Sumter, SC 14 Day Weather - 29051 WeatherWorld.com
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Sumter, SC Weather Forecast


Sumter, SC Weather Forecast Dated: 503 PM Mon Sep 07 2026
Expect a hot stretch with a mix of sun and clouds and frequent chances of rain over the coming period. moderate humidity and no major pressure swings will dominate. Isolated storms at times.
Monday, September 7, 2026
Mid-Morning
74°F 23°C
Sunny
Mid-Afternoon
92°F 33°C
Sunny
Early-Evening
84°F 29°C
Sunny
Very hot with temperatures reaching 92°F 33°C, sunny throughout the day, with lower humidity and steady pressure. Winds turning from the ENE to the SE at 9 mph 15 km/h.
Tuesday, September 8, 2026
Mid-Morning
74°F 23°C
Sunny
Mid-Afternoon
89°F 32°C
Overcast
Early-Evening
82°F 28°C
Overcast
Balmy with temperatures reaching 89°F 32°C, sunny in the morning, overcast in the afternoon, and cloudy this evening, with lower humidity and steady pressure. Winds switching from the ENE to the E at 8 mph 13 km/h.
Wednesday, September 9, 2026
Mid-Morning
73°F 23°C
Overcast
Mid-Afternoon
86°F 30°C
Sunny
Early-Evening
80°F 27°C
Sunny
Quite warm around 86°F 30°C, overcast in the morning, becoming sunny through the afternoon and evening, with lower humidity and barometric pressure falling.
Thursday, September 10, 2026
Mid-Morning
76°F 25°C
Cloudy
Mid-Afternoon
91°F 33°C
Overcast
Early-Evening
85°F 29°C
Cloudy
Sizzling hot near 91°F 33°C with a heat index reaching 94°F 34°C, cloudy in the morning, becoming overcast through the afternoon and evening, with lower humidity and barometric pressure falling.
Friday, September 11, 2026
Mid-Morning
76°F 25°C
Sunny
Mid-Afternoon
88°F 31°C
Overcast
Early-Evening
82°F 28°C
Sunny
Quite warm reaching 88°F 31°C, feeling like 93°F 34°C during peak afternoon, sunny in the morning, overcast in the afternoon, and partly cloudy this evening, with steady humidity and steady pressure. Winds moving from the NE to the SE at 10 mph 16 km/h.
Saturday, September 12, 2026
Mid-Morning
78°F 26°C
Sunny
Mid-Afternoon
92°F 33°C
Light Showers
Early-Evening
81°F 27°C
Overcast
Very hot with a high of 92°F 33°C, feeling closer to 97°F 36°C in the humidity, dry early, with showers developing in the afternoon, with steady humidity and steady pressure. A stray shower or storm late in the day.
Sunday, September 13, 2026
Mid-Morning
79°F 26°C
Sunny
Mid-Afternoon
93°F 34°C
Overcast
Early-Evening
84°F 29°C
Overcast
Sizzling hot near 93°F 34°C with a heat index reaching 101°F 38°C, sunny in the morning, becoming overcast through the afternoon and evening, with steady humidity and steady pressure.
Monday, September 14, 2026
Mid-Morning
78°F 26°C
Overcast
Mid-Afternoon
92°F 33°C
Overcast
Early-Evening
89°F 32°C
Light Showers
Hot and sweltering around 92°F 33°C (heat index 98°F 37°C), mainly dry until evening showers arrive, with lower humidity and steady pressure. Thunderstorms possible in the afternoon and evening.
Tuesday, September 15, 2026
Mid-Morning
83°F 29°C
Sunny
Mid-Afternoon
97°F 36°C
Overcast
Early-Evening
88°F 31°C
Overcast
Very hot with a high of 97°F 36°C, feeling closer to 102°F 39°C in the humidity, sunny in the morning, becoming overcast through the afternoon and evening, with steady humidity and steady pressure.
Wednesday, September 16, 2026
Mid-Morning
84°F 29°C
Sunny
Mid-Afternoon
98°F 37°C
Partly Cloudy
Early-Evening
76°F 25°C
Light Showers
Sizzling hot near 98°F 37°C with a heat index reaching 102°F 39°C, drier conditions through late afternoon before showers move in, with increasing humidity and steady pressure. Winds swinging from the WSW to the NE at 12 mph 19 km/h. Gusts up to 20 mph 32 km/h.
Thursday, September 17, 2026
Mid-Morning
64°F 18°C
Scattered Showers
Mid-Afternoon
70°F 21°C
Overcast
Early-Evening
68°F 20°C
Scattered Showers
Pleasant near 70°F 21°C, scattered downpours possible, with lower humidity and steady pressure. Winds shifting from the NE to the NNE at 7 mph 11 km/h.
Friday, September 18, 2026
Mid-Morning
67°F 20°C
Overcast
Mid-Afternoon
81°F 27°C
Overcast
Early-Evening
76°F 25°C
Overcast
Balmy with temperatures reaching 81°F 27°C, overcast throughout the day, with lower humidity and barometric pressure falling. Winds NE at 7 mph 12 km/h.
Saturday, September 19, 2026
Mid-Morning
70°F 21°C
Sunny
Mid-Afternoon
85°F 29°C
Sunny
Early-Evening
79°F 26°C
Overcast
Quite warm around 85°F 29°C, sunny through the afternoon, turning cloudy this evening, with lower humidity and steady pressure. Winds switching from the NNE to the NE at 4 mph 6 km/h.
Sunday, September 20, 2026
Mid-Morning
71°F 22°C
Overcast
Mid-Afternoon
87°F 30°C
Overcast
Early-Evening
81°F 27°C
Overcast
Warm temperatures up to 87°F 30°C, overcast throughout the day, with lower humidity and steady pressure.
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