Summerton, SC Weather Forecast & Alerts

Current conditions, 5-day forecast, and active NWS weather alerts for Summerton, SC.

1 Currently Active Alert for Summerton

Current Conditions — Summerton, SC

SHAW AFB/SUMTER (KSSC)

Clear

71.1 F
Humidity:41%
Wind Speed:S 3.4 mph
Barometer:30.06 in
Dewpoint:46.2 F
Visibility:10.00 mi
Precip:--
Heat Index:69.8 F
Wind Chill:NA
Apr 22 2026, 08:55 PM EDT
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5-Day Forecast — Summerton, SC

Wednesday

High 84 °F
Smoke
Wednesday
Night
Low 55 °F
Mostly Clear
Thursday

High 87 °F
Smoke
Thursday
Night
Low 57 °F
Partly Cloudy
Friday

High 87 °F
Partly Sunny
Friday
Night
Low 59 °F
Partly Cloudy
Saturday

High 89 °F
Chance of T-storms
Saturday
Night
Low 60 °F
Chance of T-storms
Sunday

High 82 °F
Chance of T-storms

Detailed Forecast — Summerton, SC

Wednesday
Smoke. High near 84°F. Wind 3 to 6 mph, with gusts as high as 15 mph.
Wednesday Night
Mostly Clear. Low around 55°F. Wind 2 to 3 mph, with gusts as high as 12 mph.
Thursday
Smoke. High near 87°F. Wind 2 to 3 mph, with gusts as high as 12 mph.
Thursday Night
Partly Cloudy. Low around 57°F. Wind 2 to 3 mph, with gusts as high as 13 mph.
Friday
Partly Sunny. High near 87°F. Wind 2 to 6 mph, with gusts as high as 15 mph.
Friday Night
Partly Cloudy. Low around 59°F. Wind 2 to 3 mph, with gusts as high as 13 mph.
Saturday
Chance of Thunderstorms. High near 89°F. Wind 2 to 7 mph, with gusts as high as 14 mph.
Saturday Night
Chance of Thunderstorms. Low around 60°F. Wind 0 to 2 mph, with gusts as high as 12 mph.
Sunday
Chance of Thunderstorms. High near 82°F. Wind 1 to 5 mph, with gusts as high as 10 mph.
Sunday Night
Partly Cloudy. Low around 57°F. Wind 1 to 2 mph, with gusts as high as 12 mph.
Monday
Slight Chance of Rain Showers. High near 80°F. Wind 5 to 6 mph, with gusts as high as 14 mph.
Monday Night
Chance of Rain. Low around 59°F. Wind 1 to 2 mph, with gusts as high as 10 mph.
Tuesday
Chance of Thunderstorms. High near 86°F. Wind 2 to 7 mph, with gusts as high as 17 mph.
Tuesday Night
Chance of Scattered Thunderstorms. Low around 62°F. Wind 1 to 2 mph, with gusts as high as 10 mph.
SC Radar
Current Radar • SC
Day 1 Outlook • April 23, 2026

Observation History — Summerton, SC

Time Wind
(mph)		 Vis
(mi)		 Weather Precip (in) Temperature (F) Relative
Humidity		 Wind
Chill
(F)		 Heat
Index
(F)		 Pressure
Air Dwpt altimeter
(in)		 sea level
(mb)
08:55 PM EDT S 3.4 10.00 Clear -- 71.1 46.2 41% NA 69.8 30.06 1018.0
07:55 PM EDT S 9.2 10.00 Clear -- 77.4 44.4 31% NA 76.3 30.04 1017.3
06:55 PM EDT 9.2 10.00 Clear -- 81.3 % NA NA 30.04 1017.3
05:55 PM EDT 12.8 10.00 Clear -- 83.5 40.6 22% NA 81.0 30.05 1017.6
04:55 PM EDT S 8.1 10.00 Clear -- 83.5 42.8 24% NA 81.1 30.06 1018.0
03:55 PM EDT 6.9 G 18.3 10.00 Clear -- 82.2 % NA NA 30.08 1018.6
03:05 PM EDT 10.00 NULL -- 84.2 46.4 27% NA 81.9 30.12 1019.7
02:39 PM EDT SW 9.2 6.00 Haze and Smoke -- 82.4 46.4 28% NA 80.6 30.13 1020.3
01:55 PM EDT 11.4 G 18.3 10.00 Mostly Clear -- 80.6 46.2 30% NA 79.7 30.15 1021.0
12:55 PM EDT SW 13.9 10.00 Mostly Clear -- 78.8 48.0 34% NA 77.9 30.18 1022.0
11:55 AM EDT 11.4 10.00 NULL -- 74.8 48.2 39% NA 73.9 30.21 1023.0
10:55 AM EDT 10.3 10.00 Mostly Cloudy -- 72.5 50.5 46% NA 71.6 30.23 1023.7
09:55 AM EDT 12.8 10.00 Mostly Cloudy -- 67.6 56.7 68% NA NA 30.23 1023.7
08:55 AM EDT SW 6.9 10.00 Mostly Cloudy -- 62.1 55.0 78% NA NA 30.25 1024.1
07:55 AM EDT 3.4 9.00 Mostly Cloudy -- 55.0 52.2 90% NA NA 30.25 1024.1
06:55 AM EDT 0.0 10.00 Mostly Cloudy -- 53.8 50.5 89% NA NA 30.23 1023.7
05:55 AM EDT 0.0 10.00 Mostly Cloudy -- 50.9 48.0 90% NA NA 30.21 1023.0
04:55 AM EDT 0.0 10.00 Clear -- 52.7 48.6 86% NA NA 30.21 1023.0
03:55 AM EDT 0.0 10.00 Clear -- 53.8 48.7 83% NA NA 30.21 1023.0
02:55 AM EDT 0.0 10.00 Clear -- 55.4 49.6 81% NA NA 30.21 1023.0
01:55 AM EDT 0.0 10.00 Clear -- 55.2 48.6 78% NA NA 30.25 1024.1
12:55 AM EDT 0.0 10.00 Clear -- 55.9 47.5 73% NA NA 30.25 1024.4
11:55 PM EDT S 3.4 10.00 Clear -- 57.4 47.3 69% NA NA 30.25 1024.4
10:55 PM EDT S 3.4 10.00 Mostly Cloudy -- 58.5 45.9 63% NA NA 30.25 1024.4

Regional Weather Observation

SHAW AFB/SUMTER (KSSC)

Clear
71.1 F

MCENTIRE ANG BAS (KMMT)

Clear
72.7 F

MANNING (KMNI)

Clear
69.8 F

ORANGEBURG (KOGB)

Clear
66.2 F

SUMTER (KSMS)

Partly Cloudy
68.0 F

COLUMBIA-OWENS (KCUB)

Clear
68.0 F
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