Be prepared for another day of hot temperatures and poor air quality. Air quality is starting out in the unhealthy to very unhealthy range across northern California this morning, but some improvement is possible as north winds pick up this afternoon. High pressure centered over the West Coast will continue to be the dominant feature in our forecast, and will result in hot temperatures and dry conditions. The smoke overhead will likely keep high temperatures lower than what's projected for this afternoon, so I have shaved off a few degrees for most of our forecast area. Skies are clear this morning as far as clouds go, but the region is still blanketed in smoke early today. Temperatures are starting out in the 50's to 60's in the valley, 60's to 70's in the foothills, and mountain areas range from the upper 30's to 50's this morning. Most mountain areas will end up in the 40's early today. Winds are out of the northeast to around 10mph early today, and most of us will continue to see north to northwest winds to 10mph this afternoon. Humidity is projected to dip into the 9 to 25 percent range, which is slightly higher than yesterday but still lower than what we'd like to see. High temperatures are projected to end up in the 92 to 100 degree range in the valley this afternoon, while foothill and mountain areas mostly top out in the mid 80's to mid 90's. The warmest mountain areas will be in areas to the northwest where smoke is not as abundant. Fire danger will stay high today with the hot and very dry conditions.
High pressure continues to dominate or forecast through at least Friday. This will keep temperatures well above average, but impacts from the smoke on our temperatures is making the forecast a little tricky. I've kept valley areas in the mid 90's to low triple digits through Friday, and mountain and foothill areas in the 80's to lower 90's through that time. The exception is the Northern Mountains, where temperatures in the mid to high 90's will be possible mid to late week.
Low pressure approaching the coast this weekend will bring a modest cooling trend to our region, but temperatures will stay above average through your extended forecast. Valley areas will dip back into the upper 80's to lower 90's by Sunday, while mountain and foothill areas top out in the upper 70's to mid 80's. We'll be staying dry through at least the middle of next week, but long range models are hinting at the potential for showers returning for the end of next week. Hoping that forecast holds as we could really use the rain.