Northern California Faces Heat Wave, Cooling Trend Expected by Weekend
Northern California is currently experiencing a heat wave, with temperatures in the valley exceeding 100°F (37.8°C) on Wednesday, marking the peak of the heat. A heat advisory is in effect for parts of the valley and surrounding foothills through Thursday evening. On Thursday, temperatures will slightly decrease but remain high, ranging from the upper 90s to around 100°F (37.8°C). By Friday, a cooling trend will begin, with temperatures dropping into the 90s, and by the weekend, daytime highs are expected to fall into the 80s. Meanwhile, remnant moisture from former Hurricane Marie is moving into the region, increasing cloud cover tonight and Thursday, though dry conditions are expected to persist. The North Coast will see a return of onshore flow, bringing cooler temperatures and localized fog, while the mountains face elevated fire danger due to low humidity and gusty winds.