AccuWeather: Tracking our first heat wave in the Philadelphia region

Karen Rogers Image
Monday, May 18, 2026 10:20AM
AccuWeather: Hot and humid start to the week in the Philadelphia region

PHILADELPHIA (WPVI) -- Temperatures rise into the 90s today and likely stay there the next 3 days.

MONDAY: Sunny, hot and humid, high 95. This would break the record of 94 set back in 1962.

TUESDAY: Record-tying warmth with sunny skies, high 97. This would tie the record of 97 set back in 1962.

An isolated shower or storm can't be ruled out through the afternoon/evening mainly northwest of I-95.

WEDNESDAY: Hot and very humid, high 96. With a cold front approaching from the west we'll watch for scattered showers and storms.

THURSDAY: A few showers early may linger well south of the city. Otherwise, it's much cooler with breaks of sun, high 67.

FRIDAY: Easterly wind helps lock in more clouds than sun, high 64.

SATURDAY: Mostly cloudy with showers possible, high 63.

SUNDAY: Mostly cloudy with showers possible, high 67.

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