Going to be a Warm One...
High pressure is going to slide to our south tomorrow and SW winds will pump in some warmth...getting strong June sun will help too...temps will climb into the mid 80s except for the Cape and Islands. There is a slight chance for an afternoon shower or thunderstorm but I really don't see much of a trigger. Therefore, if one were to form the most likely spot would be over the higher elevations.
The next shortwave moves in on Friday...it will work on the warm and humid air in place across the Northeast and numerous showers should breakout by afternoon...some downpours and or weak thunderstorms could form too. The shortwave will be opening up Saturday morning and will slide out to our east but there will still be some lingering instability...enough to provide a few more showers and maybe a thunderstorm. Otherwise a part sunny, humid day with highs in the upper 70s.
Father's Day still looks good to me. That shortwave will get absorbed by a longer wave cut-off trough to our north and while cyclonic flow will be close to us it will stay far enough to our north so that we see only diurnal clouds (daytime cumulus). Early next week as the trough / cut-off lifts out heat will try to build in...and highs will be running up through the 80s again.
