A 40 percent chance of rain. Mostly cloudy, with a high near 69. Southwest wind 6 to 16 mph, with gusts as high as 31 mph. New precipitation amounts of less than a tenth of an inch possible.
Over the course of the year, the temperature in Atlanta typically varies from 35Â°F to 89Â°F and is rarely below 22Â°F or above 95Â°F. The hot season lasts for 117 days, from May 24 to September 18, with an average daily high temperature above 81Â°F.
Georgia Weather. St. Marys, GA climate is hot during summer when temperatures tend to be in the 80's and cool during winter when temperatures tend to be in the 50's.he warmest month of the year is July with an average maximum temperature of 89.80 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 44.50 degrees Fahrenheit.