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Harney Peak, SD Weather Forecast
Harney Peak, SD Weather Forecast Dated: 1211 AM Mon Oct 05 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.
Monday, October 5, 2026
Mid-Morning
69°F 21°C
Sunny
Mid-Afternoon
83°F 29°C
Partly Cloudy
Early-Evening
66°F 19°C
Sunny
Warm and summery near 83°F 29°C, sunny in the morning, partly cloudy in the afternoon, and sunny this evening, with steady humidity and steady pressure. Winds turning from the WSW to the W at 5 mph 8 km/h.
Tuesday, October 6, 2026
Mid-Morning
70°F 21°C
Sunny
Mid-Afternoon
80°F 27°C
Sunny
Early-Evening
62°F 17°C
Sunny
Balmy with temperatures reaching 80°F 27°C, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure.
Wednesday, October 7, 2026
Mid-Morning
60°F 15°C
Sunny
Mid-Afternoon
71°F 22°C
Overcast
Early-Evening
58°F 15°C
Overcast
Enjoyable around 71°F 22°C, sunny in the morning, becoming overcast through the afternoon and evening, with increasing humidity and steady pressure.
Thursday, October 8, 2026
Mid-Morning
54°F 12°C
Sunny
Mid-Afternoon
62°F 17°C
Partly Cloudy
Early-Evening
50°F 11°C
Overcast
Cool with a high near 62°F 17°C, partly cloudy through the afternoon, turning overcast this evening, with increasing humidity and steady pressure. Winds switching from the NNE to the N at 3 mph 4 km/h.
Friday, October 9, 2026
Mid-Morning
51°F 10°C
Cloudy
Mid-Afternoon
65°F 18°C
Sunny
Early-Evening
55°F 13°C
Overcast
Refreshing around 65°F 18°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 SSW at 9 mph 14 km/h. Gusts up to 22 mph 36 km/h.
Saturday, October 10, 2026
Mid-Morning
66°F 19°C
Partly Cloudy
Mid-Afternoon
78°F 25°C
Sunny
Early-Evening
60°F 16°C
Cloudy
Pleasant near 78°F 25°C, partly cloudy in the morning, sunny in the afternoon, and overcast this evening, with increasing humidity and steady pressure. Winds easing from W 14 mph 22 km/h to W 3 mph 4 km/h.
Sunday, October 11, 2026
Mid-Morning
44°F 7°C
Overcast
Mid-Afternoon
48°F 9°C
Overcast
Early-Evening
40°F 5°C
Scattered Showers
Chilly near 48°F 9°C, periods of heavy rain and gusty conditions, with increasing humidity and steady pressure. Winds blowing from the NE at 9 mph 15 km/h.
Monday, October 12, 2026
Mid-Morning
29°F -1°C
Heavy Snow
Mid-Afternoon
29°F -2°C
Snow
Early-Evening
26°F -4°C
Heavy Snow
Freezing temperatures near 29°F -2°C, persistent snow off and on through the day, with steady humidity and barometric pressure rising. New snow accumulation of 5 to 8 in. 13 to 20 cm. Winds NNE at 9 mph 15 km/h.
Tuesday, October 13, 2026
Mid-Morning
26°F -4°C
Snow
Mid-Afternoon
27°F -3°C
Light Snow Showers
Early-Evening
25°F -5°C
Snow
Frigid with highs around 27°F -3°C, on-and-off snow throughout the day, with steady humidity and steady pressure.
Wednesday, October 14, 2026
Mid-Morning
31°F -1°C
Sunny
Mid-Afternoon
41°F 5°C
Partly Cloudy
Early-Evening
33°F 1°C
Fog
Nippy around 41°F 5°C, sunny in the morning, becoming cloudy through the afternoon and evening, with increasing humidity and steady pressure.
Thursday, October 15, 2026
Mid-Morning
41°F 5°C
Overcast
Mid-Afternoon
54°F 12°C
Scattered Showers
Early-Evening
40°F 5°C
Sunny
Chilly near 54°F 12°C, scattered downpours possible, with steady humidity and steady pressure.
Friday, October 16, 2026
Mid-Morning
38°F 3°C
Overcast
Mid-Afternoon
47°F 8°C
Overcast
Early-Evening
37°F 3°C
Overcast
Crisp with a high near 47°F 8°C, overcast throughout the day, with steady humidity and steady pressure. Winds easing from NW 17 mph 27 km/h to W 7 mph 11 km/h.
Saturday, October 17, 2026
Mid-Morning
36°F 2°C
Sunny
Mid-Afternoon
46°F 8°C
Sunny
Early-Evening
35°F 2°C
Sunny
Brisk around 46°F 8°C, sunny throughout the day, with steady humidity and steady pressure. Winds moving from the NW to the W at 6 mph 10 km/h.
Sunday, October 18, 2026
Mid-Morning
47°F 8°C
Sunny
Mid-Afternoon
62°F 17°C
Sunny
Early-Evening
50°F 11°C
Sunny
Mildly cool near 62°F 17°C, sunny throughout the day, with steady humidity and barometric pressure falling. Winds swinging from the W to the WNW at 11 mph 17 km/h. Gusts up to 33 mph 53 km/h.
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