Marine Weather Net

Charleston, SC Weather Forecast


Marine Forecast: Charleston Harbor


Charleston, South Carolina

 Lat: 32.78N, Lon: 79.94W

Current Conditions Updated: 1256 PM EDT WED JUL 22 2026

Mostly Cloudy
Temp: 92°F
  • Humidity:
  • 57%
  • Winds:
  • 10 MPH SSW
  • Gusts:
  • N/A MPH
  • Barometer:
  • 30.01 in.
  • Dewpoint:
  • 75°F
  • Heat index:
  • 102°F

  • Sunrise:
  • 6:25 AM EDT
  • Sunset:
  • 8:23 PM EDT
  • Moonrise:
  • 2:59 PM EDT
  • Moonset:
  • 12:44 AM EDT

REST OF TODAY

PARTLY SUNNY
Hi: 95°F
Lo: 79°F

THURSDAY

MOSTLY SUNNY
Hi: 95°F
Lo: 75°F

FRIDAY

PARTLY SUNNY
Hi: 91°F
Lo: 75°F
Precip: 70%

SATURDAY

THUNDER STORMS
Hi: 91°F
Lo: 71°F
Precip: 70%
Weather Forecast In Detail:
Forecast Issued: 1008 AM EDT Wed Jul 22 2026

Rest Of Today...Partly sunny. Highs in the mid 90s. Southwest winds 10 to 15 mph with gusts up to 25 mph.
Tonight...Partly cloudy. Lows in the upper 70s. South winds 10 to 15 mph.
Thursday...Mostly sunny. Highs in the mid 90s. Southwest winds 5 to 10 mph.
Thursday Night...Partly cloudy in the evening, then becoming mostly cloudy. A slight chance of thunderstorms in the evening. A slight chance of showers. Lows in the mid 70s. South winds 5 to 10 mph. Chance of rain 20 percent.
Friday...Partly sunny. A chance of showers in the morning, then showers and thunderstorms likely in the afternoon. Highs in the lower 90s. Southwest winds around 5 mph. Chance of rain 70 percent.
Friday Night...Mostly cloudy with a chance of showers and thunderstorms. Lows in the mid 70s. Chance of rain 50 percent.
Saturday...Showers and thunderstorms likely. Highs in the lower 90s. Chance of rain 70 percent.
Saturday Night...Mostly cloudy with a chance of showers and thunderstorms. Lows in the lower 70s. Chance of rain 50 percent.
Sunday...Mostly sunny with a chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 50 percent.
Sunday Night...Mostly clear with a slight chance of showers and thunderstorms. Lows in the mid 70s. Chance of rain 20 percent.
Monday...Sunny. Highs in the mid 90s. Heat index values up to 105.
Monday Night...Partly cloudy. Lows in the mid 70s.
Tuesday...Sunny with a chance of showers and thunderstorms. Highs in the upper 90s. Chance of rain 30 percent. Heat index values up to 110.
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