The National Weather Service in Jackson has placed Jefferson Davis County and Southwest Mississippi in the purple for extreme heat stress risk today through Thursday. Heat indices could be as high as 105-115 degrees during the daytime and temperatures in the upper 90s to low 100s.

Make sure you stay hydrated and take frequent breaks if you plan on working outdoors. Heat related illnesses are likely with prolonged exposure to the dangerous heat.

Today’s forecast is mostly sunny and hot, with a high near 100. Heat index values as high as 109. Calm wind becoming east northeast around 5 mph. Tonight will be partly cloudy, with a low around 75.

Wednesday will be sunny and hot, with a high near 101. Heat index values as high as 114. Calm wind becoming south around 5 mph.

It will be mostly clear, with a low around 76 Wednesday night.

Thursday is mostly sunny and hot, with a high near 100. There is a 50 percent chance of showers and thunderstorms after 1 p.m. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Thursday night will be partly cloudy, with a low around 76. Winds could gust as high as 20 mph.

Extreme heat will continue throughout the weekend, with temperatures expected to be 101. There is a small chance of showers each afternoon through the weekend.