The heat is on through the next few days across Northern California and the Excessive Heat Warning is set to stay in effect through 7pm on Thursday evening. High pressure centered to our South is the main driving factor in our forecast and will continue to be through Friday. We did have some clouds brushing through our region from an area of low pressure to our North, but that has had minimal impacts on our temperatures this afternoon. Valley areas topped out in the mid 90's to triple digits, foothill areas ended up in the 80's to low 90's, and mountian areas mostly ended up in the 80's this afternoon. Winds have been modest and out of the Southwest today.
Sunny skies and hotter temperatures are expected for your Wednesday and Thursday. Valley areas will be starting out in the hgh 60's to low 70's and are projected to end up in the 99 to 105 degree range over the next 2 days. Foothill areas will dip into the 60's to low 70's overnight and will top out in the high 80's to mid 90's on Wednesday and Thursday. Mountain areas can expect low temperatures in the 50's and high temperatures in the 80's to low 90's for the next 2 days. Winds will be out of the Northwest to around 10mph on Wednesday, but will shift to become out of the South to 10mph on Thursday. We are not expecting much in the way of relief from the Delta Breeze, but areas to our South may see a slight drop in temperatures compared to Wednesday.
We'll finally have a slight change of pace on the way for your Friday, but temperatures will be staying hot. Clouds will be moving into our region from the South as an area of low pressure tracks North along the California Coast. Most of us will have partly cloudy skies on Friday, and there is a slight chance for some showers and thunderstorm activity in the mountains during the afternoon and evening. The main threat of active weather is expected to be to our South on Friday, but there is enough of a chance for us that it is worth mentioning. Temperatures will mostly end up in the mid high 90's in the valley on Friday, while foothill and mountian areas top out in the 80's to low 90's.
The low pressure tracking up along the coast will be bringing a big drop in temperatures, and the potential for active weather to Northern California this weekend. Valley temperatures are projected to drop into the mid 70's to low 80's, while foothill and mountain areas end up in the 60's to low 70's on Saturday and Sunday. Showers and thunderstorms are starting to look more likely for your Saturday forecast, with the biggest threat expected in higher elevations. There will also be a chance for thunderstorms in the valley. Precipitation totals are not expected to be very impressive and there will be a chance for dry lightning. We'll be staying partly cloudy on Sunday and will have a slight chance for showers. The best chance for showers on Sunday will be in our Northern zones.
Another wet system moving in from the Pacific will keep temperatures below average and will bring the chance for more showers to our region early next week.