Pennsylvania – Headlights blur into a gray wall along I-95 as dense February fog chokes visibility to a quarter mile across Philadelphia this morning, forcing drivers to slow down now.
The National Weather Service in Mount Holly has a Dense Fog Advisory in effect until 10 a.m. across much of New Jersey, eastern Pennsylvania, Delaware, and eastern Maryland. Visibility has dropped to 0.25 mile or less in spots. A Code Orange Air Quality Alert also remains in place today for the Philadelphia metro, meaning pollution levels may be unhealthy for sensitive groups.
At Philadelphia International Airport, temperatures sit at 34 degrees with humidity near 97 percent. Wet pavement and calm winds are allowing fog to linger. Expect reduced visibility on I-76, I-676, the Schuylkill Expressway, and the Walt Whitman Bridge through mid-morning. Use low beams and leave extra space between vehicles.
Rain becomes more widespread by afternoon, with highs near 45. Periods of rain continue into tonight as temperatures dip to the upper 30s. Patchy fog may redevelop toward early Thursday.
Thursday stays cloudy with another round of rain likely late. Highs hold in the low 40s. Friday turns wetter, with rain likely and highs near 46. By Saturday, skies brighten and temperatures rebound to near 50, offering a brief taste of early spring warmth.
Late Sunday into Monday, colder air returns. Rain could mix with or change to snow as highs hover near 40. With temperatures near freezing at night, flash freezing becomes a concern where wet roads refreeze. Watch bridges and untreated surfaces.
Looking into next week, longer-range trends point to moderating temperatures and above-normal readings by late week. Spring vibes may begin to build after all.
Five Day Outlook for Philadelphia, PA:
Today: Rain likely after late morning, high near 45.
Thursday: Chance of rain, high near 43.
Friday: Rain likely, high near 46.
Saturday: Partly sunny, high near 50.
Sunday: Rain and snow possible, high near 40.
