let's go to tom kieran for the latest on his forecast. anything looking cooler? >> it's not too bad. i'm in the shade and i'm not moving and the air is moving a little bit. so if you are in the shade, out of the sun, and you have to be outside, it's actually fairly pleasant. here we are, this is our typical hottest period of the year. right now, temperatures are into the mid and upper 80s throughout most of the region. 88 now at reagan national. later today, into the mid-90s. average high this time of year, 89. we have not seen mid-90 temperatures since all the way back to last september. we'll have sunshine, a few clouds popping up. a slight chance of an isolated thunderstorm. a little holter on tuesday, wednesday and thursday each afternoon. small chance of an isolated thunderstorm as well as on friday. an increased chance of showers and thunderstorms over the weekend. as we see this pattern breaking down and changing. so i think this heat wave is only going to last between now into saturday, rather than several weeks like we've seen in the past summers. it wil