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.
In the Philadelphia area, the weather pattern should be great most of the time for late-summer activities such as swimming, ball games and outings.
Humidity levels will increase through the middle of this week, but will then ease back a bit during the last part of the week.
The pattern will be in contrast to much of the first three weeks of August, when temperatures 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.
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 I-95 corridor, Blue Route, Schuylkill Expressway and Turnpike. A few communities can also be hit with strong, gusty winds that cause sporadic power outages.
A couple of rounds of storms can occur from late Monday into Wednesday. Another episode or two is likely to occur at some point over the Labor Day weekend.