This summer, temperatures and humidity have broken records. Here's what research has shown about how our sleep is affected.

The number on the thermometer only tells half the story. Here’s what to know about heat index—and why some scientists are rethinking how it is calculated.

As much of the Eastern U.S. experiences potentially record-breaking daytime temperatures, the nights are also staying ...

The National Weather Service put the majority of Delaware in a Level 4 HeatRisk, or extreme risk, on Friday and Saturday. The ...

Aim to keep basement humidity between 40% and 50% in summer to prevent mold, musty smells, and allergens. Use a hygrometer to monitor humidity, fix drainage or flooding issues, and consider a vapor ...

Delaware will face dangerously high temperatures and heat index values as a heat wave takes hold of the region. The First State is under an extreme heat warning through 8 p.m. on July 4. The state ...

INNOVATIONS THAT HELPED SHAPE OUR NATION. WELL, PETE, WE HAD ANOTHER ACTIVE WEATHER DAY WEEKEND. I MEAN, IT JUST HAS NOT STOPPED. WHAT CAN WE EXPECT TOMORROW? WELL, IT’S WE TALKED ABOUT THIS EARLIER ...

“USA250: The Story of the World’s Greatest Economy” is a yearlong WSJ series examining America’s first 250 years. Read more about it from Editor in Chief Emma Tucker. U.S. cities have a climate ...

Delaware is facing a heat wave this week with dangerously high heat indexes, according to the National Weather Service forecast. New Castle County is under an extreme heat watch starting at noon on ...