HAPPINESS
IS A WARM CUP
December 31, 2025 5:49 pm
Southern California Overview:
- A low pressure system will bring cloudy skies and periods of rain and showers through Thursday, with chances for thunderstorms tonight through Thursday. The heaviest rain will likely fall late tonight through Thursday morning. A period of drier weather will occur on Friday. A series of weak but colder weather systems will bring more chances for light showers to occur over the region for this weekend into early next week.
- Heavy lake-effect snow will be reinforced by an Alberta clipper heading into the new year along with the likelihood of snow squalls from the Ohio Valley to Pennsylvania and western New York. Rain associated with an anomalous low pressure system from the tropical latitudes is forecast to bring the threat of flash flooding for southern California tonight into New Year's Day. Arctic air will be reinforced across the Upper Midwest, Great Lakes and the Northeast while a quick warm-up emerges across the Great Plains.