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Philadelphia Weather: July 4th weekend starts off tranquil before stormy end

NEXT Weather: Hazy and warming up
NEXT Weather: Hazy and warming up 02:32

PHILADELPHIA (CBS) -- There is still some visible haze over our skies Saturday, but our air quality ratings are getting better into moderate. Some spots are still seeing air quality that is unhealthy for sensitive groups.

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Air quality index readings as of 9:30 a.m. Saturday. CBS News Philadelphia

Delaware is in a Code Orange for air quality Saturday.

The weekend looks to start off pretty tranquil as well, with a mix of sun and clouds Saturday. Again, while we can't rule out a stray shower far northwest, most of us will see sunshine and highs in the 80s, with an uptick in the muggy factor.

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Most of our region is under a "slight" risk for severe weather Sunday, but points north are only under a "marginal" risk. CBS News Philadelphia

There may be isolated showers overnight into Sunday, and then the humidity increases further.  

Sunday and Monday bring the best chances for rain as humidity really ramps up and dewpoints climb into the 70s.  

Rain out over the midwest is bringing enhahnced risk of severe weather, and some of our region could see a slight or marginal chance of severe storms Sunday afternoon. Downpours could impact outdoor activities, so plan accordingly.

It's not a guarantee that you get the storms, but if you do, they may produce some damaging winds, hail and then clear out Monday before potentially another round of storms, mainly in the late afternoon and evening.

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Tuesday, the 4th, looks really nice. A little on the hot side, but pleasant.

It's now trending dry and warm for Tuesday, which is great news for any parades or picnics. But it'll be hot, with highs approaching 90.

We've only had one 90-degree day this year so far, and if we make it to July 4 without any more 90s, it'll be the fewest 90 degree days since 1982 for that span.

However, the cooler-than-average conditions won't last forever - we will likely head to the 90s by the middle of next week.

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