 Fire incident management teams have been mobilized across the state in advance of the expected hot weather and thunderstorms that could spark more fires. Northern California will be cooler today with a delta breeze keeping temperatures down, reaching highs in the lower 90s. Temperatures will rise Wednesday, though, and by the weekend, highs will range from 100 to 106 degrees, impacting outdoor activities and travel. According to the National Weather Service, increased winds with the delta breeze could lead to a wildfire's rapid growth.