Warm and sticky conditions persist through tonight and into tomorrow. Tonight, temperatures will only fall back into the middle 60s throughout northern and central New England, and into the lower 70s for southern New England. Winds will be from the SW at 5-10mph under mostly clear skies.
Clouds move in Thursday morning, as the cold front that extends from the Great Lakes region back down toward the Tennessee valleys advances eastward. The cold front will move through New England Thursday afternoon with a chance for showers ahead of it in the morning. The humidity could potentially tip off some stronger thunderstorms in parts of New England in the afternoon and evening, however there is only a slight risk of severe weather associated with these storms since mid level cape values are not high enough to merit any major concern. However do keep an eye to the sky as some of these thunderstorms could pack some damaging wind and cloud-to-ground lightning. Otherwise, Thursday will remain mostly cloudy with a calm SW wind. Highs in the upper 80s will be accompanied with oppressive dew point values in the upper 60s and lower 70s pushing heat indices for the area up into middle 90s.
An interesting aside regarding dew points: The high dew point values Thursday will hardly go unnoticed, making the air feel so thick it will be quite an uncomfortable day outside (unless you are at the beach or lake of course). Dew points will make a run at what is known as the "design dew point." For the city of Boston, the design dew point is 72 degrees Farhenheit. When high dew points exceed design dew points, the humidity has exceeded engineering specifications of air conditioning systems causing them to operate inefficiently, use more energy, and decrease the cooling effect. In other words, a great day for a Dunkin' Donuts coolatta for some "internal AC."
An upper level trough in southern Canada will be responsible for pushing another cold front through the area midday Friday. The stickiness will leave with it, and the dew point temperatures will drop as the front passes. Temperatures will only reach the lower 80s south, and upper 70s in the north country making it a much more seasonable day than we've experienced in the past few. Winds will be out of the west at 5-10mph with mostly clear skies.
High pressure from Canada builds into the region bringing with it slightly cooler temperatures and drier air. Expect partly cloudy skies with highs generally in the upper 70s. Temperatures have the potential to eclipse the 80 degree mark in southern CT and RI.
Another beautiful weekend weather day, ideal for an afternoon BBQ. High pressure remains in control with a low risk of any shower activity. Expect mostly sunny skies with highs around 80 degrees.
A similar day to Sunday (except that it is the beginning of the work week). Mostly sunny skies with highs in the upper 70s in Maine, and lower-mid 80s elsewhere in New England.
Partly cloudy skies will become mostly cloudy, as a cold front moves through New England Tuesday night into Wednesday morning. Highs will be around 80.
Look for a blend of sun and clouds with highs in the upper 70s. Chance of precipitation is 40%.
Take a look at this great picture I took coming into Boston from an airplane above the cloud deck: