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Sumter County SC Weather - Clear - 62°F
Clear
62°F
Updated 4:43 am
Feels Like 63°F
Humidity 87%
Wind NNE 3 mph
Barometer  30.06 in
Dew Point 59°F
Sumter County SC Weather - Clear - 17°C
Clear
17°C
Updated 4:43 am
Feels Like 17°C
Humidity 87%
Wind NNE 5 km/h
Barometer  101.7 kPa
Dew Point 15°C
Sumter County, SC Weather and Current Conditionssumter county sc weather forecast

Sumter County, SC Weather Forecast

Sumter County South Carolina WeatherSumter County, South Carolina Weather Weather Forecast
14 day API weather forecast for Sumter County, South Carolina. Note: The 7-day weather forecast for Sumter County, SC is the most reliable and accurate weather forecast. This model should only be used as a likely scenario. It is difficult to predict weather more than 7 days ahead.
Sumter County, SC Weather Forecast Dated: 443 AM Fri Oct 09 2026
Expect a mild stretch with more clouds than sun and frequent chances of rain over the coming period. generally humid conditions and no major pressure swings will dominate.

Friday, October 9, 2026

Mid-Morning
Sumter County Weather - 2026-10-09 - Morning - Overcast
68°F 20°C
Overcast
Mid-Afternoon
Sumter County Weather - 2026-10-09 - Afternoon - Overcast
78°F 26°C
Overcast
Early-Evening
Sumter County Weather - 2026-10-09 - Evening - Overcast
75°F 24°C
Overcast
Pleasant near 78°F 26°C, overcast throughout the day, with steady humidity and steady pressure. Winds turning from the NE to the ENE at 10 mph 17 km/h. Gusts up to 22 mph 35 km/h.

Saturday, October 10, 2026

Mid-Morning
Sumter County Weather - 2026-10-10 - Morning - Light Showers
67°F 19°C
Light Showers
Mid-Afternoon
Sumter County Weather - 2026-10-10 - Afternoon - Light Showers
70°F 21°C
Light Showers
Early-Evening
Sumter County Weather - 2026-10-10 - Evening - Light Showers
72°F 22°C
Light Showers
Comfortable with temperatures reaching 70°F 21°C, persistent showers off and on through the day, with steady humidity and steady pressure. Winds blowing from the ENE at 15 mph 24 km/h. Gusts up to 23 mph 37 km/h.

Sunday, October 11, 2026

Mid-Morning
Sumter County Weather - 2026-10-11 - Morning - Light Showers
75°F 24°C
Light Showers
Mid-Afternoon
Sumter County Weather - 2026-10-11 - Afternoon - Scattered Showers
75°F 24°C
Scattered Showers
Early-Evening
Sumter County Weather - 2026-10-11 - Evening - Overcast
77°F 25°C
Overcast
Enjoyable around 75°F 24°C, locally heavy downpours at times, with lower humidity and steady pressure. Winds moving from the SSW to the SW at 11 mph 18 km/h. Gusts up to 22 mph 34 km/h.

Monday, October 12, 2026

Mid-Morning
Sumter County Weather - 2026-10-12 - Morning - Sunny
67°F 20°C
Sunny
Mid-Afternoon
Sumter County Weather - 2026-10-12 - Afternoon - Partly Cloudy
84°F 29°C
Partly Cloudy
Early-Evening
Sumter County Weather - 2026-10-12 - Evening - Overcast
77°F 25°C
Overcast
Warm temperatures up to 84°F 29°C, sunny in the morning, partly cloudy in the afternoon, and overcast this evening, with lower humidity and steady pressure. Winds swinging from the WNW to the N at 7 mph 11 km/h.

Tuesday, October 13, 2026

Mid-Morning
Sumter County Weather - 2026-10-13 - Morning - Sunny
69°F 20°C
Sunny
Mid-Afternoon
Sumter County Weather - 2026-10-13 - Afternoon - Sunny
87°F 31°C
Sunny
Early-Evening
Sumter County Weather - 2026-10-13 - Evening - Sunny
79°F 26°C
Sunny
Very warm with a high of 87°F 31°C, sunny throughout the day, with lower humidity and steady pressure.

Wednesday, October 14, 2026

Mid-Morning
Sumter County Weather - 2026-10-14 - Morning - Sunny
74°F 23°C
Sunny
Mid-Afternoon
Sumter County Weather - 2026-10-14 - Afternoon - Sunny
90°F 32°C
Sunny
Early-Evening
Sumter County Weather - 2026-10-14 - Evening - Sunny
82°F 28°C
Sunny
Very hot with temperatures reaching 90°F 32°C, sunny throughout the day, with lower humidity and steady pressure.

Thursday, October 15, 2026

Mid-Morning
Sumter County Weather - 2026-10-15 - Morning - Scattered Showers
71°F 22°C
Scattered Showers
Mid-Afternoon
Sumter County Weather - 2026-10-15 - Afternoon - Overcast
79°F 26°C
Overcast
Early-Evening
Sumter County Weather - 2026-10-15 - Evening - Overcast
75°F 24°C
Overcast
Comfortable with temperatures reaching 79°F 26°C, periods of heavy rain and gusty conditions, with lower humidity and steady pressure. Winds shifting from the ENE to the SE at 9 mph 14 km/h.

