WHAT TO KNOW
Overnight hours will consist of partly cloudy skies, light wind and temperatures in the low to mid-60s.
Humidity remains with us into the new week, although Monday will offer the most comfortable conditions with sunshine, seasonable temperatures and slightly lower humidity. Tuesday becomes a touch warmer and more humid before a significant pattern change arrives.
Forecast confidence continues to increase that dangerous heat will overspread Long Island beginning Wednesday and continue into the Fourth of July holiday weekend. Afternoon temperatures could challenge or even break daily records, while heat index values may climb into the low to mid-100s Thursday and Friday.
The heat and humidity may also fuel scattered afternoon and evening thunderstorms Friday and again on Independence Day. While not everyone will see rain, any storm that develops could produce heavy downpours, gusty winds and dangerous lightning.
Residents should prepare now for prolonged heat by staying hydrated, limiting strenuous outdoor activities during peak heating, checking on vulnerable neighbors and ensuring access to air conditioning whenever possible.




