Pennsylvania wakes to sharp, biting air that rattles bare branches and numbs hands fast.
Breath clouds instantly, and metal railings feel unforgiving across the Philadelphia region.
According to the National Weather Service in Mount Holly, a Cold Weather Advisory remains in effect until 10 a.m. Wind chill values have fallen as low as 9 degrees below zero across parts of southeast Pennsylvania and New Jersey.
Air temperatures sit near 12°F this morning, while steady northwest winds deepen the chill. Side streets crunch under frozen residue. Bus stops and rail platforms feel especially harsh during longer waits.
Meteorologists warn that hypothermia can develop quickly without proper protection. Residents are urged to dress in layers, wear hats and gloves, and limit time outdoors. Pets should remain inside. Officials also stress heater safety, warning against indoor use of generators or grills.
Conditions slowly ease later today. Skies brighten, and highs recover into the upper 20s. Winds relax slightly, reducing cold stress by afternoon. Still, shaded areas may stay icy, especially where melting refreezes quickly.
Attention then shifts to midweek February weather. By Tuesday night into Wednesday, clouds thicken with a chance of light rain, possibly mixing with snow in colder pockets. Even minor precipitation could create slick roads, especially after sunset when temperatures dip toward freezing.
Drivers should remain cautious on untreated streets, bridges, and ramps. Flash freezing becomes more likely this time of year as daytime melting refreezes after dark.
Looking ahead, a gradual warming trend develops late week. From Thursday through Saturday, highs rise into the mid to upper 30s. Early signals in the 6–10 day outlook suggest above-normal temperatures next week, hinting at a slow late-winter thaw.
Five-Day Outlook for Philadelphia:
- Today: Increasing clouds, high near 28°F
- Tuesday: Mostly cloudy, high near 38°F
- Wednesday: Partly sunny, high near 39°F
- Thursday: Partly sunny, high near 35°F
- Friday: Sunny, high near 35°F


