Mostly sunny and hot, with a high near 100. Heat index values as high as 107. Southwest wind around 5 mph becoming calm.

Partly cloudy, with a low around 77. Calm wind.

A 20 percent chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 99. Heat index values as high as 109. Calm wind becoming south around 5 mph in the afternoon.