6:30 AM | **Big changes here this weekend with the influx of a much cooler air mass** — Arcfield Weather

6-Day forecast for the Philadelphia, PA metro region

Today

Mainly cloudy skies with some patchy fog early, warm, chance of showers, highs in the mid 70’s; S-SE winds around 5-10 mph

Tonight

Mainly cloudy, cool, occasional showers likely, maybe some patchy fog, lows not far from 60 degrees

Saturday

Mainly cloudy, cooler, occasional showers likely, maybe a thunderstorm, mid-to-upper 60’s for afternoon highs

Saturday Night             

Becoming windy and colder with clearing skies, mid 40’s for late night lows

Sunday

Windy and chilly with sun early and clouds late, upper 50’s for afternoon highs

Monday

Mainly sunny, still quite cool, upper 50’s

Tuesday

Partly sunny, cool, lower 60’s

Wednesday

Mainly sunny, cool, low-to-mid 60’s

Discussion              

Big changes are on the way this weekend with the influx of a much cooler air mass that had its origins up in northern Canada. A strong cold front will pass through the area on Saturday and winds will pick up noticeably by tomorrow night from a northwesterly direction. Winds will remain an important factor on Sunday as the overall pressure gradient field tightens across the northeastern states as the remnants of Tropical Storm Philippe invigorates this incoming upper-level trough system. Temperatures on Sunday are likely to be confined to the upper 50’s for afternoon highs and the stiff NW wind will make it feel even colder than the actual air temperature. Cooler-than-normal weather is likely to persist for much of next week in the Mid-Atlantic region.

Meteorologist Paul Dorian
Arcfield Weather