While this weekend felt nothing like August, a surge of warmer air is on the way for the Northeast this week.
Fresh cool air from Canada, combined with clouds and showers in some areas, kept temperatures below normal both on Saturday and Sunday.
Warmth will build through the first half of this week as high pressure builds nearby and a flow from the north is turned off.
High temperatures will trend upward through the 80s into the middle of the week from Boston and Syracuse, New York, to New York City, Philadelphia, Pittsburgh. Washington, D.C., is forecast to crack the 90-degree mark.
Prior to the peak of the warmth, the first part of the week will feature plenty of sunshine and low humidity.
Humidity will increase at midweek, leading to higher AccuWeather.com RealFeel® temperatures.
While falling short of being described as extreme heat, some may find the warmth at midweek even more uncomfortable than a typical summer day due to the lack of hot days this summer.
Residents engaging in strenuous labor, sports and the elderly will want to be sure to drink plenty of water to keep hydrated and cool.
The warmth will be perfect for anyone wanting to take a dip in the swimming pool before summer comes to an end, while air conditioners and fans will have to once again be turned on.
Lovers of autumnlike weather will be happy with the news that yet another shot of cooler air will erase the upcoming warmth later in the week.
The same dip in the jet stream ushering in the cooler air should act as a shield protecting the Northeast from direct impact of Tropical Storm Cristobal in the Atlantic. However, rough surf is forecast spread northward as the week progresses.
A snowstorm will threaten Pittsburgh on Monday and Tuesday after a frigid Valentine's Day weekend.
A storm will bring snow and ice that will lead to slippery travel along a 1,500-mile swath from northern Arkansas and Georgia to Maine early next week.
The coldest air of the winter will plunge southward across much of the eastern United States and will feature single-digit and sub-zero temperatures in the Northeast during Valentine's Day weekend.
A blast of arctic air will be accompanied by flurries and even a localized wall of snow in some communities in the Northeast and parts of the Midwest at the start of the Valentine's Day weekend.
Heavy rain will raise the risk of flooding across more than a dozen states in the Southeast on Presidents Day to the East Coast on Tuesday.
The dry, summerlike heat sweeping Southern California will continue through the weekend into early next week.
Great Atlantic Coast Blizzard (1899)
(12th-14th) Boston. . . Storm total of 16 in. Winds gusted to 65 mph at Blue Hill Observatory on the 12th and maintained an average of 50 mph through- out the entire day. 24-36 in. reported of snow just north in vicinity of Beverly. THE BOSTON HERALD declared: "Rarely, if ever, has Boston been so completely snowbound (until Feb. 1978...) as it has been by this blizzard." At the end of the storm depth measured 23 in. in Boston... the greatest depth in 98 years of records from 1871-1969.
Ifrane, Morocco (1935)
-11 degrees - coldest ever in Africa.
Lake Placid, NY (1980)
Finally some snow. Just in time for the opening ceremonies at the Olympic town.