High pressure slides across the Great Lakes through the middle of the week, and we're in for a gradual warmup. We're unseasonably cool Tuesday, with highs in the mid to upper 50s, a northeast breeze and mostly sunny skies. Clear skies overnight and a continued northeast wind will send lows to the low to mid 30s with frost/freeze potential. A south/southwest wind shift will send highs climbing from the 60s Wednesday into the 70s through the end of the week.
