Changes in the air are almost always accompanied by wind and when the changes are abrupt enough, accompanied by rain or snow.
This weekend, New England will see a couple changes in air that will be marked by wind, but not a lot of rainfall. The wind is sure to make for some changes, too. You can expect challenging conditions for rowers and their coxswains (the folks who steer the boats) at the Head of the Charles Regatta.
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The first change has already been underway with unseasonably cold Friday low temperatures in the 20s and 30s. Don't worry, those temps will rebound over 30 degrees to afternoon highs that actually are just about perfectly normal for this time of the year.
That change of air comes with an increasing southwest wind that will continue as a breeze overnight Friday night. The cool breeze will keep temperatures in the 40s and 50s for a much milder night, leading into a mild Saturday.
One disturbance aloft will trigger a few isolated morning showers Saturday, then the focus for showers splits to Vermont and perhaps scrapes Cape Cod during the midday. Most communities in between will see clouds mixed with some sun and highs reaching the middle 60s.