Philadelphia, PA — Colder air has settled back into the Philadelphia region Saturday, bringing a crisp start to the weekend before Christmas, though a modest warmup is expected by Sunday.
According to the National Weather Service in Philadelphia/Mount Holly, Saturday, December 20, will feature high temperatures in the upper 30s to low 40s, with Philadelphia expected to reach around 38 degrees. Skies will be partly cloudy, and winds will be much lighter than recent days, offering calmer conditions despite the chill.
Forecasters say temperatures have dipped back below seasonal averages, marking a noticeable change from earlier warmth. While Saturday remains cool, conditions are expected to improve slightly on Sunday, December 21.
On Sunday, temperatures will rebound by about 5 degrees, with highs climbing into the low to mid-40s across much of southeastern Pennsylvania and southern New Jersey. Winds will turn west to northwest and become breezier, with gusts near 25 miles per hour possible during the afternoon.
Looking ahead to early next week, the National Weather Service is monitoring the next weather system expected Monday night into Tuesday morning. Forecast models indicate a 30 to 50 percent chance of precipitation, with rain or snow both possible, depending on timing and temperatures. At this time, any snowfall accumulation is expected to be light, but forecasters caution that details could change.
With holiday travel increasing, residents are encouraged to stay informed as forecast updates continue. Even light snow or rain could impact overnight or early morning travel early next week.
Overall, the Philadelphia area will see a typical late-December pattern—cool today, slightly milder Sunday, and an unsettled period possible as Christmas approaches.
