Another day of intense heat, humidity before storms Monday night; cooler temps beginning Tuesday.

WASHINGTON (FOX 5 DC) – Another day of intense heat and humidity for the D.C. region after a dangerously hot weekend – but evening thunderstorms that could bring heavy rain to portions of the area will also give us some relief from the heat wave.
FOX 5’s Mike Thomas says that heat index values reached as high as 109 degrees on Sunday in parts of the D.C. region. High temperatures on Monday are expected to be around 92 degrees with the possibility of heat index temperatures in the triple digits again. A Heat Advisory will be in place for some parts to the east of D.C. from 11 a.m. to 7 p.m. with the possibility of heat index values reaching as high as 105 degrees.

Showers and thunderstorms are expected to begin sometime around the 5 p.m. hour across much of the area. Some of the storms could bring heavy rain into the later evening hours. A Flash Flood Watch for much of the region is in place from 12 p.m. to later in the evening.
After more than a week of temperatures in the 90s we’ll get a much needed break on Tuesday with morning showers and highs around 79 degrees expected. The middle part of the week features temperatures in the 80s.
Heavy storms brought some trees down in parts of the D.C region Sunday night. Utility crews also reported some power outages across the area