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.
While prospects for a white Christmas are grim along the I-95 corridor, many communities from the Great Lakes to the Rockies should enjoy the desired snowy scene for the holiday.
AccuWeather RealFeel® temperatures will be in the 20s through midweek, but a cold front will drop those temperatures into the single digits by the end of the week.
Wet weather will be the theme for Seattle through at least the first part of the week.
Soggy weather will be the rule in the run-up to Christmas in the Atlanta area.
People who are dreaming of a white Christmas across the interior Northwest may see their dreams come true this year as another storm impacts the region.
Biologist Jamie Urqhart discovered dozens of pancakelike saucers floating along Scotland's River Dee.
New York City (1959)
15" of snow.
N. California & Oregon (1964)
Great warm surge and torrential rains on deep snow cover; record floods followed.
Perey, IL (1967)
An F2 tornado carried women and her baby 400 feet; they survived.