Summerville, SC Weather Forecast & Alerts

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

1 Currently Active Alert for Summerville

Current Conditions — Summerville, SC

SUMMERVILLE (KDYB)

Mostly Cloudy

69.8 F
Humidity:49%
Wind Speed: 5.8 mph
Barometer:30.10 in
Dewpoint:50.0 F
Visibility:10.00 mi
Precip:--
Heat Index:NA
Wind Chill:NA
Apr 22 2026, 08:35 PM EDT
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5-Day Forecast — Summerville, SC

Wednesday

High 82 °F
Mostly Sunny
Wednesday
Night
Low 57 °F
Clear
Thursday

High 87 °F
Mostly Sunny
Thursday
Night
Low 59 °F
Mostly Clear
Friday

High 86 °F
Mostly Sunny
Friday
Night
Low 62 °F
Mostly Clear
Saturday

High 89 °F
Chance of Scattered T-storms
Saturday
Night
Low 62 °F
Chance of T-storms
Sunday

High 82 °F
Chance of T-storms

Detailed Forecast — Summerville, SC

Wednesday
Mostly Sunny. High near 82°F. Wind 6 to 7 mph, with gusts as high as 13 mph.
Wednesday Night
Clear. Low around 57°F. Wind 3 to 6 mph, with gusts as high as 12 mph.
Thursday
Mostly Sunny. High near 87°F. Wind 3 to 7 mph, with gusts as high as 13 mph.
Thursday Night
Mostly Clear. Low around 59°F. Wind 3 to 6 mph, with gusts as high as 13 mph.
Friday
Mostly Sunny. High near 86°F. Wind 3 to 7 mph, with gusts as high as 14 mph.
Friday Night
Mostly Clear. Low around 62°F. Wind 5 to 6 mph, with gusts as high as 13 mph.
Saturday
Chance of Scattered Thunderstorms. High near 89°F. Wind 3 to 7 mph, with gusts as high as 14 mph.
Saturday Night
Chance of Thunderstorms. Low around 62°F. Wind 3 to 6 mph, with gusts as high as 12 mph.
Sunday
Chance of Thunderstorms. High near 82°F. Wind 3 to 6 mph, with gusts as high as 13 mph.
Sunday Night
Chance of Showers. Low around 57°F. Wind around 5 mph, with gusts as high as 9 mph.
Monday
Isolated T-storm. High near 78°F. Wind around 6 mph, with gusts as high as 13 mph.
Monday Night
Slight Chance of Rain. Low around 62°F. Wind 3 to 5 mph, with gusts as high as 10 mph.
Tuesday
Chance of Thunderstorms. High near 84°F. Wind 5 to 9 mph, with gusts as high as 17 mph.
SC Radar
Current Radar • SC
Day 1 Outlook • April 23, 2026

Observation History — Summerville, 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)
08:35 PM EDT 5.8 10.00 Mostly Cloudy -- 69.8 50.0 49% NA NA 30.10 1019.3
08:15 PM EDT 0.0 10.00 Mostly Clear -- 71.6 50.0 46% NA 70.7 30.09 1019.0
07:55 PM EDT S 3.4 10.00 Clear -- 73.4 50.0 44% NA 72.5 30.09 1019.0
07:35 PM EDT 4.7 G 15.0 10.00 Clear -- 75.2 50.0 41% NA 74.3 30.09 1019.0
07:15 PM EDT 0.0 10.00 Clear -- 75.2 50.0 41% NA 74.3 30.09 1019.0
06:55 PM EDT S 8.1 10.00 Clear -- 77.0 48.2 36% NA 76.1 30.09 1019.0
06:35 PM EDT S 8.1 10.00 Clear -- 78.8 48.2 34% NA 77.9 30.09 1019.0
06:15 PM EDT 6.9 10.00 Clear -- 78.8 48.2 34% NA 77.9 30.09 1019.0
05:55 PM EDT 5.8 10.00 Clear -- 80.6 46.4 30% NA 79.7 30.09 1019.0
05:35 PM EDT SW 8.1 10.00 Clear -- 80.6 46.4 30% NA 79.7 30.09 1019.0
05:15 PM EDT 6.9 G 12.8 10.00 Clear -- 80.6 46.4 30% NA 79.7 30.09 1019.0
04:55 PM EDT 6.9 G 12.8 10.00 Clear -- 80.6 46.4 30% NA 79.7 30.09 1019.0
04:35 PM EDT 6.9 10.00 Clear -- 80.6 48.2 32% NA 79.9 30.10 1019.3
04:15 PM EDT 3.4 10.00 Clear -- 80.6 46.4 30% NA 79.7 30.10 1019.3
03:55 PM EDT 6.9 10.00 Clear -- 80.6 46.4 30% NA 79.7 30.12 1020.0
03:35 PM EDT 5.8 10.00 NULL -- 80.6 46.4 30% NA 79.7 30.13 1020.3
03:15 PM EDT 4.7 G 13.9 10.00 Clear -- 80.6 46.4 30% NA 79.7 30.14 1020.7
02:55 PM EDT 0.0 10.00 Clear -- 80.6 46.4 30% NA 79.7 30.15 1021.0
02:35 PM EDT 5.8 10.00 Clear -- 80.6 46.4 30% NA 79.7 30.16 1021.3
02:15 PM EDT S 8.1 10.00 Clear -- 78.8 46.4 32% NA 77.9 30.17 1021.7
01:55 PM EDT 5.8 10.00 Clear -- 78.8 48.2 34% NA 77.9 30.18 1022.0
01:35 PM EDT W 5.8 10.00 Clear -- 78.8 48.2 34% NA 77.9 30.19 1022.4
01:15 PM EDT 0.0 10.00 Clear -- 77.0 50.0 39% NA 76.3 30.20 1022.7
12:35 PM EDT 4.7 10.00 Clear -- 75.2 51.8 44% NA 74.5 30.22 1023.4

Regional Weather Observation

SUMMERVILLE (KDYB)

Mostly Cloudy
69.8 F

BERKELEY MONCKS (KMKS)

Clear
69.8 F

CHARLESTON (KCHS)

Clear
66.2 F

MANNING (KMNI)

Clear
71.6 F

MOUNT PLEASANT (KLRO)

Clear
68.0 F

CHARLESTON/EXEC (KJZI)

NULL
66.2 F
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