Poor air quality will continue to be a big impact across northern California in today's forecast, but the good news is there is only a slight threat of thunderstorms in our region today. Air quality sensors are showing air quality in the moderate to unhealthy for sensitive groups range in Butte, Glenn, and Tehama Counties this morning, in the unhealthy range in Shasta County and the Northern Mountains, but still in the hazardous range for areas of Plumas and Lassen Counties. Skies are mostly clear for the start of your Thursday and most areas will stay sunny and hazy today. The one area where thunderstorm activity will be possible is in the Plumas, Lassen, and Modoc County region this afternoon and evening. Temperatures are starting out in the 60's to 70's in the valley and foothills, whlie mountain areas are mostly in the 50's this morning. Winds are light and out of the east early today, but will shift to become out of the south to 10mph again this afternoon. Humidity will end up in the 20 to 35 percent range later today. High temperatures are projected to end up in the lower to mid 90's in the valley and in the mid 80's to low 90's in the valley and foothills. The diminishing threat of thunderstorms, higher humidity values, and lighter winds will result in moderate to high fire danger today.
High pressure building west from our east, and off the West Coast in the Pacific will result in hotter temperatures on the way in your Friday forecast. Valley areas are expected to end up in the high 90's to low triple digits on Friday, while most mountain and foothill areas top out in the 80's to mid 90's. Low pressure passing through to our north is expected to bring temperatures down closer to average through the weekend, but they will still end up above average. Most of the valley will top out in the mid to high 90's on Saturday and Sunday, while the foothills and mountain climb into the 80's to low 90's. Models are currently split on what to expect for next week, but the more likely solution seems to be around average temperatures with the potential for gusty north winds at times early to mid week. The current projections put valley areas anywhere from the mid 90's to low triple digits next week, while foothill and mountain areas mostly top out in the mid 80's to low 90's. Smoke from active wildfires will continue to impact our region as long as these fires are burning, and we are currently forecasting hazy to smoky conditions to continue through your extended forecast.