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Reliance, SD Weather Forecast


Reliance, SD Weather Forecast Dated: 347 AM Fri Sep 04 2026
Expect a very warm period with a mix of sun and clouds and occasional showers over the coming period. comfortable humidity and no major pressure swings will dominate.
Friday, September 4, 2026
Mid-Morning
73°F 23°C
Overcast
Mid-Afternoon
100°F 38°C
Sunny
Early-Evening
92°F 34°C
Sunny
Scorching hot near 100°F 38°C, overcast in the morning, sunny in the afternoon, and partly cloudy this evening, with lower humidity and steady pressure. Winds turning from the ENE to the SE at 10 mph 16 km/h.
Saturday, September 5, 2026
Mid-Morning
77°F 25°C
Sunny
Mid-Afternoon
98°F 37°C
Nearby Thunderstorms
Early-Evening
97°F 36°C
Overcast
Hot and sweltering around 98°F 37°C, locally heavy thunderstorms at times, with lower humidity and steady pressure. Winds switching from the SSE to the W at 7 mph 11 km/h.
Sunday, September 6, 2026
Mid-Morning
72°F 22°C
Scattered Showers
Mid-Afternoon
94°F 35°C
Sunny
Early-Evening
93°F 34°C
Sunny
Sizzling hot with 94°F 35°C, locally heavy downpours at times, with lower humidity and barometric pressure falling. Winds moving from the SE to the ESE at 11 mph 17 km/h.
Monday, September 7, 2026
Mid-Morning
71°F 22°C
Overcast
Mid-Afternoon
93°F 34°C
Sunny
Early-Evening
93°F 34°C
Sunny
Hot temperatures near 93°F 34°C, overcast in the morning, sunny in the afternoon, and cloudy this evening, with lower humidity and barometric pressure falling. Winds out of the SSW at 11 mph 18 km/h.
Tuesday, September 8, 2026
Mid-Morning
71°F 22°C
Sunny
Mid-Afternoon
87°F 31°C
Overcast
Early-Evening
85°F 30°C
Overcast
Very warm with a high of 87°F 31°C, sunny in the morning, overcast in the afternoon, and cloudy this evening, with lower humidity and steady pressure. Winds shifting from the SW to the ESE at 9 mph 13 km/h.
Wednesday, September 9, 2026
Mid-Morning
76°F 24°C
Overcast
Mid-Afternoon
90°F 32°C
Overcast
Early-Evening
85°F 30°C
Sunny
Very hot with temperatures reaching 90°F 32°C, overcast in the morning, partly cloudy in the afternoon, and cloudy this evening, with steady humidity and steady pressure. Winds SSE at 12 mph 20 km/h.
Thursday, September 10, 2026
Mid-Morning
68°F 20°C
Overcast
Mid-Afternoon
93°F 34°C
Overcast
Early-Evening
91°F 33°C
Sunny
Hot and sweltering around 93°F 34°C, overcast in the morning, becoming partly cloudy through the afternoon and evening, with lower humidity and barometric pressure falling. Winds switching from the ENE to the SE at 13 mph 22 km/h. Gusts up to 22 mph 35 km/h.
Friday, September 11, 2026
Mid-Morning
83°F 28°C
Sunny
Mid-Afternoon
78°F 26°C
Scattered Showers
Early-Evening
76°F 24°C
Heavy Rain Showers
Enjoyable around 78°F 26°C, scattered downpours possible, with increasing humidity and steady pressure. Winds moving from the SSW to the WNW at 10 mph 16 km/h.
Saturday, September 12, 2026
Mid-Morning
67°F 19°C
Sunny
Mid-Afternoon
86°F 30°C
Sunny
Early-Evening
86°F 30°C
Sunny
Warm temperatures up to 86°F 30°C, sunny through the afternoon, turning cloudy this evening, with lower humidity and barometric pressure falling. Winds swinging from the SSE to the S at 11 mph 18 km/h.
Sunday, September 13, 2026
Mid-Morning
59°F 15°C
Overcast
Mid-Afternoon
70°F 21°C
Sunny
Early-Evening
68°F 20°C
Sunny
Mild with a high of 70°F 21°C, overcast in the morning, becoming sunny through the afternoon and evening, with lower humidity and steady pressure. Winds shifting from the NW to the W at 13 mph 21 km/h. Gusts up to 23 mph 37 km/h.
Monday, September 14, 2026
Mid-Morning
65°F 18°C
Sunny
Mid-Afternoon
82°F 28°C
Cloudy
Early-Evening
84°F 29°C
Partly Cloudy
Warm and summery near 82°F 28°C, sunny in the morning, cloudy in the afternoon, and partly cloudy this evening, with steady humidity and barometric pressure falling. Winds building from SSW at 13 mph 21 km/h to S at 22 mph 37 km/h. Gusts up to 39 mph 63 km/h.
Tuesday, September 15, 2026
Mid-Morning
64°F 18°C
Sunny
Mid-Afternoon
73°F 23°C
Overcast
Early-Evening
73°F 23°C
Overcast
Comfortable with temperatures reaching 73°F 23°C, cloudy in the morning, overcast in the afternoon, and partly cloudy this evening, with steady humidity and steady pressure. Winds switching from the NNW to the ENE at 7 mph 11 km/h.
Wednesday, September 16, 2026
Mid-Morning
52°F 11°C
Sunny
Mid-Afternoon
49°F 9°C
Overcast
Early-Evening
47°F 9°C
Overcast
Brisk around 49°F 9°C, cloudy in the morning, becoming overcast through the afternoon and evening, with lower humidity and barometric pressure rising. Winds moving from the N to the NW at 16 mph 27 km/h. Gusts up to 23 mph 37 km/h.
Thursday, September 17, 2026
Mid-Morning
45°F 7°C
Overcast
Mid-Afternoon
56°F 13°C
Overcast
Early-Evening
56°F 13°C
Overcast
Cool and brisk at 56°F 13°C, overcast through the afternoon, turning cloudy this evening, with lower humidity and steady pressure. Winds swinging from the NW to the WNW at 5 mph 8 km/h.
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