As temperatures top the 90-degree Fahrenheit mark at midweek, showers and locally severe thunderstorms will crash through the Philadelphia area.
How hot it gets Wednesday will depend on the amount of sunshine versus the amount of clouds and storms that come cascading in from the Great Lakes.
There is the potential for some communities to be hit hard with strong wind gusts, torrential downpours and frequent lightning strikes during the afternoon and evening hours.
Highs will be well into the 90s Wednesday. However, the high humidity accompanying the heat will push AccuWeather RealFeel® temperatures to near 100 in the afternoon.
The temperature reached 93 Tuesday at Philadelphia and set a new high temperature mark for the year so far. The latest Philadelphia has hit 90 in the summer season was on July 14, 1972. On average the first 90-degree temperature occurs during late May.
Cooler and less humid air will push southward from Eastern Canada late this week.
Current indications are there will be enough southward push to drive away showers and thunderstorms for a brief time. However, as this push backs off over the weekend, showers and storms are likely to return.
Limit your outdoor activities and seek shade or air conditioning when possible during the peak of the heat. Keep hydrated by drinking plenty of water.
A brief warmup is in store for residents of the Northeast this weekend before more fall-like conditions return.
A search for a sheriff's deputy in Austin, Texas, will continue Friday, after she called for help as she was trapped in flood waters.
Odile and other weather systems will bring both dangerous flooding and drought-busting rain in parts of Texas and the southern Plains.
The peak of hurricane season, among other things, arrives in the fall.
Following a bout of stormy weather that has lingered through the week, drier and more tranquil weather will move into the Atlanta area for the weekend.
Chicago is facing a mostly clear weekend with the threat of some disruptive thunderstorms on Saturday.
Central U.S. (1991)
Record Cold Location Temp Old Record Huron, S.D. 23 24/1896 Dickinson, N.D. 25 30/1957 Lubbock, Texas 42 44/1971 Grand Island, Neb. 27 32/1938 Kansas City, Mo. 33 47/1979 Chicago, Ill. 40 41/1873
Honolulu, HI (1994)
95 degrees - all time record high.
Tennant, CA ()
5.5 inches of snow.