The mosquito population is growing. Is climate change to blame? NBC10 First Alert Weather meteorologist Krystal Klei speaks to an expert.
A tornado touched down in Lancaster County, Pennsylvania, Sunday night, the National Weather Service confirmed.
A possible tornado as well as heavy rain, lightning and wind slammed parts of Pennsylvania Sunday night.
The NBC10 and Telemundo62 First Alert Weather team taught thousands of students some unforgettable lessons during Weather Education Day. The eager children filled seats in the Phillies' home stadium for the...
We have a mixed bag of springlike weather this weekend with mostly clear conditions Saturday and rain Sunday.
Leo Dignam, the director of the Blue Cross Broad Street Run, has some tips for runners who will find themselves in the rain this morning.
NBC10 First Alert Weather meteorologist Bill Henley takes his traveling bus stop tour to North Wales in Montgomery County.
The NBC10 First Alert Weather team has lifted its First Alert after steady, sometimes heavy, rain moved over the Philadelphia region and created flooding threats.
NBC10 meteorologist Bill Henley is speaking with parents and students at a bus stop in Fairfax, New Castle County, Delaware.
Cyclone Fani tore through India's eastern coast on Friday as a grade 5 storm, lashing beaches with rain and wind gusting up to 127 miles per hour and affecting weather as far away as Mount Everest.
Rain or shine, our weather forecast gets delivered to your in-box everyday.
Upload your photos & videos »
More Weather News »