Mobile could see some of its all-time hottest temperatures in the next few days, according to forecasters.

Mobile had a record high temperature of 99 degrees on Monday, and part of Mobile County was under a heat advisory on Tuesday.

And the National Weather Service is warning that it will likely get hotter.

Forecasters said highs on Tuesday are expected to climb into the upper 90s and could even top 100 degrees for parts of southwest Alabama.

The heat index — or the gauge of how hot it feels when you combine the air temperature and humidity levels — could climb as high as 111 degrees in some areas this afternoon.

“Overall just downright hot,” weather service forecasters said in their morning discussion.

But Wednesday could be worse.

The weather service said the Mobile area “might approach some all-time record highs” on Wednesday.

Why so hot? Forecasters pointed to a very strong area of high pressure that’s sitting over the middle of the U.S. The strength of the ridge is near record levels, according to the weather service.

Forecasters said Wednesday could feature widespread 100 to 103-degree high temperatures, “and given how the rest of the week has been 104 to 105 is not out of the question.”

That’s important, the weather service added, because the all-time record high in Mobile is 105 degrees, which was set in 2000.

The heat index could reach 113 in some areas on Wednesday, the weather service continued.

And while the rest of the week may not be as hot as Wednesday, it may only be a few degrees’ difference.

Highs on Thursday through at least Sunday will be in the mid- to upper 90s to even triple digits across southwest Alabama, according to weather service forecasts.

More high temperature records will be in jeopardy of being toppled, forecasters said.