...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM EDT SATURDAY... * HEAT INDEX VALUES...will be near 105 today due to temperatures in the low to mid 90s and dewpoints in the mid 70s. 105 to 110 degree heat index values can be expected for Saturday due to temperatures in the middle 90s and dewpoints in the middle 70s. * TIMING...Through Saturday evening. Very little relief is expected tonight with low temperatures only falling into the middle and upper 70s. * IMPACTS...Heat stroke, heat exhaustion and other heat related illnesses will be possible, especially if you spend a significant amount of time outdoors, or are involved in any strenuous outdoor activity. The cumulative impacts of heat on the human body can be significant when consecutive days of excessive heat occur.