Warmth will hold around Pittsburgh through Monday, but the return of much colder air is on the horizon.
The weekend will end with the warmest air so far this year pouring across southwestern Pennsylvania, boosting temperatures past the 80-degree mark.
Dry weather and some sunshine will compliment the warmth.
Temperatures will still rise well into the 70s on Monday despite some more clouds filtering overhead and a couple of showers and thunderstorms arriving in the afternoon.
Chilly air plunging into the Plains will swing eastward in the upcoming days.
Steadier rain will follow for Monday night in Pittsburgh as the cold blast approaches, leading to a dramatically colder Tuesday.
Tuesday's expected high of 45 F is likely to occur prior to daybreak with temperatures then falling into the 30s. The rain may even mix with or end as wet snow.
Temperatures will drop into the 20s Tuesday night, spelling bad news for those who planted sensitive vegetation early.
More seasonable high temperatures should follow for later in the week.
The weather threatens to interfere with search, rescue and cleanup operations in the wake of the major 7.8-magnitude earthquake that has killed thousands of people with the death toll mounting.
Severe thunderstorms are rumbling across parts of Texas and Oklahoma Sunday evening.
Sunny skies and cooler conditions will be the rule this week in Chicago.
In wake of a chilly Monday with spotty showers, warmer and drier weather will settle in for much of the week ahead.
Temperatures will have their ups and downs across the Northeast this week, starting off on a cool note before milder air moves in for the middle of the week.
Dauphin Island clocked a 57 mph wind gust at the time of the boating incident, according to Mesonet.
Boston, MA (1994)
A 20 degree jump in temperature in just 10 minutes.
Heavy snow caves in several buildings; snow drifts 5 to 6 feet high.
Early heat wave: Washington, DC 95 -- tied April record. New York City, NY 92 Richmond, VA 96 -- tied April record.