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.

Overcast

64°F

18°C

Humidity 100%
Wind Speed Calm
Barometer 30.15 in
Dewpoint 64°F (18°C)
Visibility 8.00 mi
Last update 20 May 2:35 am EDT
Extended Forecast for

6 Miles SW Dorchester SC

  • Overnight

    Overnight: Patchy fog after 3am. Otherwise, mostly clear, with a low around 62. Calm wind.

    Low: 62 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 9am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 93. Calm wind becoming southeast 5 to 8 mph in the afternoon.

    High: 93 °F

    Patchy Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog after 5am. Otherwise, mostly clear, with a low around 66. South wind 5 to 8 mph becoming calm in the evening.

    Low: 66 °F

    Clear then
    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 7am. Otherwise, mostly sunny, with a high near 93. Calm wind becoming south around 5 mph in the afternoon.

    High: 93 °F

    Patchy Fog
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 68. South wind around 6 mph becoming calm in the evening.

    Low: 68 °F

    Mostly Clear

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 90. Chance of precipitation is 40%.

    High: 90 °F

    Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of thunderstorms before 8pm, then a slight chance of showers after 2am. Partly cloudy, with a low around 70. Chance of precipitation is 30%.

    Low: 70 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 90. Chance of precipitation is 60%.

    High: 90 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.

    Low: 70 °F

    Showers
    Likely then
    Slight Chance
    T-storms

Detailed Forecast

Overnight
Patchy fog after 3am. Otherwise, mostly clear, with a low around 62. Calm wind.
Wednesday
Patchy fog before 9am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 93. Calm wind becoming southeast 5 to 8 mph in the afternoon.
Wednesday Night
Patchy fog after 5am. Otherwise, mostly clear, with a low around 66. South wind 5 to 8 mph becoming calm in the evening.
Thursday
Patchy fog before 7am. Otherwise, mostly sunny, with a high near 93. Calm wind becoming south around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 68. South wind around 6 mph becoming calm in the evening.
Friday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 90. Chance of precipitation is 40%.
Friday Night
A chance of thunderstorms before 8pm, then a slight chance of showers after 2am. Partly cloudy, with a low around 70. Chance of precipitation is 30%.
Saturday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 90. Chance of precipitation is 60%.
Saturday Night
Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.
Sunday
A chance of showers and thunderstorms between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 90. Chance of precipitation is 60%.
Sunday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.
Memorial Day
Showers and thunderstorms likely. Partly sunny, with a high near 89. Chance of precipitation is 60%.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 69. Chance of precipitation is 60%.
Tuesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 90.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SW Dorchester SC
 33.06°N 80.46°W (Elev. 36 ft)
Last Update:
2:30 am EDT May 20, 2026
Forecast Valid:
2am EDT May 20, 2026-6pm EDT May 26, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation