Dense fog will burn off through 9AM this morning. Drive SLOW. It's a warm and muggy start, but big changes move in tonight. Expect partly sunny skies today with storms moving in after 11AM for our northern counties, extending south to the Ozarks by 5PM. Temperatures will reach the mid 80s this afternoon, before a big cool down tonight. We'll reach the 50s tonight, and by Tuesday temperatures will be nearly 10 degrees cooler in the 70s. For additional weather updates follow @ABC17Stormtrack.