7:00 AM | **Heat wave breaks today with arrival of front…possible strong-to-severe thunderstorms…below-normal temperatures on Tuesday** — Arcfield Weather

6-Day forecast for the Philadelphia, Pennsylvania metro region

Today

Mainly cloudy, not quite as hot, but still very humid, breezy, good chance of PM showers and thunderstorms, some of the storms can be strong-to-severe, highs near 90 degrees (normal high at PHL is 88 degrees); SW winds at 10-20 mph

Tonight

Mainly cloudy, mild, good chance of evening showers and thunderstorms, some of the storms can be strong-to-severe, lows in the upper 60’s

Tuesday

Partly sunny, much more comfortable with below-normal temperatures, lower 80’s for afternoon highs

Tuesday Night             

Mainly cloudy, mild, chance of showers and thunderstorms, mid-to-upper 60’s for late night lows           

Wednesday

Partly sunny, warm, chance of showers and thunderstorms, mid 80’s

Thursday

Partly sunny, quite warm, chance of showers and thunderstorms, upper 80’s

Friday

Partly sunny, warm, chance of showers and thunderstorms, mid-to-upper 80’s

Saturday

Mainly sunny, comfortably warm, low-to-mid 80’s

Discussion    

The first extended heat wave of the summer in the Mid-Atlantic region will break today with the arrival of a frontal system that will generate showers and perhaps a strong-to-severe thunderstorm or two. It’ll remain pretty hot today though not as excessive as the past weekend and it’ll continue to be very humid and quite breezy. Much more comfortable air will arrive in the region by tomorrow with temperatures likely confined to the lower 80’s for highs on Tuesday afternoon…actually below-normal for this time of year. The front stalls out nearby on Tuesday and its proximity for the remainder of the week will keep it quite unsettled here to go along with seasonal temperatures. One final note, the high temperatures for Saturday and Sunday in the I-95 corridor were as follows: Philly: 98/99 degrees, DCA: 96/94 degrees, Central Park (NYC): 95/95 degrees and LaGuardia Apt. (NYC): 97/98 degrees.

Meteorologist Paul Dorian
Arcfield Weather