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

68°F

20°C

Humidity 49%
Wind Speed NE 3 mph
Barometer 30.16 in
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 22 Jan 1:15 pm EST
Extended Forecast for

Dorchester SC

  • This Afternoon

    This Afternoon: Sunny, with a high near 69. Calm wind.

    High: 69 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Partly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 63. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 63 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A 20 percent chance of showers before 1am. Cloudy, with a low around 38. Light north wind becoming northeast 5 to 9 mph in the evening. Winds could gust as high as 20 mph.

    Low: 38 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: A 30 percent chance of showers after 1pm. Cloudy, with a high near 45. Northeast wind around 10 mph, with gusts as high as 23 mph.

    High: 45 °F

    Cloudy then
    Chance
    Showers

  • Saturday Night

    Saturday Night: Showers likely. Cloudy, with a low around 31. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 31 °F

    Showers
    Likely

  • Sunday

    Sunday: Showers likely. Cloudy, with a high near 59. Chance of precipitation is 60%.

    High: 59 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers. Low around 35. Chance of precipitation is 90%.

    Low: 35 °F

    Showers

  • Monday

    Monday: A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 46.

    High: 46 °F

    Slight Chance
    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 69. Calm wind.
Tonight
Partly cloudy, with a low around 44. Calm wind.
Friday
Mostly cloudy, with a high near 63. Calm wind becoming northeast around 5 mph in the afternoon.
Friday Night
A 20 percent chance of showers before 1am. Cloudy, with a low around 38. Light north wind becoming northeast 5 to 9 mph in the evening. Winds could gust as high as 20 mph.
Saturday
A 30 percent chance of showers after 1pm. Cloudy, with a high near 45. Northeast wind around 10 mph, with gusts as high as 23 mph.
Saturday Night
Showers likely. Cloudy, with a low around 31. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Showers likely. Cloudy, with a high near 59. Chance of precipitation is 60%.
Sunday Night
Showers. Low around 35. Chance of precipitation is 90%.
Monday
A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 46.
Monday Night
Mostly clear, with a low around 19.
Tuesday
Sunny, with a high near 43.
Tuesday Night
Mostly clear, with a low around 24.
Wednesday
Mostly sunny, with a high near 52.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Dorchester SC
 33.15°N 80.39°W (Elev. 98 ft)
Last Update:
1:32 pm EST Jan 22, 2026
Forecast Valid:
1pm EST Jan 22, 2026-6pm EST Jan 28, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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