Friday, October 16, 2026

Mid-Morning
Sumter County Weather - 2026-10-16 - Morning - Sunny
69°F 21°C
Sunny
Mid-Afternoon
Sumter County Weather - 2026-10-16 - Afternoon - Overcast
83°F 28°C
Overcast
Early-Evening
Sumter County Weather - 2026-10-16 - Evening - Cloudy
77°F 25°C
Cloudy
Quite warm around 83°F 28°C, sunny in the morning, becoming cloudy through the afternoon and evening, with steady humidity and steady pressure. Winds turning from the SE to the SSE at 8 mph 12 km/h.

Saturday, October 17, 2026

Mid-Morning
Sumter County Weather - 2026-10-17 - Morning - Overcast
73°F 23°C
Overcast
Mid-Afternoon
Sumter County Weather - 2026-10-17 - Afternoon - Overcast
84°F 29°C
Overcast
Early-Evening
Sumter County Weather - 2026-10-17 - Evening - Light Rain
75°F 24°C
Light Rain
Warm temperatures up to 84°F 29°C, dry most of the day, with showers developing late, with steady humidity and barometric pressure falling.

Sunday, October 18, 2026

Mid-Morning
Sumter County Weather - 2026-10-18 - Morning - Overcast
54°F 12°C
Overcast
Mid-Afternoon
Sumter County Weather - 2026-10-18 - Afternoon - Scattered Showers
56°F 13°C
Scattered Showers
Early-Evening
Sumter County Weather - 2026-10-18 - Evening - Scattered Showers
55°F 13°C
Scattered Showers
Cool and brisk at 56°F 13°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds out of the NE at 15 mph 24 km/h. Gusts up to 28 mph 45 km/h.

Monday, October 19, 2026

Mid-Morning
Sumter County Weather - 2026-10-19 - Morning - Drizzle
55°F 13°C
Drizzle
Mid-Afternoon
Sumter County Weather - 2026-10-19 - Afternoon - Drizzle
57°F 14°C
Drizzle
Early-Evening
Sumter County Weather - 2026-10-19 - Evening - Drizzle
57°F 14°C
Drizzle
Chilly near 57°F 14°C, persistent showers off and on through the day, with increasing humidity and steady pressure. Winds blowing from the NNE at 15 mph 25 km/h. Gusts up to 34 mph 54 km/h.

Tuesday, October 20, 2026

Mid-Morning
Sumter County Weather - 2026-10-20 - Morning - Rain
52°F 11°C
Rain
Mid-Afternoon
Sumter County Weather - 2026-10-20 - Afternoon - Light Rain
53°F 12°C
Light Rain
Early-Evening
Sumter County Weather - 2026-10-20 - Evening - Scattered Showers
55°F 13°C
Scattered Showers
Crisp with a high near 53°F 12°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds N at 16 mph 26 km/h. Gusts up to 36 mph 58 km/h.

Wednesday, October 21, 2026

Mid-Morning
Sumter County Weather - 2026-10-21 - Morning - Overcast
56°F 13°C
Overcast
Mid-Afternoon
Sumter County Weather - 2026-10-21 - Afternoon - Scattered Showers
57°F 14°C
Scattered Showers
Early-Evening
Sumter County Weather - 2026-10-21 - Evening - Scattered Showers
56°F 14°C
Scattered Showers
Brisk around 57°F 14°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds out of the NNE at 15 mph 24 km/h. Gusts up to 34 mph 54 km/h.

Thursday, October 22, 2026

Mid-Morning
Sumter County Weather - 2026-10-22 - Morning - Scattered Showers
58°F 14°C
Scattered Showers
Mid-Afternoon
Sumter County Weather - 2026-10-22 - Afternoon - Overcast
59°F 15°C
Overcast
Early-Evening
Sumter County Weather - 2026-10-22 - Evening - Scattered Showers
59°F 15°C
Scattered Showers
Mildly cool near 59°F 15°C, scattered downpours possible, with steady humidity and steady pressure. Winds blowing from the NNE at 13 mph 21 km/h. Gusts up to 29 mph 45 km/h.

