Hazardous Weather Conditions
Current conditions at
Charleston, Charleston Air Force Base (KCHS)
Lat: 32.9°NLon: 80.04°WElev: 46ft.
A Few Clouds
86°F
30°C
| Humidity | 77% |
| Wind Speed | SW 6 mph |
| Barometer | 29.92 in (1013.2 mb) |
| Dewpoint | 78°F (26°C) |
| Visibility | 10.00 mi |
| Heat Index | 98°F (37°C) |
| Last update | 17 Aug 8:56 pm EDT |
Extended Forecast for
4 Miles S Summerville SC
Extreme Heat Warning August 18, 11:00am until August 18, 08:00pm
Tonight

Low: 79 °F
Mostly Clear
Tuesday
High: 100 °F
Mostly Sunny
then Chance
T-stormsTuesday Night
Low: 77 °F
Chance
T-storms then
Mostly ClearWednesday
High: 98 °F
Sunny then
Slight Chance
T-stormsWednesday Night

Low: 77 °F
Mostly Clear
Thursday

High: 98 °F
Sunny
Thursday Night

Low: 77 °F
Mostly Clear
Friday
High: 95 °F
Sunny then
Chance
T-stormsFriday Night

Low: 76 °F
Chance
T-storms
Detailed Forecast
Tonight
Mostly clear, with a low around 79. Southwest wind around 5 mph.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Sunny and hot, with a high near 100. Heat index values as high as 117. West wind around 6 mph.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly clear, with a low around 77. Light west wind.
Wednesday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 98. Heat index values as high as 110. Light and variable wind.
Wednesday Night
Mostly clear, with a low around 77. Light south wind.
Thursday
Sunny, with a high near 98.
Thursday Night
Mostly clear, with a low around 77.
Friday
A 30 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 95.
Friday Night
A 30 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 76.
Saturday
A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93.
Saturday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
Sunday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75.
Monday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 94.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
4 Miles S Summerville SC
32.95°N 80.18°W (Elev. 10 ft)
32.95°N 80.18°W (Elev. 10 ft)
8:32 pm EDT Aug 17, 2026
9pm EDT Aug 17, 2026-6pm EDT Aug 24, 2026



