7:00 AM | **Unusually cool today and still quite unsettled with a stiff wind and occasional showers**

6-Day forecast for the Philadelphia, PA metro region

Today

Mainly cloudy, windy, unseasonably cool, occasional showers, highs in the low-to-mid 50’s (normal high at PHL is 70 degrees); W-SW winds around 10-20 mph, gusts possible to 30 mph

Tonight

Mainly cloudy, windy, chilly, chance of showers, lows in the lower 40’s

Wednesday

Mainly cloudy, breezy, unseasonably cool, chance of showers, maybe a thunderstorm, low-to-mid 50’s for afternoon highs

Wednesday Night             

Mainly cloudy, chilly, breezy, occasional showers, maybe a thunderstorm, near 40 degrees for late night lows

Thursday

Partly sunny, breezy, cool, chance of showers, upper 50’s

Friday

Mainly sunny, breezy, cool, maybe a shower, near 60 degrees

Saturday

Mainly sunny, mild, mid-to-upper 60’s

Sunday

Mainly sunny, nice, near 70 degrees

Discussion              

An unusually cool air mass for early May has engulfed much of the northeastern quadrant of the nation and it’ll stick around for a few more days.  The Great Lakes, Midwest, Mid-Atlantic and Northeast US will be stuck with well below-normal temperatures through much of the remainder of the week with a deep upper-level low pressure system spinning around overhead.  With cold air aloft, any daytime heating early in the day will quickly result in destabilization of the atmosphere leading to clouds and scattered rain showers. The air is cold enough that some higher-elevation interior locations of the Mid-Atlantic and Northeast US can even experience ice pellets (graupel) and/or snowflakes mixed in with the rain during the next couple of days. The weather gets quieter and milder at the end of the week.    

Meteorologist Paul Dorian
Arcfield Weather