South Carolina · NWS CHS office

Summerville, SC weather

It is 46°F and cloudy at Summerville Airport as of Oct 28, 4:55 AM EDT. Overnight: Clear, low near 51°F. Forecast from the National Weather Service, issued Oct 28, 2:35 AM EDT.

Updated Oct 28, 5:20 AM EDT (snapshot)

Current conditions

Temperature

46°F

Cloudy

Wind

Calm

Humidity 100% · dew point 46°F

Pressure · visibility

30.21 inHg

Visibility 10 mi

Observed at Summerville Airport (KDYB), Oct 28, 4:55 AM EDT. Station readings can lag or be missing.

Alerts for this area

No active NWS alerts cover the Summerville forecast zone right now.

Around the NWS CHS forecast area

4 active alerts cover zones served by the CHS office near Summerville:

  • Rip Current Statement (2)
  • Coastal Flood Advisory (2)

From the alert snapshot of Oct 28, 2026, 5:12 AM EDT. South Carolina has 7 active alerts: see them all.

For official warnings, check weather.gov and your local authorities. OpenForecast repeats National Weather Service alerts and may be delayed or incomplete. Follow instructions from emergency officials.

Next 24 hours

Hourly forecast for Summerville (local time)
TimeTempForecastPrecip. chanceWind
Wed 5 AM51°FClear0%NE 7 mph
Wed 6 AM52°FSunny0%NE 7 mph
Wed 7 AM53°FMostly Sunny0%NE 7 mph
Wed 8 AM53°FMostly Sunny0%N 8 mph
Wed 9 AM58°FMostly Sunny0%N 8 mph
Wed 10 AM63°FMostly Sunny0%NE 9 mph
Wed 11 AM67°FPartly Sunny0%NE 9 mph
Wed 12 PM71°FPartly Sunny0%NE 10 mph
Wed 1 PM73°FMostly Cloudy0%NE 10 mph
Wed 2 PM76°FPartly Sunny0%NE 10 mph
Wed 3 PM76°FPartly Sunny0%NE 12 mph
Wed 4 PM77°FPartly Sunny0%NE 12 mph
Wed 5 PM77°FPartly Sunny0%NE 10 mph
Wed 6 PM75°FMostly Cloudy0%NE 8 mph
Wed 7 PM72°FMostly Cloudy0%NE 7 mph
Wed 8 PM70°FMostly Cloudy0%NE 7 mph
Wed 9 PM66°FMostly Cloudy0%NE 6 mph
Wed 10 PM65°FMostly Cloudy0%NE 7 mph
Wed 11 PM64°FMostly Cloudy0%NE 7 mph
Thu 12 AM63°FPartly Cloudy0%NE 7 mph
Thu 1 AM63°FPartly Cloudy0%NE 7 mph
Thu 2 AM63°FMostly Cloudy0%NE 7 mph
Thu 3 AM62°FMostly Cloudy0%NE 7 mph
Thu 4 AM62°FMostly Cloudy0%NE 7 mph

Hourly values come from the NWS gridded forecast for the 2.5 km grid square that covers the city's center point. Conditions elsewhere in Summerville can differ.

7-day forecast

Overnight

Low 51°F

Clear, with a low around 51. Northeast wind around 7 mph.

Wednesday

High 78°F·Low 60°F

Mostly sunny, with a high near 78. Northeast wind 7 to 12 mph, with gusts as high as 22 mph.

Wednesday Night: Mostly cloudy, with a low around 60. Northeast wind around 8 mph.

Thursday

High 79°F·Low 58°F

Partly sunny, with a high near 79. Northeast wind 6 to 9 mph.

Thursday Night: Mostly clear, with a low around 58. Northeast wind around 5 mph.

Friday

High 80°F·Low 59°F

Sunny, with a high near 80.

Friday Night: Partly cloudy, with a low around 59.

Saturday

High 77°F·Low 61°F

Mostly cloudy, with a high near 77.

Saturday Night: A slight chance of rain showers after 1am. Mostly cloudy, with a low around 61. Chance of precipitation is 20%.

Sunday

High 75°F·Low 62°F

A chance of rain showers. Mostly cloudy, with a high near 75. Chance of precipitation is 40%.

Sunday Night: A chance of rain showers before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 50%.

Monday

High 77°F·Low 61°F

A chance of rain showers. Mostly cloudy, with a high near 77. Chance of precipitation is 50%.

Monday Night: A chance of rain showers before 7pm. Mostly cloudy, with a low around 61. Chance of precipitation is 30%.

Tuesday

High 80°F

Mostly sunny, with a high near 80.

Nearby cities

Larger cities in the area

See every city we cover in South Carolina, or check all active alerts.

About this forecast

Forecast office
Summerville is served by the National Weather Service CHS forecast office, forecast zone SCZ044, county zone SCC035.
Location used
The Census Bureau's internal point for Summerville (33.0058, -80.1793), in Dorchester County. Population: 52,625 (2024 estimate), number 7 of the 27 South Carolina cities on this site.
Radar
Nearest NWS radar: KCLX. View it on radar.weather.gov.

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Sources

  • Forecast, hourly forecast, observations and alerts: National Weather Service API, api.weather.gov/points/33.0058,-80.1793 (forecast issued Oct 28, 2:35 AM EDT).
  • Official forecast page: forecast.weather.gov.
  • City location and population: U.S. Census Bureau, Vintage 2024 population estimates and 2024 Gazetteer files.
  • Snapshot taken Oct 28, 2026. The NWS and Census Bureau do not endorse OpenForecast.

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