Charleston Weather - Weather forecasts and discussions for the Charleston, SC Tri-County area

Weather Alerts

Issued by the National Weather Service, last updated at 5:09 PM on October 8, 2026

- Coastal Colleton; Charleston
- 8:00 PM on October 8, 2026
- * WHAT...Up to one half foot of inundation above ground level expected along shorelines and tidal waterways (7.0 to 7.2 feet Mean Lower Low Water at Charleston). * WHERE...Coastal Colleton and Charleston Counties. * WHEN...Until 8 PM EDT this evening. * IMPACTS...This could result in some roads becoming impassable. * ADDITIONAL DETAILS...High tide will occur around 7:08 PM today at Charleston. Saltwater inundation will be possible 1 to 2 hours before and after high tide.
- If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property. Visit water.weather.gov for additional water level and flood impact information.

Forecast for Charleston updated at 2:47 PM on October 8, 2026

Tonight Mostly cloudy. Lows in the upper 60s. Northeast winds around 5 mph.
Friday Cloudy. Highs in the upper 70s. Northeast winds 10 to 15 mph with gusts up to 25 mph.
Friday Night Cloudy. A chance of showers in the evening, then showers likely with a slight chance of thunderstorms after midnight. Lows in the lower 70s. Northeast winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 70 percent.
Saturday Showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Locally heavy rainfall possible. Breezy with highs in the upper 70s. East winds 15 to 25 mph with gusts up to 35 mph. Chance of rain near 100 percent.
Saturday Night Showers with a chance of thunderstorms. Lows in the lower 70s. Southeast winds 15 to 20 mph. Gusts up to 35 mph in the evening. Chance of rain near 100 percent.
Sunday Showers with a chance of thunderstorms. Highs in the lower 80s. Chance of rain 90 percent.
Sunday Night Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Lows in the upper 60s. Chance of rain 50 percent.
Columbus Day Sunny. Highs in the lower 80s.
Monday Night Mostly clear. Lows in the mid 60s.
Tuesday Sunny. Highs in the mid 80s.
Tuesday Night Mostly clear. Lows in the mid 60s.
Wednesday Sunny. Highs in the lower 80s.
Wednesday Night Mostly clear. Lows in the mid 60s.
Thursday Sunny. Highs in the upper 70s.