St Marys Weather Forecast
- 69
- 88
Partly Sunny
- 70
- 86
Mostly Sunny
- 71
- 84
Slight Chance Thunderstorms
- 72
- 84
Chance Thunderstorms
- 71
- 84
Chance Thunderstorms
- 71
- 86
Chance Thunderstorms
Today 18 Sep Coastal Camden
Sunny. Highs in the upper 80s. East Winds 5 to 10 Mph.
Tonight 18 Sep Coastal Camden
Partly cloudy in the Evening, then clearing. Lows in the upper 60s. Southeast Winds 5 to 10 Mph.
St Marys Temperature Statistics
September Temperature
Fernandina Beach Municipal Airport (11.8 miles)
Lowest 15 September, 2025
66.2 °FAverage September
77.2 °FHighest 6 September, 2025
87.8 °F
Climate (2020–Present)
Fernandina Beach Municipal Airport (11.8 miles)
Average Low 2020–2025
62.2 °FAverage 2020–2025
69.6 °FAverage High 2020–2025
77.7 °F