For many folks, this has been a perfect summer day; deep blue sky, low humidity, with temperatures in the 70s to low 80s.  High pressure which has been positioned to our west will slide to our east, which will create a southwest flow across northern New England.  That southwest flow will steer some humid air into our neighborhoods; with humid and warm air being somewhat unstable, we will run the risk of a scattered shower or thundershower in northern counties late on Sunday, with a better chance of more widespread showers and thundershowers on Monday and Tuesday as a frontal boundary drops in from our northwest.    Drier, cooler air will flow back into the region late Tuesday into Wednesday, so the visit with warmer and sticky conditions won't be around too long.  Hope you're weekend is going great!