Severe Thunderstorms and Heavy Rain in the Central Plains; Dry Thunderstorms and Critical Fire Weather in the West

Severe thunderstorms and heavy rain may produce large to very-large hail, severe winds, tornadoes and numerous instances of flash flooding across portions of the central Plains. Scattered slow-moving storms will continue to bring a flash flooding threat to the central Gulf Coast. Elevated to critical fire weather conditions are expected across much of the western U.S.. Read More >

Current conditions at

Summerville Airport (KDYB)

Lat: 33.06°NLon: 80.28°WElev: 56ft.

A Few Clouds

75°F

24°C

Humidity 94%
Wind Speed Calm
Barometer 29.92 in
Dewpoint 73°F (23°C)
Visibility 9.00 mi
Last update 20 Jun 1:55 am EDT
Extended Forecast for

Summerville SC

  • Overnight

    Overnight: A 20 percent chance of showers and thunderstorms after 3am.  Partly cloudy, with a low around 72. Calm wind.

    Low: 72 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: Mostly sunny, with a high near 91. Northeast wind 3 to 6 mph.

    High: 91 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 70. Calm wind.

    Low: 70 °F

    Partly Cloudy

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 92. Calm wind becoming south 5 to 8 mph in the afternoon.

    High: 92 °F

    Partly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms before 8pm.  Partly cloudy, with a low around 74. South wind 3 to 6 mph.

    Low: 74 °F

    Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 94.

    High: 94 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms before 2am.  Partly cloudy, with a low around 76.

    Low: 76 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 95.

    High: 95 °F

    Sunny then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms before 2am.  Partly cloudy, with a low around 74.

    Low: 74 °F

    Chance
    T-storms

Detailed Forecast

Overnight
A 20 percent chance of showers and thunderstorms after 3am. Partly cloudy, with a low around 72. Calm wind.
Saturday
Mostly sunny, with a high near 91. Northeast wind 3 to 6 mph.
Saturday Night
Partly cloudy, with a low around 70. Calm wind.
Sunday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92. Calm wind becoming south 5 to 8 mph in the afternoon.
Sunday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 74. South wind 3 to 6 mph.
Monday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 94.
Monday Night
A 20 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 76.
Tuesday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 95.
Tuesday Night
A 30 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 74.
Wednesday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73.
Thursday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 92.
Thursday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73.
Friday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
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ABOUT THIS FORECAST

 
Point Forecast:
Summerville SC
 33.01°N 80.17°W (Elev. 49 ft)
8:31 pm EDT Jun 19, 2026
2am EDT Jun 20, 2026-6pm EDT Jun 26, 2026
 
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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