Marine Weather Net

St. Simons Island, GA Weather Forecast




Saint Simons Island, Georgia

 Lat: 31.15N, Lon: 81.37W

Current Conditions Updated: 1015 PM EDT MON JUN 15 2026

Clear


Temp: 77°F
  • Humidity:
  • 88%
  • Winds:
  • 13 MPH WSW
  • Gusts:
  • N/A MPH
  • Barometer:
  • 29.93 in.
  • Dewpoint:
  • 73°F
  • Heat index:
  • 78°F

  • Sunrise:
  • 6:19 AM EDT
  • Sunset:
  • 8:29 PM EDT
  • Moonrise:
  • 6:31 AM EDT
  • Moonset:
  • 9:38 PM EDT

TONIGHT

CHANCE OF T-STORM
Lo: 75°F
Precip: 70%

TUESDAY

CHANCE OF SHOWERS
Hi: 89°F
Lo: 71°F
Precip: 60%

WEDNESDAY

THUNDER STORMS
Hi: 89°F
Lo: 75°F
Precip: 70%

SUNDAY

PARTLY CLOUDY
Hi: 91°F
Lo: 75°F
Precip: 20%
Weather Forecast In Detail:
Forecast Issued: 603 PM EDT Mon Jun 15 2026

Tonight...Cloudy. Showers and thunderstorms likely this evening, then a slight chance of showers after midnight. Some thunderstorms May produce gusty winds and frequent lightning this evening. Lows in the mid 70s. Southwest winds 10 to 15 mph. Chance of rain 70 percent.
Tuesday...Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. Some thunderstorms May produce gusty winds and frequent lightning in the afternoon. Locally heavy rainfall possible in the afternoon. Highs in the upper 80s. West winds 5 to 10 mph. Chance of rain 60 percent.
Tuesday Night...Cloudy. Showers and thunderstorms in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. Some thunderstorms May produce gusty winds and frequent lightning in the evening. Lows in the lower 70s. West winds 5 to 10 mph, becoming southwest after midnight. Chance of rain 80 percent.
Wednesday...Showers likely. Thunderstorms likely in the afternoon. Highs in the upper 80s. Southwest winds 10 to 15 mph. Chance of rain 70 percent.
Wednesday Night...Mostly cloudy. Showers likely with a chance of thunderstorms in the evening. Lows in the mid 70s. Southwest winds 5 to 10 mph. Chance of rain 70 percent.
Thursday...Mostly cloudy with showers and thunderstorms likely. Highs in the lower 90s. Lows in the mid 70s. Chance of rain 60 percent. Heat index values up to 110.
Friday...Mostly cloudy with showers and thunderstorms likely. Highs in the lower 90s. Lows in the mid 70s. Chance of rain 60 percent. Heat index values up to 110.
Saturday...Mostly cloudy with showers and thunderstorms likely. Highs in the lower 90s. Lows in the mid 70s. Chance of rain 60 percent. Heat index values up to 110.
Sunday...Partly cloudy with a slight chance of showers and thunderstorms. Highs in the lower 90s. Lows in the mid 70s. Chance of rain 20 percent.
Monday...Partly cloudy with a slight chance of showers and thunderstorms. Highs in the lower 90s. Lows in the mid 70s. Chance of rain 20 percent.
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