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Summ, SC Weather Forecast
Summ, SC Weather Forecast Dated: 618 AM Mon Sep 07 2026
Expect a very warm period with more clouds than sun and occasional showers over the coming period. generally humid conditions and no major pressure swings will dominate. Isolated storms at times.
Monday, September 7, 2026
Mid-Morning
77°F 25°C
Scattered Showers
Mid-Afternoon
83°F 28°C
Scattered Showers
Early-Evening
76°F 25°C
Scattered Showers
Warm and summery around 83°F 28°C (feels like 87°F 30°C), periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds turning from the ENE to the NE at 8 mph 12 km/h.
Tuesday, September 8, 2026
Mid-Morning
76°F 25°C
Sunny
Mid-Afternoon
86°F 30°C
Scattered Showers
Early-Evening
80°F 27°C
Scattered Showers
Quite warm reaching 86°F 30°C, feeling like 89°F 32°C during peak afternoon, scattered downpours possible, with lower humidity and steady pressure. Winds switching from the NE to the ENE at 8 mph 12 km/h.
Wednesday, September 9, 2026
Mid-Morning
77°F 25°C
Sunny
Mid-Afternoon
92°F 33°C
Sunny
Early-Evening
82°F 28°C
Sunny
Sizzling hot with 92°F 33°C, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure. Winds moving from the ENE to the E at 8 mph 13 km/h.
Thursday, September 10, 2026
Mid-Morning
81°F 27°C
Cloudy
Mid-Afternoon
89°F 32°C
Light Showers
Early-Evening
81°F 27°C
Scattered Showers
Warm and summery around 89°F 32°C (feels like 96°F 35°C), periods of heavy rain and gusty conditions, with steady humidity and barometric pressure falling.
Friday, September 11, 2026
Mid-Morning
81°F 27°C
Scattered Showers
Mid-Afternoon
95°F 35°C
Partly Cloudy
Early-Evening
85°F 29°C
Sunny
Hot and sweltering around 95°F 35°C (heat index 99°F 37°C), scattered downpours possible, with steady humidity and steady pressure.
Saturday, September 12, 2026
Mid-Morning
82°F 28°C
Partly Cloudy
Mid-Afternoon
93°F 34°C
Overcast
Early-Evening
84°F 29°C
Overcast
Very hot with a high of 93°F 34°C, feeling closer to 99°F 37°C in the humidity, cloudy in the morning, becoming overcast through the afternoon and evening, with steady humidity and steady pressure.
Sunday, September 13, 2026
Mid-Morning
82°F 28°C
Cloudy
Mid-Afternoon
94°F 35°C
Nearby Thunderstorms
Early-Evening
84°F 29°C
Sunny
Sizzling hot near 94°F 35°C with a heat index reaching 101°F 38°C, periods of heavy thunderstorms, with steady humidity and steady pressure.
Monday, September 14, 2026
Mid-Morning
82°F 28°C
Sunny
Mid-Afternoon
94°F 35°C
Overcast
Early-Evening
83°F 29°C
Scattered Showers
Hot and sweltering around 94°F 35°C (heat index 101°F 38°C), scattered downpours possible, with steady humidity and barometric pressure falling.
Tuesday, September 15, 2026
Mid-Morning
79°F 26°C
Overcast
Mid-Afternoon
92°F 34°C
Scattered Showers
Early-Evening
81°F 28°C
Light Showers
Very hot with a high of 92°F 34°C, feeling closer to 97°F 36°C in the humidity, locally heavy downpours at times, with steady humidity and steady pressure.
Wednesday, September 16, 2026
Mid-Morning
67°F 19°C
Scattered Showers
Mid-Afternoon
74°F 23°C
Overcast
Early-Evening
75°F 24°C
Scattered Showers
Mild with a high of 74°F 23°C, periods of heavy rain and gusty conditions, with lower humidity and steady pressure. Winds out of the NE at 8 mph 12 km/h.
Thursday, September 17, 2026
Mid-Morning
71°F 22°C
Partly Cloudy
Mid-Afternoon
81°F 27°C
Overcast
Early-Evening
75°F 24°C
Overcast
Warm and summery near 81°F 27°C, overcast throughout the day, with lower humidity and steady pressure. Winds shifting from the NNE to the ENE at 8 mph 13 km/h. Gusts up to 20 mph 32 km/h.
Friday, September 18, 2026
Mid-Morning
70°F 21°C
Overcast
Mid-Afternoon
80°F 26°C
Overcast
Early-Evening
76°F 24°C
Overcast
Balmy with temperatures reaching 80°F 26°C, overcast throughout the day, with steady humidity and steady pressure. Winds turning from the NNE to the ENE at 6 mph 10 km/h.
Saturday, September 19, 2026
Mid-Morning
73°F 23°C
Overcast
Mid-Afternoon
85°F 30°C
Overcast
Early-Evening
80°F 27°C
Overcast
Quite warm around 85°F 30°C, overcast in the morning, cloudy in the afternoon, and overcast this evening, with lower humidity and steady pressure. Winds switching from the NNE to the E at 3 mph 6 km/h.
Sunday, September 20, 2026
Mid-Morning
74°F 23°C
Overcast
Mid-Afternoon
86°F 30°C
Cloudy
Early-Evening
80°F 27°C
Overcast
Warm temperatures up to 86°F 30°C, overcast throughout the day, with lower humidity and steady pressure.
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