Saint Simons Island Weather Forecast
- 80
- 95
Mostly Sunny
- 80
- 94
Chance Thunderstorms
- 79
- 90
Mostly Sunny
- 79
- 89
Mostly Sunny
- 79
- 88
Mostly Sunny
- 79
- 89
Mostly Sunny
Today 28 Jun Coastal Glynn
Sunny. Highs in the mid 90s. West Winds 5 to 10 Mph, becoming southwest 10 to 15 Mph with Gusts up to 25 Mph this afternoon. Heat index Values up to 109.
Tonight 28 Jun Coastal Glynn
Partly cloudy this Evening, then becoming mostly clear. Lows in the upper 70s. Southwest Winds 10 to 15 Mph.
Saint Simons Island Temperature Statistics
June Temperature
Brunswick, Malcolm McKinnon Airport (0.6 miles)
Lowest 4 June, 2026
66.2 °FAverage June
80 °FHighest 12 June, 2026
95 °F
Climate (2021–2026)
Brunswick, Malcolm McKinnon Airport (0.6 miles)
Average Low 2021–2026
63 °FAverage 2021–2026
70.2 °FAverage High 2021–2026
78 °F