Just when it was starting to feel like the dog days of summer again, fresh cooler and less humid air will settle over the Harrisburg area into the weekend.
The weather will still be warm enough for swimming, but it will be more bearable for those without air conditioning.
After a winter with above-average heating bills from the Midwest to the Northeast, the weather will continue to work toward keeping cooling costs down through the end of July.
While temperatures will climb back into the middle to upper 80s for Saturday, humidity will remain low as dry weather holds. A spike in humidity will return the chance for a thunderstorm on Sunday.
Additional showers and thunderstorms will follow for Monday before yet another dose of Canadian air arrives next week.
AccuWeather.com Senior Meteorologist Kristina Pydynowski contributed to the content of this story.
Tropical Depression Eight could become a tropical storm while brushing the North Carolina coast with rough surf, downpours and locally gusty thunderstorms early this week.
Following several stretches of unseasonable heat in August, September is set to yield lower temperatures across the United Kingdom.
Tropical Depression Nine developed just south of Florida on Sunday and will turn toward the northeastern Gulf Coast of the United States later this week.
Another strong tropical disturbance will move off the coast of Africa early this week and bears watching for strengthening and impact on the Caribbean and the United States during September.
Typhoon Lionrock is poised to make landfall in Japan on Tuesday afternoon local time with heavy rainfall, damaging winds and an inundating storm surge.
Following a stormy weekend across Germany, a period of dry and more seasonable weather is in store this week.
New England (1816)
"Year in which there was no summer", otherwise known to weather historians as "1800 and frozen to death" killing frost once again damages sparse corn corp in northern New England...loss of this and other crops led to severe famine in much of New England that winter...and helped spur western migration in spring of 1817.
New England (1965)
A total of 2.5 inches of snow on top of Mt. Washington set an August record. Vermont had a reading of only 25 degrees, while Nantucket had a chilly 39 degrees. Earliest freeze on record at many stations.
Houston, TX (1980)
2.23 inches of rain fell in less than 1 hour. Streets were flooded in the downtown district and a tornado touched down briefly west of Houston at Sealy, TX.