Fireflies face numerous threats contributing to their decline, but this summer's humid nights have them out in force across ...

Fireflies face numerous threats contributing to their decline, but this summer's humid nights have them out in force in some ...

The start of July will be hot for Northern California, and the Sierra could expect another round of thunderstorms.

Some much-needed relief has arrived in the Northeast after a dangerous, dayslong heat dome sent temperatures soaring into ...

About 600 miles off the west coast of Africa, large clusters of thunderstorms begin organizing into tropical storms every ...

Storms and flash floods are possible early in the week. Here's a look at what's in the forecast for the Fourth of July.

Learn 7 life-saving heat safety tips including proper hydration, cooling techniques, and warning signs of heat-related illness during extreme summer temperature ...

High heat holds on with high pressure in control today, and we could potentially see several triple-digit temperature ...