Marine Weather Net

Charleston, SC Weather Forecast


Marine Forecast: Charleston Harbor


Charleston, South Carolina

 Lat: 32.78N, Lon: 79.94W

Current Conditions Updated: 956 PM EST TUE JAN 20 2026

Clear


Temp: 36°F
  • Humidity:
  • 72%
  • Winds:
  • N/A
  • Gusts:
  • N/A MPH
  • Barometer:
  • 30.49 in.
  • Dewpoint:
  • 28°F
  • Heat index:
  • 36°F

  • Sunrise:
  • 7:19 AM EST
  • Sunset:
  • 5:39 PM EST
  • Moonrise:
  • 9:08 AM EST
  • Moonset:
  • 8:40 PM EST

TONIGHT

MOSTLY CLEAR
Lo: 29°F

WEDNESDAY

MOSTLY SUNNY
Hi: 60°F
Lo: 40°F

THURSDAY

PARTLY SUNNY
Hi: 65°F
Lo: 45°F

FRIDAY

PARTLY SUNNY
Hi: 69°F
Lo: 39°F
Precip: 20%
Weather Forecast In Detail:
Forecast Issued: 1233 AM EST Wed Jan 21 2026

Rest Of Tonight...Mostly clear. Lows in the upper 20s. Northeast winds around 5 mph.
Wednesday...Mostly sunny. Highs around 60. Northeast winds around 5 mph, becoming southeast in the afternoon.
Wednesday Night...Mostly cloudy. Lows around 40. Light and variable winds.
Thursday...Partly sunny in the morning, then clearing. Highs in the mid 60s. West winds around 5 mph.
Thursday Night...Partly cloudy in the evening, then becoming mostly cloudy. Lows in the mid 40s. Light and variable winds.
Friday...Partly sunny with a 20 percent chance of showers. Highs in the upper 60s.
Friday Night...Mostly cloudy with a 20 percent chance of showers. Lows in the upper 30s.
Saturday...Mostly cloudy with a 50 percent chance of rain. Much cooler with highs in the mid 40s.
Saturday Night...Rain and freezing rain likely. Lows in the upper 20s. Chance of precipitation 70 percent.
Sunday...Rain and freezing rain. Highs in the upper 30s. Chance of precipitation 90 percent.
Sunday Night...Freezing rain and rain likely. Lows in the upper 20s. Chance of precipitation 70 percent.
Monday...Mostly sunny with a chance of rain and freezing rain. Highs in the upper 30s. Chance of precipitation 50 percent. Wind chill values around 20 in the morning.
Monday Night...Partly cloudy. Lows around 20.
Tuesday...Sunny. Highs in the upper 30s.
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