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.

A Few Clouds

81°F

27°C

Humidity 100%
Wind Speed Calm
Barometer 29.96 in
Dewpoint 81°F (27°C)
Visibility 10.00 mi
Heat Index91°F (33°C)
Last update 14 Aug 12:55 am EDT
Extended Forecast for

2 Miles ENE Dorchester SC

  • Overnight

    Overnight: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76. Calm wind.

    Low: 76 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: Showers and thunderstorms, mainly after 4pm. High near 89. Heat index values as high as 102. Calm wind becoming southwest 5 to 7 mph in the morning. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 89 °F

    Mostly Sunny
    then T-storms

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 75. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 75 °F

    T-storms
    Likely then
    Partly Cloudy

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93. Heat index values as high as 103. Calm wind.

    High: 93 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 76. Calm wind.

    Low: 76 °F

    Chance
    T-storms

  • Saturday

    Saturday: Showers and thunderstorms likely, mainly after 2pm. Partly sunny, with a high near 91. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 91 °F

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely before 8pm. Partly cloudy, with a low around 73. Chance of precipitation is 60%.

    Low: 73 °F

    T-storms
    Likely then
    Partly Cloudy

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90.

    High: 90 °F

    Mostly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 71.

    Low: 71 °F

    Chance
    T-storms then
    Mostly Clear

Detailed Forecast

Overnight
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76. Calm wind.
Thursday
Showers and thunderstorms, mainly after 4pm. High near 89. Heat index values as high as 102. Calm wind becoming southwest 5 to 7 mph in the morning. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 75. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93. Heat index values as high as 103. Calm wind.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 76. Calm wind.
Saturday
Showers and thunderstorms likely, mainly after 2pm. Partly sunny, with a high near 91. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers and thunderstorms likely before 8pm. Partly cloudy, with a low around 73. Chance of precipitation is 60%.
Sunday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90.
Sunday Night
A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 71.
Monday
Sunny, with a high near 92.
Monday Night
Mostly clear, with a low around 72.
Tuesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 71.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Dorchester SC
 33.15°N 80.37°W (Elev. 79 ft)
Last Update:
1:15 am EDT Aug 14, 2025
Forecast Valid:
1am EDT Aug 14, 2025-6pm EDT Aug 20, 2025
 
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