A dry weekend will follow the midweek's unsettled weather around Pittsburgh.
Warm and humid air that moved in recently will be slow to leave, despite an impressive push of cool air farther to the east over the mid-Atlantic.
Spotty showers are possible on Thursday.
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Late in the week the moisture will be squeezed to the south and west as cooler air mixes in from the north and east.
The result will be a reduction in not only shower activity, but also lower humidity levels that should carry through the coming weekend.
Showers and drenching thunderstorms will return on Tuesday as the warmth hangs on and humidity increases.
After temperatures briefly climb to typical midsummer levels, another cooldown will roll into the Midwest and expand to the East for the last part of July.
A cold front pushing through the Southeast will bring the risk of severe weather to part of the region Thursday.
Tropical Depression Two has lost its battle to become the next Atlantic tropical storm, but it will still increase shower activity across the Caribbean to end the week.
A potent storm system moving out of the Northwest United States will bring an elevated risk of tornadoes to parts of Alberta and Saskatchewan on Thursday.
Severe thunderstorms that blasted areas of Arkansas with damaging winds and heavy rainfall will continue to race through eastern Texas.
As California continues to be plagued by intense drought conditions, some surfers are reaping what may be one of very few benefits to such a dry season.