Tracking a big cool down tomorrow, rain by Wednesday

TONIGHT: Mostly clear and cold with lows in the lower to mid-30s.

TOMORROW: Mostly sunny and chilly with highs in the mid-50s. Clouds moving in toward evening.

EXTENDED: I'm tracking a chilly night as a weak cold front moves in from the north this evening, dropping temperatures into the low to mid-30s. Look for some morning frost followed by a cooler day as highs only reach the mid-50s tomorrow. We'll be sunny through much of the day with clouds rolling in tomorrow night. Rain moves in by mid-morning Wednesday through early evening, leaving us with less than half an inch of rainfall. Thursday is seasonably cool but sunnier with highs in the upper 50s. We'll end the week on a nice note with highs in the lower 60s Friday, and mid-60s by Saturday. Another low pressure system looks to take shape by late Sunday or Monday, bringing another shot at measurable rain.