Some fog formed overnight after the round of snow showers and freezing drizzle. The fog is dense in places -- in Philadelphia visibility is down to 2.5 miles as of 6 AM but many places have visibilities below 2 miles. The fog should burn off after 8 AM and skies will become mostly sunny.
The high in Philly today will be in the low 40s (42). It'll be near 40 north and west and in the low to mid 40s south and east. There will be a bit of a breeze at times, out of the west-northwest at 10 to 20 mph. Overall, it will be a pretty nice day today. Just watch out for slick spots on the roads this morning since temperatures are still below freezing.