Much higher temperatures will work their way into central Pennsylvania into the weekend. The warmth will be accompanied by rain at times and areas of dense fog.
Record-challenging warmth is possible on Sunday with temperatures forecast to reach near 60 degrees.
As warmer, more moist air moves in, episodes of fog are possible which could slow travel.
Rain is possible each day Friday through Sunday. While minor flooding in poor drainage areas is possible from melting snow and some rain, the heaviest rain from the storm is forecast to not coincide with melting snow and cause serious flooding locally.
According to AccuWeather.com Long Range Expert Paul Pastelok, "With the anticipated weather now through the end of the month, temperatures for December may average close to normal."
As of Dec. 18, temperatures have averaged 5.0 degrees below the normal of 33.2 degrees for the month to date.
Pastelok expects the weather pattern to erase much of this local temperature deficit by the end of the month with well above-average warmth forecast late this week into the weekend.
"There will still be a few chilly episodes later in the month, but not to the extreme of what we have experienced during late November into early December," Pastelok stated.
The warmup will not mean an end to snowstorms for the upcoming winter.
Tune in to AccuWeather Live Mornings every weekday at 7 a.m. EST. We will be talking about the snowstorm and weather leading up to Christmas.
A tropical wave is likely to become the Atlantic Basin's next tropical storm as it approaches or crosses the Caribbean Sea later this week and potentially pose eventual threats to North America.
Fall air has finally arrived in the northeastern United States and may yield the first frost of the season in parts of the region to end this weekend.
Typhoon Megi will continue to strengthen before threatening lives and property across Taiwan and eastern China this week.
Downpours will not be so quick to depart Texas as other parts of the central United States into Monday, further heightening the risk of flooding.
Wintry weather marked the first days of autumn across parts of the Mountain West as snow mixed in with the changing fall foliage.
Jose Fernandez, pitcher for the Miami Marlins, died in a boating accident in southern Florida early Sunday morning.
Baltimore, MD (1816)
Water froze one-half of an inch thick.
El Cordnazo, CA (1939)
Greatest September rainstorm with 5.42 inches in 24 hours at L.A. Floods killed 45; $2 million damage.
Southern CA (1970)
Record late September heat wave seared Southern CA for a week. L.A. hit 105 degrees; San Diego hit 97 degrees.