A hot and muggy Saturday is expected across Chattooga County and Northwest Georgia, with scattered showers and thunderstorms developing during the afternoon.

Patchy fog is possible before 8 a.m., followed by mostly sunny skies and a high near 91 degrees. Heat index values could reach around 99. A slight chance of showers will continue during the morning before storm chances increase after 11 a.m. The chance of rain is 40 percent.

Storm coverage is expected to be somewhat lower than Friday, but abundant moisture and instability could still allow a few storms to become strong or severe. The primary threats would be damaging wind gusts, frequent lightning and locally heavy rainfall.

A 30 percent chance of showers and thunderstorms continues Saturday evening, mainly between 7 and 8 p.m. The overnight low will be around 73.

Sunday will remain hot and humid, with a high near 91 and heat index values approaching 99. Showers and thunderstorms are likely after 2 p.m., with a 70 percent chance of rain.

Hotter and generally drier conditions are expected early next week. High temperatures could reach around 93 Monday and Tuesday, with overnight lows remaining in the lower to middle 70s. Forecasters say little nighttime relief is expected, and heat concerns could continue through much of the coming week.