ABC 10News brings you team coverage of the heat wave's peak throughout San Diego County expected on Thursday. The heat advisories for the inland and mountain areas will last until 8 p.m. Friday, as ...

Northern California's first heat wave of the summer is expected to begin later this week, bringing a stretch of sweltering temperatures above 100 degrees.

Blue whale songs dropped by 40% during and after a major marine heat wave. Scientists say the decline is tied to food loss ...

A heat wave is on the way for Montreal, with at least five consecutive days of high temperatures in the forecast. Montrealers ...

This and the brutally hot temperatures have resulted in most of southern and eastern Ontario being at a high fire danger ...

Once the heat wave passes, there will be slight cooling through the weekend. Parts of the Inland Empire and the valleys are ...

Southern California's heat wave will peak Thursday, bringing triple-digit temperatures to L.A. County. Hotter than normal ...

Whale songs provide key insight into ocean ecology, allowing scientists to make estimations on the prevalence of the species ...

La Mesa schools prepare for extreme heat as students return from summer break while families enjoy final days off.

More than 800 structures are threatened by a massive wildfire in central California that left at least three people injured as it burned through Los Padres National Forest.