After a weekend full of great weather, the high pressure responsible for the sun and warmth will try to give the Finger Lakes one more really nice day on Monday.
A number of disturbances, including one over the Mid-Atlantic, a second diving through the Midwest and a small frontal boundary over New England will all try to erode away at the high pressure today. With temperatures again climbing into the 80s for many areas, there may be just enough to pop one or two showers or storms this afternoon.
For the most part though, the majority of the region should stay rain free on Monday.
There will be a better chance for afternoon and evening rain and thunder on Tuesday as the Midwestern system approaches. Right now, the best chance for rain looks to be over western New York, with chances lowering further east. Unlike on Monday, I think most areas will see some rain on Tuesday or Tuesday night.
A few showers may linger into early Wednesday, but a new area of high pressure will build in towards the end of the week with some briefly cooler weather.