Warm weather is in store for the Philadelphia area through Labor Day, but there will also be a few rounds of thunderstorms that may cause some disruptions.
The periodic storms will help to keep a large heat wave at bay over the Central States, where temperatures will surge well into the 90s to near 100 each day through the holiday weekend.
Storms Wednesday midday were causing torrential downpours in some areas from Philadelphia, northward to Allentown. Motorists should expect delays and be alert for sudden low visibility and flash flooding. The storms were drifting slowly eastward into New Jersey.
In the Philadelphia area, the weather pattern the vast majority of the time through Labor Day should be great for late-summer activities such as swimming, ball games and outings.
Temperatures will be in contrast to much of the first three weeks of August, when readings averaged several degrees below normal. Temperatures will average 3 to 5 degrees above normal over the next week or so.
High temperatures most days through the last unofficial weekend of summer will be well into the 80s. Temperatures can reach 90s on a couple of days. Nighttime lows will generally be in the upper 60s to lower 70s.
Humidity levels will be typical of August.
There can be a couple of days where downpours are persistent enough to cause minor flash and urban flooding problems, as well as travel delays at the airport and along the Interstate 95 corridor, Blue Route, Schuylkill Expressway and Pennsylvania Turnpike. A few communities can also be hit with strong, gusty winds that cause sporadic power outages.
After the round of storms Wednesday, additional storms are likely at some point over the Labor Day weekend.
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