Pennsylvania greets the morning with crisp air, quiet streets, and a chill that hints at change.
Cold pavement reflects early headlights, and winter is clearly settling in.
According to the National Weather Service in Philadelphia, a multi-day weather pattern will evolve through Christmas and into the busy post-holiday travel window. The most important impacts arrive late Friday into Saturday, when winter weather becomes more likely.
Temperatures start mild for late December, climbing into the mid-40s early. That warmth will not last. Colder air slides in behind a passing system, setting the stage for mixed precipitation. By Christmas Day, light rain may briefly mix with snow, mainly during the late morning and afternoon. Accumulation remains limited, but timing could slow holiday errands.
Meteorologists are now tracking a stronger system approaching Friday. Moisture increases during the day, with precipitation likely by afternoon. As colder air filters in, rain transitions to snow during the evening. Sleet and freezing rain may briefly mix in, especially after dark.
Conditions may deteriorate quickly. Temperatures fall toward the upper 20s, allowing wet roads to freeze. Flash freezing is a concern where daytime moisture lingers. Bridges, overpasses, and untreated streets could become slick.
Saturday brings lingering wintry weather. Snow and a rain-snow mix may continue through the morning before tapering off. Even light snow could create slushy travel conditions, especially during post-Christmas trips. Plan extra time if driving, and reduce speed during heavier bursts.
To be fair, this is not a major snowstorm. Still, small changes in temperature could significantly affect road safety. Winter often delivers its impacts quietly.
5-Day Outlook for Philadelphia, PA:
- Today: Sunny, breezy, high near 45
- Christmas Day: Slight rain/snow chance, high near 46
- Thursday: Mostly cloudy, colder, high near 33
- Friday: Snow likely late, high near 33
- Saturday: Wintry mix early, high near 37
