From the National Weather Service:
[Sunday, August 5th PM Weather Briefing]
Both Monday and Tuesday ... highs will range around the low to mid 90s.
Such heat combined with humidity, many locations will see heat indices around the upper 90s with several locations observing values at or above 100 degrees.
HEAT ADVISORIES are posted for those areas with forecast heat indices 95 to 104.
In such conditions, with prolonged outdoor heat and exposure there is the risk of heat stress and heat-related illnesses, especially for those not privy to wearing loose, light-weight clothing and/or having to be out in the sun for long periods of time. Additional heat safety rules are provided below.
A reminder, there will be plenty of sunshine with a UV index of 9 or above. In addition to conducting heat safety, protection from sun damage is recommended.