Marine Weather Net

Charleston, SC Weather Forecast


Marine Forecast: Charleston Harbor


Charleston, South Carolina

 Lat: 32.78N, Lon: 79.94W

Current Conditions Updated: 556 PM EDT MON JUN 15 2026

Mostly Cloudy
Temp: 90°F
  • Humidity:
  • 42%
  • Winds:
  • 10 MPH WNW
  • Gusts:
  • N/A MPH
  • Barometer:
  • 29.83 in.
  • Dewpoint:
  • 64°F
  • Heat index:
  • 91°F

  • Sunrise:
  • 6:09 AM EDT
  • Sunset:
  • 8:28 PM EDT
  • Moonrise:
  • 6:20 AM EDT
  • Moonset:
  • 9:37 PM EDT

THIS AFTERNOON

PARTLY SUNNY
Hi: 91°F
Lo: 71°F

TUESDAY

CHANCE OF SHOWERS
Hi: 85°F
Lo: 69°F
Precip: 50%

WEDNESDAY

PARTLY SUNNY
Hi: 89°F
Lo: 71°F
Precip: 70%

THURSDAY

MOSTLY SUNNY
Hi: 95°F
Lo: 75°F
Precip: 40%
Weather Forecast In Detail:
Forecast Issued: 217 PM EDT Mon Jun 15 2026

This Afternoon...Partly sunny. Highs in the lower 90s. West winds 5 to 10 mph with gusts up to 20 mph.
Tonight...Mostly cloudy. Lows in the lower 70s. West winds around 5 mph.
Tuesday...Mostly cloudy with a chance of showers. A chance of thunderstorms in the afternoon. Highs in the mid 80s. West winds 5 to 10 mph. Chance of rain 50 percent.
Tuesday Night...Mostly cloudy with a chance of showers. A chance of thunderstorms, mainly in the evening. Lows in the upper 60s. Southwest winds 5 to 10 mph. Chance of rain 50 percent.
Wednesday...Mostly cloudy with showers likely with a slight chance of thunderstorms in the morning, then partly sunny with a chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Southwest winds 5 to 10 mph. Chance of rain 70 percent.
Wednesday Night...Partly cloudy. Lows in the lower 70s.
Thursday...Mostly sunny with a chance of showers and thunderstorms. Highs in the mid 90s. Chance of rain 40 percent.
Thursday Night...Mostly cloudy with a chance of showers and thunderstorms. Lows in the mid 70s. Chance of rain 50 percent.
Juneteenth...Showers and thunderstorms likely. Highs in the lower 90s. Chance of rain 70 percent.
Friday Night...Mostly cloudy with a chance of showers and thunderstorms. Lows in the lower 70s. Chance of rain 50 percent.
Saturday...Partly sunny with a chance of showers with a slight chance of thunderstorms. Highs in the upper 80s. Chance of rain 40 percent.
Saturday Night...Partly cloudy with a 20 percent chance of showers. Lows in the upper 60s.
Sunday...Mostly sunny. Highs in the lower 90s.
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