Air quality has improved quite a bit over the last 24 hours, but fire danger is staying elevated in your Tuesday forecast. Low pressure off the coast in the Pacific will continue to drive gusty south winds through our region today, but they are not expected to be as strong as yesterday. A Red Flag Warning for high fire danger will be in effect from noon through 8PM today for portions of Modoc and Siskiyou Counties due to the gusty winds and low humidity. Gusts up to around 35mph will be possible, and humidity will bottom out in the teens in that area. Smoke will continue to impact air quality but our region has benefitted from the stronger winds on Monday. We'll continue to see air quality improve with the south winds today. Most of our region is hovering between the moderate to unhealthy range for air quality this morning.
Temperatures are starting out in the 50's to 60's in the valley and foothills, while mountain areas are ranging from the upper 30's to 50's early this morning. Winds are mostly light and out of the northeast, but will shift to become out of the south to 15mph this afternoon. Gusts up to around 20mph will be possible in most areas. Humidity will dip into the teens to around 30 percent this afternoon for the majority of our region. The dry and windy conditions will bring elevated fire danger today. Fire danger will be back in the high range this afternoon. High temperatures will range from the upper 80's to mid 90's in the valley, while foothill and mountian areas mostly end up in the mid 80's this afternoon.
Low pressure will move into the Pacific Northwest on Thursday, and that will bring some changes to our forecast. The potential for showers and thunderstorms will return to our northern zones and coastal areas for Thursday and Friday, while temperatures get a little cooler. Valley areas will top out in the lower 80's on Thursday and will then dip into the mid to high 70's on Friday. Foothill and mountain areas can expect high temeratures in the mid to high 70's on Thursday, and then in the upper 60's to lower 70's on Friday afternoon. Winds out of the southwest will be picking up during this time, and that should help our air quality. There will be an increase in fire danger due to the stronger winds and the threat of thunderstorms.
Low pressure will move off to our east on Saturday and high pressure will build across our region. This will result in dry weather, and the return of moderate north winds. Air quality may become more impacted again during this time depending on fire behavior, and high temperatures will warm back into the mid 80's in the valley on Saturday. Mountain and foothill areas will climb back into the mid to upper 70's on Saturday. Sunday will bring temperatures back into the 80's to lower 90's in the valley, and into the 70's to lower 80's in the foothills and mountains. Conditions will be similar to Sunday on Monday.