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.

Mostly Cloudy

84°F

29°C

Humidity 58%
Wind Speed S 9 mph
Barometer 29.96 in
Dewpoint 68°F (20°C)
Visibility 9.00 mi
Heat Index87°F (31°C)
Last update 16 Oct 1:55 pm EDT
Extended Forecast for

Harleyville SC

  • This Afternoon

    This Afternoon: Sunny, with a high near 88. Southwest wind around 8 mph.

    High: 88 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 60. Southwest wind 5 to 7 mph becoming northwest after midnight.

    Low: 60 °F

    Partly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 67. North wind 14 to 18 mph, with gusts as high as 31 mph.

    High: 67 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 45. Northeast wind 11 to 15 mph, with gusts as high as 29 mph.

    Low: 45 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 64. Northeast wind around 16 mph, with gusts as high as 28 mph.

    High: 64 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 88. Southwest wind around 8 mph.
Tonight
Partly cloudy, with a low around 60. Southwest wind 5 to 7 mph becoming northwest after midnight.
Saturday
A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 67. North wind 14 to 18 mph, with gusts as high as 31 mph.
Saturday Night
Mostly clear, with a low around 45. Northeast wind 11 to 15 mph, with gusts as high as 29 mph.
Sunday
Sunny, with a high near 64. Northeast wind around 16 mph, with gusts as high as 28 mph.
Sunday Night
Mostly clear, with a low around 47.
Monday
Sunny, with a high near 68.
Monday Night
Mostly clear, with a low around 50.
Tuesday
Sunny, with a high near 74.
Tuesday Night
Mostly clear, with a low around 50.
Wednesday
Sunny, with a high near 74.
Wednesday Night
Mostly clear, with a low around 51.
Thursday
Sunny, with a high near 74.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Harleyville SC
 33.2°N 80.44°W (Elev. 85 ft)
Last Update:
8:32 am EDT Oct 16, 2026
Forecast Valid:
2pm EDT Oct 16, 2026-6pm EDT Oct 22, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation