4, 2026
Mid-Morning
45°F 7°C
Sunny
Mid-Afternoon
58°F 14°C
Sunny
Early-Evening
51°F 11°C
Clear
Refreshing around 58°F 14°C, sunny throughout the day, with increasing humidity and barometric pressure falling.
Thursday, November 5, 2026
Mid-Morning
49°F 10°C
Partly Cloudy
Mid-Afternoon
58°F 15°C
Partly Cloudy
Early-Evening
53°F 12°C
Partly Cloudy
Mildly cool near 58°F 15°C, cloudy throughout the day, with steady humidity and steady pressure. Winds turning from the E to the SE at 11 mph 17 km/h.
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