A freeze warning covers Alpharetta from 1 to 9 a.m. Sunday, with lows near 29 degrees. Frost is also likely early Saturday, when lows near 34 are forecast.

Temperatures in Alpharetta could drop to 29 degrees early Sunday. The National Weather Service in Peachtree City has issued a freeze warning for North Fulton from 1 a.m. to 9 a.m. Sunday.

The weather service issued the freeze warning and a frost advisory at 11:24 a.m. Friday. The frost advisory runs from 1 a.m. to 9 a.m. Saturday, with temperatures as low as 34 degrees. The warning area takes in North Fulton, South Fulton, Gwinnett and DeKalb counties and much of central, north central and northeast Georgia.

The forecast

The weather service forecast for Alpharetta calls for:

  • Friday night: patchy frost after midnight, with a low around 34
  • Saturday: frost before 9 a.m., then sunny, with a high near 54
  • Saturday night: clear, with widespread frost after 10 p.m. and a low around 29
  • Sunday: widespread frost before 8 a.m., then sunny, with a high near 57
  • Sunday night: mostly clear, with a low around 34

What it means for you

The weather service said frost and freeze conditions could kill crops and other sensitive plants. It said the cold could also damage unprotected outdoor plumbing.

“Take steps now to protect tender plants from the cold,” the weather service said. It said sensitive outdoor plants may be killed if left uncovered.

Saturday night is the coldest of the two nights. The freeze warning ends at 9 a.m. Sunday, and the forecast high that afternoon is 57 degrees.