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Extreme Heat Watch Issued by NWS Mount Holly NJ for Coastal Areas

June 29, 2026 · wweather1 editorial · 2 min read

The National Weather Service (NWS) Mount Holly NJ has issued an Extreme Heat Watch for Atlantic Coastal Cape May, Coastal Atlantic, and Coastal Ocean Counties. Dangerously hot conditions, with heat index values potentially reaching up to 105 degrees, are expected from Thursday afternoon through Saturday evening.

An Extreme Heat Watch has been issued by the National Weather Service (NWS) Mount Holly NJ. The watch is in effect for Atlantic Coastal Cape May, Coastal Atlantic, and Coastal Ocean Counties. It was issued on June 29 at 2:46 AM EDT and remains in effect until July 4 at 8:00 PM EDT.

Dangerously hot conditions are anticipated, with heat index values potentially reaching up to 105 degrees during daytime hours. These conditions are expected to begin Thursday afternoon, July 2, 2026, and continue through Saturday evening, July 4, 2026.

The NWS warns that heat-related illnesses increase significantly during events with extreme heat and high humidity. Very warm low temperatures, expected to be in the low to mid-70s at night, will offer little relief from the heat. Multiple days of near-record-breaking temperatures are also anticipated, which will exacerbate the impacts from the heat and humidity.

Why it is dangerous and what to do

⚠️ Safety
• Drink plenty of fluids.
• Stay in an air-conditioned room and out of the sun.
• Check up on relatives and neighbors.
• Avoid leaving young children and pets in unattended vehicles.
📊 The numbers, from wweather1 data
Atlantic City: now +25°, Clear.
That is 2° above the June climate norm.
The record for this date is +34° (1959).
Three-day forecast: 29 June: +26°/+19° · 30 June: +24°/+19° · 1 July: +30°/+19°
The figures are computed automatically from the Open-Meteo/ERA5 archive — no eyeball estimates.

🌍 Weather in nearby cities

📰 Data source: NWS. Forecast and analysis — wweather1, based on Open-Meteo / met.no data.

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