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Weather by the Numbers

Fri, 9th
Sumter County SC Weather - Friday, Oct 9, 2026 - Overcast
Hi: 79°F 26°C
Lo: 65°F 19°C
Sunrise 07:21 AM
Sunset 06:54 PM
Wind NE 12 mph19 km/h
Dew Point 54°F12°C
uv Index 2
Barometric Pressure 30.12 in1020 mb
POP 10% *
Humidity 44%
Sat, 10th
Sumter County SC Weather - Saturday, Oct 10, 2026 - Light Rain
Hi: 72°F 22°C
Lo: 66°F 19°C
Sunrise 07:22 AM
Sunset 06:53 PM
Wind E 17 mph28 km/h
Dew Point 66°F19°C
uv Index 0
Barometric Pressure 30.15 in1021 mb
POP 69% *
Humidity 92%
Sun, 11th
Sumter County SC Weather - Sunday, Oct 11, 2026 - Patchy Rain Nearby
Hi: 83°F 29°C
Lo: 71°F 22°C
Sunrise 07:23 AM
Sunset 06:52 PM
Wind SSW 15 mph25 km/h
Dew Point 71°F22°C
uv Index 5
Barometric Pressure 30 in1016 mb
POP 21% *
Humidity 71%
Mon, 12th
Sumter County SC Weather - Monday, Oct 12, 2026 - Sunny
Hi: 84°F 29°C
Lo: 63°F 17°C
Sunrise 07:24 AM
Sunset 06:50 PM
Wind NW 10 mph16 km/h
Dew Point 59°F15°C
uv Index 5
Barometric Pressure 29.97 in1015 mb
POP 2% *
Humidity 51%
Tue, 13th
Sumter County SC Weather - Tuesday, Oct 13, 2026 - Sunny
Hi: 87°F 31°C
Lo: 63°F 17°C
Sunrise 07:25 AM
Sunset 06:49 PM
Wind NW 4 mph7 km/h
Dew Point 58°F14°C
uv Index 7
Barometric Pressure 30 in1016 mb
POP 1% *
Humidity 46%
Wed, 14th
Sumter County SC Weather - Wednesday, Oct 14, 2026 - Sunny
Hi: 90°F 32°C
Lo: 69°F 21°C
Sunrise 07:25 AM
Sunset 06:48 PM
Wind WSW 4 mph7 km/h
Dew Point 61°F16°C
uv Index 8
Barometric Pressure 29.94 in1014 mb
POP 1% *
Humidity 43%
Thu, 15th
Sumter County SC Weather - Thursday, Oct 15, 2026 - Patchy Rain Nearby
Hi: 80°F 27°C
Lo: 68°F 20°C
Sunrise 07:26 AM
Sunset 06:47 PM
Wind E 9 mph14 km/h
Dew Point 67°F19°C
uv Index 6
Barometric Pressure 30.15 in1021 mb
POP 17% *
Humidity 69%
Fri, 16th
Sumter County SC Weather - Friday, Oct 16, 2026 - Partly Cloudy
Hi: 83°F 29°C
Lo: 65°F 18°C
Sunrise 07:27 AM
Sunset 06:45 PM
Wind SSE 5 mph9 km/h
Dew Point 62°F17°C
uv Index 7
Barometric Pressure 30.15 in1021 mb
POP 4% *
Humidity 57%
Sat, 17th
Sumter County SC Weather - Saturday, Oct 17, 2026 - Overcast
Hi: 85°F 30°C
Lo: 69°F 21°C
Sunrise 07:28 AM
Sunset 06:44 PM
Wind SSE 4 mph7 km/h
Dew Point 63°F17°C
uv Index 6
Barometric Pressure 30 in1016 mb
POP 13% *
Humidity 56%
Sun, 18th
Sumter County SC Weather - Sunday, Oct 18, 2026 - Overcast
Hi: 68°F 20°C
Lo: 54°F 12°C
Sunrise 07:29 AM
Sunset 06:43 PM
Wind NE 16 mph25 km/h
Dew Point 48°F9°C
uv Index 3
Barometric Pressure 30.09 in1019 mb
POP 22% *
Humidity 78%
Mon, 19th
Sumter County SC Weather - Monday, Oct 19, 2026 - Patchy Rain Nearby
Hi: 58°F 15°C
Lo: 54°F 12°C
Sunrise 07:29 AM
Sunset 06:42 PM
Wind NE 16 mph26 km/h
Dew Point 50°F10°C
uv Index 3
Barometric Pressure 30.15 in1021 mb
POP 38% *
Humidity 75%
Tue, 20th
Sumter County SC Weather - Tuesday, Oct 20, 2026 - Light Rain
Hi: 55°F 13°C
Lo: 51°F 11°C
Sunrise 07:30 AM
Sunset 06:41 PM
Wind NNE 16 mph26 km/h
Dew Point 50°F10°C
uv Index 3
Barometric Pressure 30.15 in1021 mb
POP 85% *
Humidity 94%
Wed, 21st
Sumter County SC Weather - Wednesday, Oct 21, 2026 - Patchy Rain Nearby
Hi: 57°F 14°C
Lo: 55°F 13°C
Sunrise 07:31 AM
Sunset 06:39 PM
Wind NNE 16 mph25 km/h
Dew Point 54°F12°C
uv Index 3
Barometric Pressure 30.18 in1022 mb
POP 30% *
Humidity 90%
Thu, 22nd
Sumter County SC Weather - Thursday, Oct 22, 2026 - Overcast
Hi: 59°F 15°C
Lo: 57°F 14°C
Sunrise 07:32 AM
Sunset 06:38 PM
Wind NNE 14 mph22 km/h
Dew Point 56°F13°C
uv Index 3
Barometric Pressure 30.09 in1019 mb
POP 31% *
Humidity 92%
* POP = Probability of Precipitation. Data for 12:00 PM.