Grab your jacket and get ready for a brisk start to your Tuesday in Northern California. Northern California continues to form between high pressure off the coast in the Pacific and sand to our east on Tuesday morning. The low pressure in the Northeast Pacific is being diverted to our north by the effect of a strong high pressure over the southwest. Some thin clouds are rolling in at the top of the ridge off the coast, and we’ll start your Tuesday morning with a thin blanket of clouds. Today there will be some clear for most of the areas, but our high altitude areas will remain partly cloudy. Your Tuesday afternoon will be partly cloudy in the valley and foothills and mostly sunny. There will also be a chance of some misty fog for your morning hours, but it looks like it will remain south of us again this morning. Temperatures in the valley and foothills start in the 30s to 40s, while in mountainous areas drop into the teens at night from the 30s. During the day winds will blow from the north at about 10 mph. This afternoon high temperatures in our mountainous regions are forecast to be in the mid-50s to mid-60s in the valley, around 50 to 60 degrees in the foothills and top into the mid-40s to 50s.
High pressure off the coast and to our east will continue to dominate our weather pattern through your extended forecast. There will be some storm systems that try to nudge northern California through the middle of the week, but the latest models are placing any chance for rain north of us. There will be a possibility of fog throughout the night and early morning from Tuesday night to early Wednesday and from Wednesday night to early Thursday. The skies will be mostly sunny and partly cloudy till the middle of this week, and our temperatures will remain mostly the same till Thursday. High pressure will build up to become more severe on our forecast later this work week, and we won’t have the same effect of wetter systems passing our north. This will result in warm temperatures and sunny to mostly sunny Fridays through your weekend. Areas of the Valley will see lows in the mid-30s to 40s and highs in the mid-60s this weekend and later this week. This weekend and over the weekend the foothills will see low temperatures in the 30s to 40s and highs in the low 50s to 60s. From Friday through the weekend, mountain regions will peak in their teens in their low 30s and 40s to 50s. The latest long-range models are keeping us dry until at least the middle of next week. Temperatures are not expected to be very hot after the weekend, but will remain above average for this time of year.