Marine Weather Net

Charleston, SC Weather Forecast


Marine Forecast: Charleston Harbor


Charleston, South Carolina

 Lat: 32.78N, Lon: 79.94W

Current Conditions Updated: 256 AM EDT SUN JUL 26 2026

Mostly Cloudy
Temp: 77°F
  • Humidity:
  • 100%
  • Winds:
  • N/A
  • Gusts:
  • N/A MPH
  • Barometer:
  • 29.94 in.
  • Dewpoint:
  • 77°F
  • Heat index:
  • 78°F

  • Sunrise:
  • 6:28 AM EDT
  • Sunset:
  • 8:21 PM EDT
  • Moonrise:
  • 6:41 PM EDT
  • Moonset:
  • 3:29 AM EDT

TONIGHT

CHANCE OF T-STORM
Lo: 71°F
Precip: 50%

SUNDAY

PARTLY SUNNY
Hi: 89°F
Lo: 71°F
Precip: 90%

MONDAY

MOSTLY SUNNY
Hi: 91°F
Lo: 75°F

TUESDAY

SUNNY

Hi: 99°F
Lo: 79°F
Weather Forecast In Detail:
Forecast Issued: 217 AM EDT Sun Jul 26 2026

Rest Of Tonight...Partly cloudy with a chance of showers and thunderstorms. Lows in the lower 70s. Light and variable winds. Chance of rain 50 percent.
Sunday...Partly sunny. A chance of showers and thunderstorms in the morning, then showers and thunderstorms in the afternoon. Highs in the upper 80s. Northwest winds around 5 mph, becoming east in the afternoon. Chance of rain 90 percent.
Sunday Night...Partly cloudy. A chance of showers and thunderstorms in the evening. Lows in the lower 70s. Southeast winds around 5 mph in the evening, becoming light and variable. Chance of rain 50 percent.
Monday...Mostly sunny. Highs in the lower 90s. Northeast winds around 5 mph.
Monday Night...Partly cloudy in the evening, then clearing. Lows in the mid 70s. Southeast winds around 5 mph in the evening, becoming light and variable.
Tuesday...Sunny. Highs in the upper 90s. Heat index values up to 105.
Tuesday Night...Partly cloudy with a slight chance of showers and thunderstorms. Lows in the upper 70s. Chance of rain 20 percent. Heat index values up to 105 early in the evening.
Wednesday...Mostly sunny with a chance of showers and thunderstorms. Highs in the mid 90s. Chance of rain 40 percent. Heat index values up to 105.
Wednesday Night...Partly cloudy with a chance of showers with a slight chance of thunderstorms. Lows in the lower 70s. Chance of rain 40 percent.
Thursday...Sunny with a slight chance of showers and thunderstorms. Highs in the mid 90s. Chance of rain 20 percent.
Thursday Night...Mostly clear. Lows in the lower 70s.
Friday...Sunny with a chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 30 percent.
Friday Night...Partly cloudy with a slight chance of showers and thunderstorms. Lows in the lower 70s. Chance of rain 20 percent.
Saturday...Mostly sunny with a chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 40 percent.
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