marian marty bass is in the outback. over the state line into pa for the majority of the morning it has been moving ahead of a front that's poised to get here. take a lack at our temperatures. it blocked it in place. we're not going to get much sunshine. the temperatures where the rain is coming down will cool things down. talk about a cooldown. we're having a bit of a change in the season in our immediate forecast. for more, we send it out to marty bass. >>> a quick little graphic to reinforce what we've been discussing. there is going to be some cool and crisp air move into the region. as a matter of fact, tonight might be the coolest night since may the 10th. take a look at our national temperature map. it's the colors you want to pay attention to. look at that plunge of cooler, drier air coming into the eastern half of the united states. going to go this far south and north of new orleans, west of atlanta and almost, well, right to the north carolina, virginia border, if you will. 51 click -- chicago. 48 minneapolis.