Philadelphia Weather Forecast: Storms Wednesday, Potential Severe Weather Thursday

Updated on: June 17, 2026 / 7:50 AM EDT / CBS Philadelphia

Wednesday is shaping up to be a relatively quiet weather day in the Philadelphia area, with a turn towards increasing humidity by midday.

As a result, we can expect a spotty shower or thunderstorm, with highs reaching the mid-80s.

A strong cold front is set to bring a potent severe weather threat to the Midwest, where a moderate risk has been issued.

This front is expected to move through our area on Thursday, bringing hot and breezy conditions with highs reaching the 90s.

However, instability may be limited, potentially limiting the severity of any storms that develop.

We're still monitoring the situation, but it's possible that we could see strong to severe storms with heavy rain, gusty winds, and small hail.

The tornado threat appears low, but we'll continue to keep a close eye on the situation.

After Thursday's storms, we may see lingering showers on Friday, but the weekend is shaping up to be beautiful, perfect for the 2026 Men's World Cup Match on Friday and Father's Day on Sunday.

And with summer officially beginning on Sunday, June 21, at 4:24 a.m., we're expecting a warm start to the season.

We've got the latest forecast details below.

Wednesday: Shower chance. High 85, low 63.

Thursday: Severe weather alert. High 93, low 70.

Friday: Clearing, nice for Juneteenth. High 84, low 72.

Saturday: Sunny. High 85, low 66.

Sunday: Sunny. High 87, Low 65.

Monday: Few showers. High 85, low 68.

Tuesday: Partly sunny. High 81, low 66.

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