An area of high pressure will build southeast from the Great Lakes tonight and will influence the weather here during the first part of the upcoming weekend. The high is just the center of a large, dry air mass so as it gets closer to us this evening the scattered clouds that have been around this afternoon will disappear. The wind will also die down after sunset so you can expect temperatures to fall rather quickly. In fact, most of central New York will end up in the 40s by Saturday morning.
During Saturday, with high pressure still in control, we expect another sunny day. We will end up a few degrees below normal for the middle of June but given the rainy weather of Thursday we don’t think we will hear many complaints. It looks like Saturday will end up being the nicest day of the weekend.
We still expect warmer and more humid air to push toward Central New York on Sunday (Father’s Day) as high pressure moves off to the east and loosens its grip on us. A bundle of jet stream energy over the central US will cause winds over the Ohio Valley to become more southerly, drawing that warmer air our way for the second half of the weekend. As that moisture heads our way, we’ll see a period of rain and thunder Sunday. Most, but not all, of our computer models suggest the morning and early afternoon would be the best time to see rain. Since there still is some uncertainty on this timing it would be a good idea to check back over the weekend if you have weather dependant plans for Father’s Day.
The push of warm air arrives for Monday with the best chance for 80 degree weather in our 7 day forecast. This summery air mass could help trigger a few showers and thunderstorms.