Marine Weather Net

Cumberland Island, GA Weather Forecast




Cumberland Island, Georgia

 Lat: 30.83N, Lon: 81.45W

Current Conditions Updated: 1215 AM EDT TUE AUG 11 2026

Clear


Temp: 75°F
  • Humidity:
  • 92%
  • Winds:
  • N/A
  • Gusts:
  • N/A MPH
  • Barometer:
  • 30.15 in.
  • Dewpoint:
  • 73°F
  • Heat index:
  • 75°F

  • Sunrise:
  • 6:48 AM EDT
  • Sunset:
  • 8:10 PM EDT
  • Moonrise:
  • 5:23 AM EDT
  • Moonset:
  • 7:42 PM EDT

TONIGHT

CHANCE OF T-STORM
Lo: 75°F
Precip: 20%

TUESDAY

PARTLY SUNNY
Hi: 95°F
Lo: 77°F
Precip: 70%

WEDNESDAY

MOSTLY SUNNY
Hi: 99°F
Lo: 77°F
Precip: 40%

THURSDAY

SUNNY

Hi: 99°F
Lo: 79°F
Precip: 20%
Weather Forecast In Detail:
Forecast Issued: 747 PM EDT Mon Aug 10 2026

Tonight...Partly cloudy. A slight chance of showers and thunderstorms this evening. Lows in the mid 70s. South winds 10 to 15 mph. Chance of rain 20 percent. Heat index values up to 105 early this evening.
Tuesday...Partly sunny. Showers and thunderstorms likely in the afternoon. Highs in the mid 90s. Southwest winds 5 to 10 mph. Chance of rain 70 percent. Heat index values up to 109.
Tuesday Night...Mostly cloudy with a chance of showers and thunderstorms in the evening, then partly cloudy after midnight. Lows in the upper 70s. Southwest winds 5 to 10 mph. Chance of rain 50 percent.
Wednesday...Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the upper 90s. West winds 5 to 10 mph. Chance of rain 40 percent. Heat index values up to 113.
Wednesday Night...Partly cloudy with a chance of showers and thunderstorms in the evening, then mostly clear after midnight. Lows in the upper 70s. Southwest winds 5 to 10 mph. Chance of rain 40 percent. Heat index values up to 105 early in the evening.
Thursday...Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the upper 90s. Chance of rain 20 percent. Heat index values up to 115.
Thursday 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.
Friday And Friday Night...Partly cloudy. A chance of showers and thunderstorms. Highs in the upper 90s. Lows in the upper 70s. Chance of rain 30 percent. Heat index values up to 115.
Saturday...Partly cloudy with a slight chance of showers and thunderstorms. Highs in the mid 90s. Lows in the upper 70s. Chance of rain 20 percent. Heat index values up to 115.
Sunday...Partly cloudy with a slight chance of showers and thunderstorms. Highs in the mid 90s. Lows in the upper 70s. Chance of rain 20 percent. Heat index values up to 115.
Monday...Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the mid 90s. Chance of rain 20 percent. Heat index values up to 115.
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