ISO New England has declared a "precautionary abnormal condition alert." It's hot and will remain that way most of the week, boosting electric use.

The power grid operator said all testing should stop until the heatwave passes.

"This notification alerts power system operations, maintenance, construction, and test personnel, as well as other market participants, that they should suspend any testing or maintenance on their resources that could affect grid reliability," ISO said. (Translation: Keep the power coming to operate air conditioners and fans.)

ISO added demand for electricity may hit the "highest levels thus far this summer." But, will remain "well within the ISO's forecasts entering the season."

Stay cool, Boston.

UNITE HERE Local 26 hotel workers from Boston and Cambridge will be picketing and rallying in front of the newly unionized Hyatt Regency Boston Wednesday, the group said in a relase.

The union is set to begin contract negotiations and announced the 5 p.m. rally after "little progress ... towards a fair deal. Now workers are calling for a vote to authorize a citywide strike when contracts expire on August 31st."

Members of the Massachusetts delegation along with Gov. Maura Healey will mark the $1.72 billion in federal funding for Cape Cod bridges at 11 a.m. Tuesday at the Sagamore Recreation Area.