Weather Alerts For Lawrenceville, NJ

# HEADLINE -------------------- HEAT ADVISORY IN EFFECT FROM NOON TODAY TO 8 PM EDT TUESDAY # DETAILS -------------------- WHAT Heat index values up to 97 degrees expected. WHERE In New Jersey, Mercer, Camden, Gloucester, and Northwestern Burlington Counties. In Pennsylvania, Delaware, Eastern Montgomery, Lower Bucks, and Philadelphia Counties. WHEN From noon today to 8 PM EDT Tuesday. IMPACTS Hot temperatures and high humidity may cause heat illnesses. ADDITIONAL DETAILS Record setting temperatures possible through Wednesday. Tuesday will likely be the hottest day with highs in the mid 90s throughout the urban corridor. ISSUED AT Monday, May 18, 2026 at 2:52 AM EDT ISSUED BY National Weather Service Mount Holly NJ HEADER URGENT - WEATHER MESSAGE # PRECAUTIONARY/PREPAREDNESS ACTIONS -------------------- Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. # AREAS AFFECTED -------------------- Philadelphia, Camden, Delaware, Eastern Montgomery, Gloucester, Lower Bucks, Mercer, Northwestern Burlington Including the cities of Norristown, Cherry Hill, Trenton, Philadelphia, Camden, Glassboro, Moorestown, Doylestown, Morrisville, Mount Holly, Lansdale, and Media

Pollen Index: 9.1 Pollen Level: medium-high Predominant Pollen: Oak, Birch and Maple. Pollen concentrations for Tuesday will be increasing over today's levels in the high range. This forecast of higher pollen concentration is based on strong winds and decreasing humidity.