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Hazy, Hot, & Humid Wedesday; Showers & T-Storms Overnight

Climate report for Tuesday
Climate report for Tuesday
Scott Derek

It was another warm day across the region, but guess what? This is where we should be for late July! After a low of 70 this morning at Philadelphia International Airport(which is the average low) we reached 88 shortly before 3pm(the average high is 87) with sunshine and fair weather cumulus in the afternoon once we reached our convective temperature(the estimated temperature that the surface must reach in order for clouds to develop). There were a few isolated showers and thunderstorms that popped up to the north and west, but pretty much fell apart once the sun set.

A cold will be approaching from the west on Wednesday, but the rain will hold off until the evening and overnight hours
NOAA

Overnight lows will be in the lower 70s with a partly cloudy sky and even some fog along the shore(lows there will be in the upper 60s and closer to the dewpoint); Wednesday shall be hazy, hot, and humid with highs in the lower 90s and a southwesterly wind. Showers and thunderstorms ahead of a cold front will progress eastward overnight Wednesday with lows in the middle 70s; it shall linger into the first half of Thursday with highs in the middle 80s, but I think we'll clear it out by the evening commute(it better because I'm heading to Baltimore for a weather conference this weekend!).

Friday will be sunny, drier, and pleasant with highs in the lower 80s and the same thing goes for Saturday with highs into the middle 80s; come Sunday we'll get into that warm and humid southerly flow with highs in the upper 80s and approaching 90 as TWO frontal boundaries approach the region. The first front will pass by just to the south, but provide showers and thunderstorms by the afternoon on Sunday and then after a break late overnight into Monday the second and more potent cold front pushes through overnight Monday into Tuesday; behind that front temperatures will be in the middle 80s with much lower humidity.

Now don't forget that you can see the 7-day forecast, follow the radar and satellite loops as well at www.scottderekwx.com/forecast.html.