Severe storms threaten Philadelphia region Sunday afternoon. Here's the weather forecast

A cold front is approaching, with a few waves of showers and storms — some which may become severe.

Maps show forecast for extreme heat wave scorching the West

A long-duration heat wave is taking shape over the western half of the U.S. and forecast to stick around in the days ahead.

Major weather threats bring blizzard conditions to U.S. northern tier, early heat wave to the West

A severe weather front has dumped heavy snow on the Upper Midwest, caused thunderstorms in the South and threatens ...

Tornado watch for Delaware Valley expires as storms roll through region. Here's the weather forecast

A tornado watch that was in effect for the Delaware Valley has expired, but the region remains on alert for moderate to heavy ...