HAPPINESS
IS A WARM CUP
March 18, 2026 4:05 pm
Southern California Overview:
- Well above average conditions will continue through the end of the week. Some cooling is expected through the weekend into early next week, but temperatures will remain above average. Marine layer low clouds and fog will be largely absent from the coast this week, potentially returning by late this weekend.
- An anomalously early and record-breaking heatwave continues to intensify across the western U.S. and expand east into the Great Plains. Wet weather continues for western Washington; wintry mix expected across the Upper Midwest/Great Lakes to the Interior Northeast. Critical Risk of fire weather across portions of the central and northern High Plains.