What: Heat index values up to 96.
Where: Portions of northern Connecticut, central, eastern, northeastern, southeastern, and western Massachusetts, and northern Rhode Island.
When: Until 8 PM EDT Monday.
Impacts: Hot temperatures and high humidity may cause health impacts if precautions are not taken.
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.