Marine Weather Net

James Island, SC Weather Forecast


Marine Forecast: Charleston Harbor


James Island, South Carolina

 Lat: 32.73N, Lon: 79.93W

Current Conditions Updated: 1256 PM EDT SAT OCT 25 2025

Mostly Clear
Temp: 70°F
  • Humidity:
  • 45%
  • Winds:
  • 7 MPH VRB
  • Gusts:
  • 18 MPH
  • Barometer:
  • 30.32 in.
  • Dewpoint:
  • 48°F
  • Heat index:
  • 77°F

  • Sunrise:
  • 7:29 AM EDT
  • Sunset:
  • 6:35 PM EDT
  • Moonrise:
  • 11:26 AM EDT
  • Moonset:
  • 9:04 PM EDT

TODAY

MOSTLY SUNNY
Hi: 70°F
Lo: 55°F

SUNDAY

PARTLY SUNNY
Hi: 70°F
Lo: 57°F

MONDAY

CHANCE OF T-STORM
Hi: 65°F
Lo: 51°F
Precip: 50%

TUESDAY

CHANCE OF SHOWERS
Hi: 61°F
Lo: 51°F
Precip: 20%
Weather Forecast In Detail:
Forecast Issued: 722 AM EDT Sat Oct 25 2025

Today...Mostly sunny. Highs around 70. Northeast winds 10 to 15 mph with gusts up to 25 mph.
Tonight...Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 50s. Northeast winds 10 to 15 mph.
Sunday...Mostly cloudy in the morning, then becoming partly sunny. Highs around 70. Northeast winds 10 to 15 mph with gusts up to 25 mph.
Sunday Night...Mostly cloudy. A chance of showers after midnight. Lows in the upper 50s. Northeast winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 40 percent.
Monday...Cloudy with a chance of showers with a slight chance of thunderstorms. Highs in the mid 60s. Northeast winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 50 percent.
Monday Night...Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Lows in the lower 50s. Chance of rain 50 percent.
Tuesday...Mostly cloudy with a 20 percent chance of showers. Highs in the lower 60s.
Tuesday Night...Mostly cloudy with a 20 percent chance of showers. Lows in the lower 50s.
Wednesday...Partly sunny with a chance of showers with a slight chance of thunderstorms. Highs in the mid 60s. Chance of rain 40 percent.
Wednesday Night...Mostly cloudy with a 40 percent chance of showers. Lows in the lower 50s.
Thursday...Partly sunny with a 40 percent chance of showers. Highs in the mid 60s.
Thursday Night...Partly cloudy with a 20 percent chance of showers. Lows in the upper 40s.
Friday...Mostly sunny. Highs in the lower 60s.
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