The heat was on over Northern California today. High pressure centered over the Southwest brought sunny skies, well above average temperatures, and dry weather to our entire region this afternoon. Valley areas topped out in the low to mid 90's this afternoon, while foothill and mountain areas ended up in the high 70's to mid 80's. Red Bluff set a new high temperature record for this date with a high of 95 degrees. The previous record was 94 degrees and that was set in 2014. Quincy hit 90 degrees this afternoon, which shattered the previous record of 84 degrees set in 1987. Winds have mostly been out of the Northwest to around 10mph today, but will shift to become out of the South later this evening.
High pressure will be centered to our East on Wednesday and we'll start to see more influence from areas of low pressure tracking through to our North. Clouds are expected to fill into our region through Wednesday afternoon, and temperatures will be several degrees cooler than Tuesday afternoon. We'll also have a slight chance for showers sagging to the South of the Oregon border on Wednesday afternoon and Thursday, but the main wet event will stay well to our North. There will also be a slight chance for thunderstorm activity in the far Northern portions of our region during that time. Temperatures will dip into the low to mid 60's in the valley tonight and will end up back in the mid to high 80's on Wednesday afternoon. Mountain and foothill areas will mostly end up in the mid 70's to low 80's on Wednesday afternoon. South winds will be up to around 10mph.
The cooling trend will continue through Sunday across Northern California. We'll have partly cloudy to mostly sunny skies on Thursday and sunny to mostly sunny skies on Friday. Low temperatures will be dipping back into the 50's for the valley late week and high temperatures will top out in the low 80's on Friday. Foothill and mountain areas will have high temperatures in the 60's to 70's on Friday afternoon. Clouds will be increasing again as we head into your weekend. An area of low pressure centered in the Gulf of Alaska will bring cloudy skies and the chance for light showers to our region through the weekend. The latest models are showing the chance for showers mainly starting late Saturday night and persisting through Sunday. Higher elevations will have the best chance for showers, but some light showers will also be possible in the valley on Sunday. Temperatures will endup at or a little below average for the latter part of your weekend. High pressure will build back into Northern California for the start of next week, and that will bring dry and warmer conditions to the end of your 7 day forecast.