Old Town, SD 14 Day Weather - WeatherWorld.com
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Old Town, SD Weather Forecast


Old Town, SD Weather Forecast Dated: 1023 AM Mon Sep 07 2026
Expect a very warm period with plenty of sunshine and mostly dry weather over the coming period. comfortable humidity and no major pressure swings will dominate.
Monday, September 7, 2026
Mid-Morning
71°F 21°C
Heavy Rain
Mid-Afternoon
85°F 29°C
Heavy Rain
Early-Evening
82°F 28°C
Overcast
Warm and summery near 85°F 29°C, intermittent showers through midday, easing by evening, with lower humidity and steady pressure. Winds turning from the WSW to the WNW at 11 mph 17 km/h.
Tuesday, September 8, 2026
Mid-Morning
70°F 21°C
Sunny
Mid-Afternoon
84°F 29°C
Sunny
Early-Evening
71°F 22°C
Sunny
Balmy with temperatures reaching 84°F 29°C, sunny throughout the day, with steady humidity and steady pressure. Winds blowing from the E at 14 mph 22 km/h.
Wednesday, September 9, 2026
Mid-Morning
68°F 20°C
Sunny
Mid-Afternoon
79°F 26°C
Partly Cloudy
Early-Evening
70°F 21°C
Sunny
Enjoyable around 79°F 26°C, sunny in the morning, partly cloudy in the afternoon, and sunny this evening, with steady humidity and barometric pressure falling. Winds moving from the NW to the WSW at 8 mph 13 km/h.
Thursday, September 10, 2026
Mid-Morning
79°F 26°C
Sunny
Mid-Afternoon
91°F 33°C
Sunny
Early-Evening
80°F 27°C
Sunny
Hot temperatures near 91°F 33°C, sunny throughout the day, with steady humidity and barometric pressure falling. Winds swinging from the WSW to the W at 10 mph 16 km/h.
Friday, September 11, 2026
Mid-Morning
71°F 22°C
Partly Cloudy
Mid-Afternoon
76°F 25°C
Partly Cloudy
Early-Evening
69°F 21°C
Sunny
Mild with a high of 76°F 25°C, partly cloudy in the morning, cloudy in the afternoon, and partly cloudy this evening, with steady humidity and barometric pressure rising. Winds tapering down from N 17 mph 28 km/h to SSE 8 mph 13 km/h.
Saturday, September 12, 2026
Mid-Morning
70°F 21°C
Sunny
Mid-Afternoon
95°F 35°C
Cloudy
Early-Evening
79°F 26°C
Scattered Showers
Very hot with temperatures reaching 95°F 35°C, locally heavy downpours at times, with steady humidity and barometric pressure falling. Winds decreasing from S 20 mph 32 km/h to SSE 9 mph 14 km/h.
Sunday, September 13, 2026
Mid-Morning
66°F 19°C
Sunny
Mid-Afternoon
80°F 27°C
Sunny
Early-Evening
61°F 16°C
Sunny
Balmy with temperatures reaching 80°F 27°C, sunny throughout the day, with lower humidity and barometric pressure rising. Winds picking up from NNE at 9 mph 14 km/h to NNW at 23 mph 37 km/h. Gusts up to 30 mph 48 km/h.
Monday, September 14, 2026
Mid-Morning
48°F 9°C
Sunny
Mid-Afternoon
61°F 16°C
Sunny
Early-Evening
52°F 11°C
Sunny
Cool with a high near 61°F 16°C, sunny throughout the day, with steady humidity and steady pressure. Winds moving from the N to the NNW at 7 mph 11 km/h.
Tuesday, September 15, 2026
Mid-Morning
53°F 12°C
Sunny
Mid-Afternoon
71°F 22°C
Sunny
Early-Evening
64°F 18°C
Sunny
Mild temperatures up to 71°F 22°C, sunny throughout the day, with steady humidity and barometric pressure falling. Winds swinging from the SSE to the SW at 10 mph 15 km/h.
Wednesday, September 16, 2026
Mid-Morning
67°F 20°C
Sunny
Mid-Afternoon
82°F 28°C
Sunny
Early-Evening
70°F 22°C
Overcast
Very warm with a high of 82°F 28°C, sunny through the afternoon, turning overcast this evening, with steady humidity and steady pressure. Winds shifting from the SSE to the WSW at 6 mph 9 km/h.
Thursday, September 17, 2026
Mid-Morning
69°F 21°C
Sunny
Mid-Afternoon
86°F 30°C
Sunny
Early-Evening
78°F 26°C
Sunny
Warm and summery near 86°F 30°C, sunny through the afternoon, turning cloudy this evening, with steady humidity and barometric pressure falling. Winds turning from the ENE to the SSW at 9 mph 14 km/h.
Friday, September 18, 2026
Mid-Morning
73°F 23°C
Overcast
Mid-Afternoon
82°F 28°C
Sunny
Early-Evening
70°F 21°C
Sunny
Balmy with temperatures reaching 82°F 28°C, overcast in the morning, sunny in the afternoon, and partly cloudy this evening, with lower humidity and barometric pressure rising. Winds increasing from the NNW at 4 mph 6 km/h to NW at 13 mph 21 km/h.
Saturday, September 19, 2026
Mid-Morning
55°F 13°C
Overcast
Mid-Afternoon
61°F 16°C
Sunny
Early-Evening
52°F 11°C
Sunny
Refreshing around 61°F 16°C, overcast in the morning, becoming sunny through the afternoon and evening, with steady humidity and barometric pressure rising. Winds moving from the NNE to the SE at 7 mph 12 km/h.
Sunday, September 20, 2026
Mid-Morning
58°F 15°C
Sunny
Mid-Afternoon
83°F 28°C
Sunny
Early-Evening
74°F 23°C
Sunny
Warm temperatures up to 83°F 28°C, sunny throughout the day, with steady humidity and barometric pressure falling. Winds tapering down from S 25 mph 40 km/h to SSW 9 mph 15 km/h.
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