The National Weather Service reported an air quality alert at 4:30 p.m. on Saturday in effect until Sunday at 4 p.m. for ...

Pittsburgh will hit 90-degrees for the first time in 2025 on Sunday. It will also kick off the first heat wave of the summer.

Ohio and Pennsylvania brace for a heat wave with possible temperatures in the 90s and heat indices up to 104°F.

As the sun rose Saturday on the longest day of the year in the Northern Hemisphere, a crowd erupted in cheers at Stonehenge ...

Heat indices nearing 100-110° at times Sunday June 22nd through Thursday June 26th. Use caution if you have to spend time ...

A significant and extremely dangerous heat wave begins prompting Extreme Heat Warnings to go into effect at 11 AM today. Heat ...

The National Weather Service issued a heat advisory at 2:26 a.m. on Sunday valid from 11 a.m. until Wednesday 8 p.m. for ...

The weather turns much warmer and much more humid throughout the weekend. Partly sunny today, with highs in the mid 80s.

Heat alerts will be in effect across the Philadelphia region starting Sunday as Saturday kicks off a multi-day heat wave.

A significant and extremely dangerous heat wave begins Sunday and continues through Wednesday. Heat index values may exceed ...

Powerful winds — including a tornado — that swept across parts of the upper Midwest left three people dead and a regional ...

Severe thunderstorms that roared across North Dakota late Friday and early Saturday spawned tornadoes that killed three ...