It began to heat up again today over northern California as a ridge of high pressure began taking control of our weather pattern again. Air quality has gotten much worse for the north valley due to the Caldwell Fire along with the Gold Fire and Hog Fire. Tonight will be a mostly clear to clear night with some areas of smoke. Lows will range from the 50s in the mountains to the 60s in the foothills and valley. Saturday will be a mostly sunny and hotter day with weaker wind but some more areas of lingering smoke. Highs will range from the upper 80s and lower 90s in the mountains to the 90s and lower 100s in the foothills and the valley.
We will have more sunshine, heat and a little smoke in our sky on Sunday before our weather pattern changes during the last week of July. Most areas will reach their peak heat on Sunday before a disturbance moves over our region on Monday. That will bring a slight chance for showers and thunderstorms in far northern California, and a Fire Weather Watch has been issued for Monday because of it. Another trough of low pressure will approach next week, and it will bring more breezes and a cooling trend to slightly below average for late July. Highs will range from the 80s and 90s in the mountains to the 90s and 100s in the valley.