A frontal boundary is draped over the Finger Lakes this morning. An area of low pressure is riding along this front over the Mid-west and should bring some showers into the Finger Lakes by this evening.
Rain is widespread early this morning across northern Illinois, southern Wisconsin and pushing into Michigan and Indiana. This rain will slowly spread east throughout the day and should begin to push into the Finger Lakes later this afternoon before overspreading the area tonight.
At the same time, high pressure north of the rain will block it from moving further north and may move east fast enough to deflect some of the rain south into Pennsylvania. As a result, most of the Finger Lakes will see a quarter-inch of rain or less, while areas further south see closer to a half-inch.
The rain should taper off by sunrise tomorrow, but a few lingering showers will be possible across the eastern Finger Lakes and eastern Southern Tier.
Temperatures will be a bit cooler Tuesday and Wednesday with the front over us or to our south. High temperatures will near 70º today, with upper 60s and low 70s possible on Wednesday for most areas. Some areas in the Southern Tier and southern Finger Lakes could be colder on Wednesday if clouds and showers stick around.
The cool down is brief though, with high temperatures at or above 80º from Friday through the weekend and into early next week.
