In the wake of the drenching, gusty and disruptive storms through Tuesday, drier air will settle into the Harrisburg, Pennsylvania, area through Thursday.
Some sunshine is forecast for the city and suburbs with lowering humidity Wednesday and Thursday, while downpours still threaten to ruin the day at the beach Wednesday.
The less humid air will set the stage for lower temperatures at night. Lows will dip to unseasonably cool levels in the northern and western suburbs into the end of the week, while record chill holds up over the Midwest.
During the weekend and into next week, humidity levels and eventually temperatures will trend upward. As this happens, the risk of thunderstorms will increase across the region.
As July draws to a close, a storm system swinging up from the Deep South will bring downpours that will break the back of the heat wave in much of the northeastern United States.
A renewed risk of severe weather will threaten portions of the north-central United States into midweek.
Heavy downpours will raise the concern for flash flooding along the Gulf Coast and lower Mississippi Valley through midweek.
A stifling heat wave will remain entrenched across the Northeast much of this week, despite a brief reprieve in humidity for some.
Dangerous heat will surge northward and send temperatures rising across the northwestern United States this week.
Severe thunderstorms rumbled through the Northeast on Monday, lashing the region with damaging winds while also unleashing heavy downpours that triggered flash flooding.
New Jersey (1892)
Spectacular "double" waterspouts off Barneget Light at heights of 500-600 feet.
Toshomingo, OK (1943)
121 degrees -- record high for state.
Houston, TX (1978)
For the second straight day, a lightning bolt struck an oil storage tank. This strike caused a 5 alarm fire.