Heat Advisory

Locations Affected

Boston, MA ∙ Providence, RI ∙ Springfield, MA ∙ Worcester, MA ∙ Hartford, CT ∙ Cambridge, MA ∙ Lowell, MA ∙ Quincy, MA ∙ Lynn, MA ∙ Warwick, RI

Full Alert Message

URGENT - WEATHER MESSAGE National Weather Service Boston/Norton MA 1257 PM EDT Mon May 18 2026 ...HEAT ADVISORY IN EFFECT FROM 11 AM TUESDAY TO 8 PM EDT WEDNESDAY... * WHAT...Heat index values up to 96 expected. * WHERE...Much of Southern New England, except for the eastern slopes of the Berkshires, the Rhode Island and Massachusetts South Coast, Cape Cod and the Islands. * WHEN...From 11 AM Tuesday to 8 PM EDT Wednesday. * IMPACTS...Hot temperatures, a moderate degree of humidity with little relief Tuesday night may cause heat illnesses. * ADDITIONAL DETAILS...This is the first multi-day period of hot temperatures. Those not yet accustomed to hot temperatures with a moderate degree of humidity should take appropriate heat-related precautions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives, neighbors and pets. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.

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