If you’re planning to head outside in the next 48 hours, stop what you’re doing and read this first. The National Weather Service has issued a Heat Advisory in effect through 8 p.m. Thursday, and it’s not just about sweating through your clothes — it’s about staying safe as the heat and humidity crank up to dangerous levels across Philadelphia and Camden.
Temperatures are expected to climb to the low 90s, but with humidity levels soaring, it will feel even hotter — like a wet blanket you can’t escape from. On top of that, strong afternoon thunderstorms are expected, potentially bringing damaging winds, heavy downpours, and even hail, making conditions hazardous both before and after sunset.
Why This Heat Is More Dangerous Than It Looks
While 90-degree temperatures might seem like a typical summer day, the real danger comes from what’s happening with that heat. The air is thick and heavy with moisture, which traps body heat and slows down your body’s ability to cool itself. This leads to a much higher risk of heat exhaustion or heat stroke, especially if you’re working, exercising, or even walking outdoors during the afternoon hours.
This advisory isn’t just a formality — it’s a warning that conditions are severe enough to impact your health and safety. The risk is highest during the late afternoon and early evening, when the sun is most intense and the air is at its stickiest.
But Wait, There’s More: Thunderstorms Are on the Way
Just when you think you’ve got the heat under control, Thursday afternoon could bring a round of severe thunderstorms. These storms won’t just cool things down — they may come with damaging winds, hail, and flash flooding. That means the heat won’t be your only concern. Power outages, downed trees, and flooded streets are all possible as the weather pattern grows increasingly unstable.
And here’s the twist — once the storms roll out, the heat isn’t done. In fact, it’s just getting started. The weekend and early next week are expected to be even hotter, with temperatures climbing toward the mid-to-upper 90s, making this week potentially the hottest stretch of 2025 so far.
How to Stay Safe and Beat the Heat
Here’s how to protect yourself and others during this advisory:
Hydrate constantly. Don’t wait until you feel thirsty — by then, it’s too late.
Avoid the midday sun. If you have to be outdoors, aim for early morning or after 7 p.m.
Wear light-colored, breathable clothing that reflects heat instead of absorbing it.
Take frequent breaks in air-conditioned spaces or shady spots.
Never leave children or pets in cars, even for a few minutes. Inside temps can rise 20 degrees in 10 minutes.
Know the signs of heat exhaustion: dizziness, nausea, rapid heartbeat, muscle cramps, and confusion. If symptoms appear, move to a cool place immediately and get medical help.
Final Thoughts: This Isn’t Just Summer — It’s a Serious Risk
This isn’t just “hot weather.” This is a potentially dangerous weather pattern made worse by storms and extreme humidity. With conditions expected to intensify heading into the weekend, this is the time to be hyper-aware of your environment, your health, and your loved ones.
Take this heat seriously — plan ahead, stay hydrated, and look out for those who may be at higher risk. These next few days could be more than just uncomfortable. They could be life-threatening.
