Clouds and sprinkles and some fog will be around tonight with mild low temperatures in the upper-forties to mid-fifties. The next storm system is strengthening to our Northwest, sinking out of Canada. A strong surface cold front gets support from a strengthening upper level low. Temperatures will surge into the middle seventies on Thursday, ahead of the boundary, before it triggers some afternoon showers and thunderstorms with strong winds. Those breezes will shift to the West-Northwest, quickly clear out the rain, and send our temperatures plummeting. Readings inland Friday morning will drop to the mid-thirties and even with some daytime sunshine have a tough time breaking beyond the lower or mid-fifties during the day. Quiet but very chilly air stays in place for the weekend, and Milwaukee could see the first official freezing temperature by Sunday morning.