The return of wet weather midweek to Philadelphia will persist into the latter part of the week, and it will be accompanied by cooler conditions after a brief spike in humidity.
Dangerous lightning will accompany the rain on occasion, and unfortunately, this means the potential for more weather-related disruptions to outdoor activities.
Temperatures will be as high as the upper 70s by Thursday, then cool into the lower 70s by Friday.
The risk for showers and thunderstorms could linger into Saturday as the Memorial Day weekend begins.
Sunshine and drier weather will return for the latter half of the long weekend, which will translate to higher temperatures.
Highs will be in the upper 70s on Sunday and close to 80 degrees on Memorial Day.
After a wet September, drier weather will finally arrive in Florida for the new month.
Fall air will erase the record warmth that has been gripping the Northeast, while chilly air is set to charge into the Midwest by week's end.
Locally damaging thunderstorms and flooding downpours may travel across a thousand-mile stretch of the nation through the balance of the week.
Residents of Japan are facing another tropical threat from strengthening Typhoon Phanfone.
Hundreds of colorful hot air balloons will dot the blue skies above Albuquerque, New Mexico, this weekend as the 43rd annual Albuquerque Balloon Fiesta begins.
With the United States stretching across such a vast mass of land, the varying landscape offers diverse weather phenomena in every corner of the country.
Louisiana Bayou County (1893)
Hurricane generated storm wave - killed 2,000. 12-foot tides; central pressure 970 mb; 100+ mph winds.
Two-day Deluge of Rain Table Rock, SC 7.01 inches Anderson, SC 5.44 inches Highlands, NC 9.91 inches Atlanta, GA 5.85 inches Athens, GA 9.03 inches
Yuma, AZ (1990)
A total of one inch of rain in 15 minutes with hail one inch in diameter.