After experiencing temperatures more appropriate for early April, much of the Northeast can expect a warming trend and some sunshine this weekend.
The warmup will be good news for folks heading to ball games, amusement parks, beaches and camp grounds.
After a high temperature near 50 F in Boston and afternoon temperatures in the 50s around New York City on Wednesday, 50-degree air settled into Philadelphia and Washington, D.C., on Thursday. The temperatures are 15 to 25 degrees below normal.
Despite the multiple pushes of cool air into the Northeast in the past four weeks, temperatures have averaged between 1 and 3 degrees above normal for the month of May.
The cool air will run its course into the end of the week. With a few exceptions, the extensive area of low clouds, patchy fog and spotty rain over the mid-Atlantic will slowly break up and dissolve.
Temperatures are forecast to reach seasonable levels this weekend from Virginia to Maine. At the end of May and the beginning of June, high temperatures average from near 70 in Boston to the middle 70s in New York City and Pittsburgh, the upper 70s in Philadelphia, and near 80 in Washington, D.C., and Richmond, Virginia.
One potential trouble-maker will be a disturbance dropping southeastward from Canada Friday into Saturday.
According to AccuWeather.com Senior Meteorologist Dave Samuhel, "This system can bring spotty showers and thunderstorms from New England to part of the mid-Atlantic on Saturday; however, the majority of the time this weekend will be free of rain and fine for most outdoor plans."
For New England to New York City and northeastern Pennsylvania, Sunday will be the nicer of the two weekend days.
The weather is expected to be mostly sunny at Dover, Delaware, on Sunday, home to the Monster Mile at Dover International Speedway.
The NASCAR FedEx 400 benefiting Autism Speaks is scheduled for 1:00 p.m. EDT Sunday. Temperatures are forecast to be in the 70s for the race.
For people heading to the beaches, Atlantic surf temperatures range from the chilly middle 50s along Massachusetts to near 70 at the Virginia capes. Exercise caution when venturing into the water when the surf is this chilly.