The Storms Prediction Center has placed portions of our entire area in a "slight" risk, or level 2. The SPC also has increased the risk of some damaging, straight-line winds Friday afternoon and evening, particularly from Worcester County and areas south-westward.

Some relief from the heat arrives on Saturday, with a mainly dry day and temperatures cooling back down to the 80s for much of the state. The Conneticut River Valley should see temperatures in the high 80s, while it should stay cooler on the coast, with highs in the low 80s.

A heat advisory is in effect in Boston and several other Massachusetts communities through 7 p.m. on July 17. The National Weather Service warned of "dangerous heat and humidity" with heat indices soaring to 95 to 100 degrees. Boston Mayor Michelle Wu also declared a heat emergency for the City of Boston from July 16 to 18.

Mayor Michelle Wu declared a heat emergency for Boston from Wednesday through Friday, with the heat index predicted to fluctuate from 91 to 97 degrees with little overnight relief, the city announced.

As another bout of sweltering heat is set to hit Massachusetts, the MBTA is alerting riders that the extreme heat could cause delays on the commuter rail on Friday.

Boston faces a hot Thursday with a Heat Advisory; relief and cooler temperatures are expected after a cold front with potential rain and thunderstorms later in the day.

National Weather Service forecasters also warned of a "handful" of strong to severe thunderstorms on Friday afternoon.

The Boston region is in for sweltering temperatures as this week kicks off before chances of rain and storms appear on and off as the days go on, according to National Weather Service forecasts.

Boston is facing a heatwave with feels-like temperatures reaching up to 100 degrees, and a heat advisory is in effect.

BOSTON - Be prepared for dangerous heat Monday and Tuesday. It will feel like 100 degrees outside across Massachusetts and southern New Hampshire so be prepared.