Once again, the mercury will be flirting with the century-mark with dewpoints into the mid-70s. This combination will result in heat indices approaching 110F. This represents dangerous levels of heat that can result in dehydration, heat exhaustion and heatstroke. While there can be an isolated thundershower this afternoon, expect little relief today.
However, this heatwave looks to break on Monday thanks to an increasing cloud cover and a developing northeasterly wind. Nevertheless, most communities will see temperature soar during the morning, then likely drop through the afternoon. Showers and thunderstorms will develop later in the afternoon into the evening hours, continuing into Tuesday morning. Some of the showers will fall heavily at times with relatively widespread amounts ranging between 0.50" to 1.00" with localized 2" amounts.
Beautiful weather with more seasonable levels of heat and humidity arrives for Wednesday and looks to stick around through Thursday and possibly Friday. Right now, these days look to be your best bet for outdoor projects.