As expected, northern California received further cooling on Wednesday, and temperatures are finally back to seasonable levels for mid-July. A few more relatively comfortable days are ahead before the next warming trend. The dominant ridge of high pressure which brought so much hotter than average weather the last couple weeks continues to weaken and get pushed eastward. Tonight will be mostly clear to clear and mild with lows ranging from the 40s and 50s in the mountains to the 50s and 60s in the foothills and valley. Thursday will be mostly sunny to sunny with a little smoke and slightly cooler weather. Highs will range from the 80s in the mountains and foothills to the 90s in the valley.
The weak trough of low pressure from the Pacific responsible for our welcoming cooling trend will give way to the same strong ridge of high pressure late this week through early next week. Although it will start getting hotter again, we will not experience the kind of dangerous heat we had last weekend, and no records will be broken. A little monsoonal moisture will move northward from the Desert Southwest Sunday through next Tuesday, but most of us will only receive a few more clouds, and only isolated rain showers will small amounts of rain are possible for the higher terrain. Valley lows will stay mainly in the seasonable 60s. Valley highs will warm from the lower and mid 90s to near 100 degrees.