Weather information for the Cumberland Island area is provided below. Average temperatures, climate details and current forecasts are included!
Climate
Monthly average temperatures and precipitation for St. Marys are shown below.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Avg. High | 62° | 64° | 71° | 77° | 82° | 87° | 88° | 88° | 85° | 78° | 71° | 65° |
| Avg. Low | 42° | 44° | 50° | 57° | 64° | 70° | 72° | 72° | 70° | 62° | 54° | 45° |
| Mean | 52° | 54° | 61° | 67° | 74° | 78° | 81° | 81° | 78° | 71° | 64° | 55° |
| Avg. Precip. | 3.4 in | 3.8 in | 3.9 in | 2.8 in | 3.3 in | 5.3 in | 6.3 in | 6.0 in | 6.9 in | 3.3 in | 3.3 in | 2.9 in |
| Note: All temperatures are in degrees Fahrenheit. | ||||||||||||
Overnight
Mostly Clear
Sunday
Mostly Sunny
Sunday Night
Slight Chance Rain Showers
Monday
Chance Rain Showers
Monday Night
Chance Showers And Thunderstorms then Partly Cloudy
Tuesday
Chance Showers And Thunderstorms
Detailed Forecast |
|
|---|---|
| Overnight | Mostly clear, with a low around 76. Northeast wind around 8 mph. |
| Sunday | Mostly sunny, with a high near 88. Northeast wind 7 to 13 mph. |
| Sunday Night | A slight chance of rain showers after 10pm. Partly cloudy, with a low around 75. East wind 2 to 10 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible. |
| Monday | A chance of rain showers before 2pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 90. Heat index values as high as 100. Southeast wind 2 to 10 mph. Chance of precipitation is 30%. |
| Monday Night | A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 74. South wind 2 to 9 mph. Chance of precipitation is 30%. |
| Tuesday | A chance of showers and thunderstorms after 8am. Mostly sunny, with a high near 91. Chance of precipitation is 50%. |
| Tuesday Night | A chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 73. Chance of precipitation is 50%. |
| Wednesday | Showers and thunderstorms likely. Mostly sunny, with a high near 91. Chance of precipitation is 60%. |
| Wednesday Night | Showers and thunderstorms likely. Mostly cloudy, with a low around 75. Chance of precipitation is 60%. |
| Thursday | A chance of showers and thunderstorms. Mostly sunny, with a high near 92. Chance of precipitation is 50%. |
| Thursday Night | A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 74. Chance of precipitation is 50%. |
| Friday | A chance of showers and thunderstorms after 8am. Mostly sunny, with a high near 94. Chance of precipitation is 30%. |
| Friday Night | A chance of showers and thunderstorms. Partly cloudy, with a low around 74. Chance of precipitation is 30%. |
| Saturday | A chance of showers and thunderstorms. Mostly sunny, with a high near 93. Chance of precipitation is 40%. |
