We had one more final day of sunshine and unseasonable warmth around northern California today. Changes are coming Friday and the changes will involve more clouds, cooler weather, and both rain and snow. Tonight will begin fairly clear, but we can expect increasing clouds through the overnight and morning hours. Lows will continue to range from the 10s and 20s in the mountains to the 30s and 40s in the valley and foothills. Friday will be a mostly cloudy day with areas of light rain and mountain snow moving from west to east across northern California. Most will fall after sunset Friday evening. Highs will be much cooler and more seasonable, ranging from the 40s to the 50s for the mountains, foothills, and valley.
A Pacific storm will be pushing over northern California this weekend, and better chances for rain and snow will arrive Saturday and Sunday. A Winter Weather Advisory is in effect from Friday afternoon through Saturday morning for our area mountains with 3 to 6 inches of snow in the mountains and over 8 to 12 inches possible in the highest peaks. The valley and foothills can expect areas of rain and rain showers from late Friday through Sunday. Most areas will have a break on Monday, with isolated showers still possible next Tuesday through Thursday, although amounts will be much lower. Highs and will be much more seasonable through late next week, ranging from the 30s and 40s in the mountains to 50s in the valley.