Cobb County and most of north and central Georgia are on a tornado watch until 3 a.m. Tuesday.
The National Weather Service issued the alert shortly after 6 p.m. Monday for 90 counties.
The forecast for Monday night and into early Tuesday includes the possibility of scattered thunderstorms across the watch area, with possible isolated severe storms in west Georgia and flooding possible in portions of northwest Georgia.
The chance of precipitation is 80 percent; areas of East Cobb received a brief, light rainshower late Monday afternoon.
The severe thunderstorm and flood watches also issued by the NWS do not include Cobb.
The possibility of two to three inches of rainfall also exists across the watch area through Tuesday.
Tuesday's forecast includes a strong chance of more rain and thunderstorms, with high temperatures in the mid 70s.
The chance of precipitation on Tuesday is 90 percent, according to the NWS.
The rain is expected to taper off by Wednesday, with sunny skies returning to the metro Atlanta area on Thursday.
Temperatures all week will range from lows in the high 50s to highs in the mid to high 70s.