Heat advisory in effect until 8 p.m.

CHARLESTON, SC (WCSC) - Hot temperatures are being reported all across the Lowcountry on Tuesday. A heat advisory is in effect from noon until 8 p.m.

The afternoon high will top off around 98 degrees with heat index values soaring to near 115 degrees. The high temperatures are expected to hit excessive heat warning levels.

As the evening approaches, temperatures will be slow to fall and heat index readings will still be over 100 through 7 p.m. By news time tonight, temperatures will finally fall back into the lower 80's with a few clouds around.

Overnight lows fall into the upper 70's. A few clouds start off the day Wednesday, but prepare for another day of extremely hot weather. Sun, clouds and a few storms are back for mid-week as the heat index values could top 115 by the afternoon with highs in some areas reaching the 100-degree mark.

There is a bit better chance of a pop up storm Wednesday so hopefully that will cool off some areas. Better rain chances and the prospect for some cooler, but still hot weather, returns late this week into the weekend.

A frontal system is poised to try and move into the region by Friday which would lead to better chances of showers, storms and clouds to keep temps near 90.

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