The weather today will vary greatly from location to location as a disturbance tracks north-northeast out of Pennsylvania towards western New York.
An area of cloud and showers associated with this disturbance will move into western New York this morning. Areas west of Rochester will see some showers and the cloud cover will help keep temperatures from warming much past the low 80s.
Further east though, across the majority of the Finger Lakes and Central New York, there will be partial to full sun to help temperatures warm up once again. In fact, for some locations, today may even be hotter than the last couple of days and we may see a few 90s early this afternoon.
With all of the heat and a very moist airmass, the incoming disturbance should not have too much trouble firing up some thunderstorms across the Finger Lakes by the mid afternoon. Storms will track from south to north. Severe weather is not a major concern, but I do think a couple storms could briefly attain strong to severe status with some gusty winds and small hail. Torrential rain may also accompany the storms, which, on an outside chance, could lead to some localized flash flooding.
The showers and storms should dissipate fairly quickly this evening, but more showers and storms will be possible on Wednesday. A more widespread heavy rain is possible late Thursday as a slow moving front tracks east, which could raise additional flooding concerns.
The front will break the heat though, with temperatures returning to normal for the weekend.