National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Summerville Airport (KDYB)

Lat: 33.06°NLon: 80.28°WElev: 56ft.

Fair

86°F

30°C

Humidity 49%
Wind Speed Calm
Barometer 30.03 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 14 Oct 5:15 pm EDT
Extended Forecast for

Dorchester SC

  • Tonight

    Tonight: Clear, with a low around 60. Light southwest wind.

    Low: 60 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 88. Calm wind.

    High: 88 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 63. Light south wind.

    Low: 63 °F

    Mostly Clear

  • Friday

    Friday: Mostly cloudy through mid morning, then gradual clearing, with a high near 86. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 86 °F

    Becoming
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 62. South wind 5 to 8 mph becoming west after midnight.

    Low: 62 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers before 2am. Mostly clear, with a low around 47.

    Low: 47 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 60. Light southwest wind.
Thursday
Sunny, with a high near 88. Calm wind.
Thursday Night
Mostly clear, with a low around 63. Light south wind.
Friday
Mostly cloudy through mid morning, then gradual clearing, with a high near 86. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 62. South wind 5 to 8 mph becoming west after midnight.
Saturday
Mostly sunny, with a high near 69.
Saturday Night
A 20 percent chance of showers before 2am. Mostly clear, with a low around 47.
Sunday
Sunny, with a high near 65.
Sunday Night
Mostly clear, with a low around 51.
Monday
Mostly sunny, with a high near 73.
Monday Night
Mostly clear, with a low around 55.
Tuesday
Sunny, with a high near 76.
Tuesday Night
Partly cloudy, with a low around 55.
Wednesday
Sunny, with a high near 76.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Dorchester SC
 33.13°N 80.4°W (Elev. 98 ft)
Last Update:
2:35 pm EDT Oct 14, 2026
Forecast Valid:
5pm EDT Oct 14, 2026-6pm EDT Oct 21, 2026
 
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Additional Resources

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National Digital Forecast Database Weather Element Forecast

Chance of Precipitation