| NWS Forecast for: Charleston Harbor (AMZ340) Issued by: National Weather Service Charleston, SC Last Update: 238 AM EDT Fri Apr 17 2026 | |
| Today: SW winds 5 to 10 kt. Tonight: SW winds 5 to 10 kt. Sat: SW winds 5 kt, becoming S in the afternoon. Sat Night: S winds 10 kt. Sun: SW winds 10 kt, becoming W with gusts to 20 kt in the afternoon. A slight chance of showers in the afternoon. Sun Night: N winds 15 kt with gusts to 20 kt. A slight chance of showers in the evening. Mon: NE winds 10 to 15 kt. Mon Night: SE winds 5 to 10 kt. Tue: NE winds 5 to 10 kt. Tue Night: S winds 5 to 10 kt. | |
| Zone Forecast: Charleston Harbor (AMZ340) | |
Visit your local NWS office at: https://www.weather.gov/chs |