With the possibility of severe thunderstorms over the weekend followed by much colder temperatures next week, south Louisiana’s weather will be a good excuse to stay indoors.

A cold front will be moving through the area this weekend and could bring strong thunderstorms to much of south Louisiana on Saturday.

“We could see some showers and thunderstorms as early as Friday afternoon,” said Bob Wagner, a meteorologist with the National Weather Service in Slidell. “The main threat for severe weather and thunderstorms will be during the afternoon and evening of Saturday.”

Some of the thunderstorms will bring high winds, frequent lightning and heavy rainfall at times, the National Weather Service said.

Most of the front will have moved through south Louisiana by Saturday night, but there still could be some lingering showers on Sunday, Wagner said.

For Baton Rouge and New Orleans, rainfall on Saturday through early Sunday could bring between 1 and 3 inches, which could raise water levels in some rivers and create temporary accumulation of water in low-lying areas.

The National Weather Service in Lake Charles reports the rain will be followed by a shift to colder weather as an Arctic air mass comes into the area.

“Definitely colder than we’ve been seeing here recently,” Wagner said.

Temperatures that were expected to be in the 60s and even 70s over the weekend will drop to lows in the 30s by Sunday evening in Lafayette and Baton Rouge with the first wave of cold air.

The temperatures will likely continue to drop in Baton Rouge, with lows in the upper 20s by Wednesday night.

The cold weather will take a little longer to reach New Orleans. It is not expected to see temperatures in the 30s until Wednesday night, with the second wave of cold air pushing into the region.

Follow Amy Wold on Twitter, @awold10.