Temperatures could fall as low as 29 degrees from 1 to 9 a.m. Sunday across Fulton and DeKalb counties. A frost advisory covers early Saturday.

The National Weather Service in Peachtree City has issued a freeze warning for Atlanta from 1 to 9 a.m. Sunday, Nov. 15.

The warning says “sub-freezing temperatures as low as 29” are expected. It covers North Fulton, South Fulton and DeKalb counties, along with Clayton, Gwinnett, Henry and dozens of other counties in central and north Georgia. The warning was issued at 11:24 a.m. Friday.

Overview

  • Frost advisory: 1 to 9 a.m. Saturday, temperatures as low as 34
  • Freeze warning: 1 to 9 a.m. Sunday, temperatures as low as 29
  • Where: Fulton and DeKalb counties and much of central and north Georgia
  • The risk: frost and freeze “could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing,” the weather service said
  • What to do: “Take steps now to protect tender plants from the cold”

Two cold mornings

The first cold spell comes early Saturday. A frost advisory runs from 1 to 9 a.m., with temperatures as low as 34 and frost forming.

Sunday morning is colder. The freeze warning starts at 1 a.m. and ends at 9 a.m.

The weather service’s forecast for the city shows:

Period Forecast
Friday night Clear, low around 36, patchy frost after 5 a.m.
Saturday Sunny, high near 55
Saturday night Clear, low around 32, widespread frost after midnight
Sunday Widespread frost before 8 a.m., then sunny, high near 57
Sunday night Mostly clear, low around 37

The 29-degree figure is the coldest the warning expects anywhere in its area. The city forecast is a little milder, with a low around 32 on Saturday night.

What it means for you

  • Plants: bring potted plants inside or cover tender plants before you go to bed Saturday. The weather service said sensitive outdoor plants “may be killed if left uncovered.”
  • Outdoor pipes and hoses: the warning says unprotected outdoor plumbing could be damaged. Disconnect garden hoses and cover outdoor faucets.
  • Early starts: the weather service expects widespread frost before 8 a.m. Sunday and patchy frost before 8 a.m. Saturday, so allow time to clear a frosted windshield.

The weather warms Sunday afternoon, with a high near 57 and a low around 37 Sunday night.