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Johnson Dam, SD Weather Forecast
Johnson Dam, SD Weather Forecast Dated: 949 PM Wed Nov 11 2026
Expect a cool pattern with a mix of sun and clouds and occasional showers over the coming period. generally humid conditions and a stable pattern will dominate.
Wednesday, November 11, 2026
Mid-Morning
45°F 7°C
Partly Cloudy
Mid-Afternoon
53°F 12°C
Sunny
Early-Evening
44°F 7°C
Clear
Brisk around 53°F 12°C, cloudy in the morning, sunny in the afternoon, and partly cloudy this evening, with steady humidity and steady pressure.
Thursday, November 12, 2026
Mid-Morning
38°F 3°C
Partly Cloudy
Mid-Afternoon
43°F 6°C
Partly Cloudy
Early-Evening
38°F 4°C
Partly Cloudy
Biting cold near 43°F 6°C, cloudy through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure. Winds out of the SSE at 10 mph 17 km/h.
Friday, November 13, 2026
Mid-Morning
35°F 2°C
Cloudy
Mid-Afternoon
42°F 6°C
Cloudy
Early-Evening
37°F 3°C
Overcast
Cold with a high near 42°F 6°C, cloudy through the afternoon, turning overcast this evening, with steady humidity and barometric pressure falling. Winds blowing from the SE at 16 mph 26 km/h. Gusts up to 30 mph 47 km/h.
Saturday, November 14, 2026
Mid-Morning
38°F 3°C
Cloudy
Mid-Afternoon
46°F 8°C
Cloudy
Early-Evening
42°F 6°C
Partly Cloudy
Crisp with a high near 46°F 8°C, overcast in the morning, cloudy in the afternoon, and partly cloudy this evening, with steady humidity and steady pressure. Winds SE at 17 mph 28 km/h. Gusts up to 29 mph 45 km/h.
Sunday, November 15, 2026
Mid-Morning
41°F 5°C
Partly Cloudy
Mid-Afternoon
55°F 13°C
Sunny
Early-Evening
47°F 8°C
Clear
Brisk around 55°F 13°C, partly cloudy in the morning, becoming sunny through the afternoon and evening, with steady humidity and steady pressure. Winds swinging from the S to the SSW at 6 mph 9 km/h.
Monday, November 16, 2026
Mid-Morning
46°F 8°C
Partly Cloudy
Mid-Afternoon
55°F 13°C
Overcast
Early-Evening
49°F 10°C
Overcast
Cool and brisk at 55°F 13°C, partly cloudy in the morning, cloudy in the afternoon, and overcast this evening, with steady humidity and steady pressure. Winds shifting from the S to the SSE at 7 mph 12 km/h.
Tuesday, November 17, 2026
Mid-Morning
47°F 9°C
Partly Cloudy
Mid-Afternoon
51°F 11°C
Partly Cloudy
Early-Evening
46°F 8°C
Partly Cloudy
Chilly near 51°F 11°C, partly cloudy throughout the day, with steady humidity and steady pressure.
Wednesday, November 18, 2026
Mid-Morning
43°F 6°C
Scattered Showers
Mid-Afternoon
46°F 8°C
Drizzle
Early-Evening
42°F 6°C
Drizzle
Crisp with a high near 46°F 8°C, scattered downpours possible, with steady humidity and steady pressure. Winds turning from the SW to the N at 12 mph 19 km/h. Gusts up to 22 mph 36 km/h.
Thursday, November 19, 2026
Mid-Morning
38°F 4°C
Scattered Showers
Mid-Afternoon
38°F 4°C
Overcast
Early-Evening
34°F 2°C
Cloudy
Cold with a high near 38°F 4°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds switching from the WSW to the N at 6 mph 9 km/h.
Friday, November 20, 2026
Mid-Morning
34°F 1°C
Patchy Moderate Snow
Mid-Afternoon
36°F 2°C
Partly Cloudy
Early-Evening
33°F 1°C
Cloudy
Nippy around 36°F 2°C, early snow breaking for a drier afternoon, with steady humidity and steady pressure.
Saturday, November 21, 2026
Mid-Morning
34°F 1°C
Heavy Snow
Mid-Afternoon
34°F 1°C
Snow
Early-Evening
34°F 1°C
Snow
Biting cold near 34°F 1°C, persistent snow off and on through the day, with steady humidity and steady pressure. Snow accumulation up to 1 in. up to 3 cm.
Sunday, November 22, 2026
Mid-Morning
29°F -2°C
Patchy Moderate Snow
Mid-Afternoon
31°F 0°C
Freezing Rain
Early-Evening
30°F -2°C
Overcast
Frigid with highs around 31°F 0°C, snow through the afternoon, tapering off by evening, with steady humidity and steady pressure. Winds moving from the NNW to the NW at 4 mph 6 km/h.
Monday, November 23, 2026
Mid-Morning
27°F -3°C
Freezing Rain
Mid-Afternoon
26°F -3°C
Partly Cloudy
Early-Evening
24°F -5°C
Cloudy
Freezing near 26°F -3°C, early freezing rain breaking for a drier afternoon, with steady humidity and steady pressure. Winds swinging from the NW to the W at 4 mph 7 km/h.
Tuesday, November 24, 2026
Mid-Morning
22°F -6°C
Partly Cloudy
Mid-Afternoon
24°F -5°C
Partly Cloudy
Early-Evening
22°F -6°C
Light Snow
Freezing temperatures near 24°F -5°C, mainly dry until evening snow arrive, with steady humidity and steady pressure.
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