A push of cooler and less humid air is settling over Philadelphia and the mid-Atlantic for the balance of this week.
Several days of bright sunshine are in store.
The push of Canadian air will end the daily risk of showers and thunderstorms experienced during the holiday weekend, including incidents of flash flooding.
Many people will be able to turn off the fans and air conditioners with temperatures in urban areas dropping well down into the upper 50s and lower 60s at night.
Many suburbs will have night time temperatures dipping toward 50 degrees with lows in the 40s in the coolest spots.
Each day Wednesday through Friday will bring bright sunshine and a cool breeze with highs generally in the middle 70s to near 80 degrees.
The only potential, weather-related travel problem would be patchy early-morning fog for long-distance commuters over the river valleys and perhaps part of southern New Jersey. Some major highways that could be impacted by isolated fog patches include the Turnpikes, the Blue Route and the Schuylkill and Atlantic City expressways.
For those hitting the Jersey shore and the Delaware beaches this week, the afternoons will still be warm enough to swim, but bring a sweatshirt or jacket for the evenings and mornings.
The Bardarbunga volcano began to erupt in Iceland, according to the Icelandic Met Office.
A great white shark was spotted at Duxbury Beach in Massachusetts earlier this week, forcing the evacuation of the water.
It's been a tumultuous week on both the East and West coasts as two hurricanes induced rough surf and a high risk for rip currents.
There is the risk of severe weather, including tornadoes on Sunday from the northern and central Plains to part of the Upper Midwest.
After a brief cooldown late this week, very warm and humid air will bounce back during the Labor Day weekend.
During thunderstorms in Sweden one person was trying to capture the beauty of an intense rainbow when lightning struck nearby.
Sherman Pass, WA (1980)
2 inches of snow.
Pennsylvania & New Jersey (1971)
Tropical Storm Doria caused severe floods in southeastern PA and NJ. Damage estimated at $138 million.
Colorado Springs, CO (1978)
Hail 6 inches deep.