Grab those sunglasses, stay hydrated, and dress for another day of above average temperatures as you're getting ready for your Tuesday. The threat of thunderstorms has now mostly shifted to our east, and we'll have much quieter weather on the way in your Tuesday forecast. We still have high pressure off to our east, but it's shifted east just enough to cut off the monsoonal moisture it was drawing into northern California on Monday. This will result in the threat of thunderstorms moving to our east on Tuesday, and more settled conditions across northern California. Low pressure approaching the Pacific Northwest will help to enhance the onshore flow and Delta Breeze today, and that will result in very modest cooling compared to Monday. Skies are mostly clear for the start of your Tuesday morning, and we'll have plenty of sunshine overhead today. Air quality will continue to be impacted in areas closest to our active fires today, with the worst air quality expected to remain close to the Dixie Fire. Winds are mostly out of the east or northeast this morning, but south or southwest winds will develop again this afternoon. Gusty southwest winds, low humidity, and dry fuels are driving a Red Flag Warning for high fire danger in Modoc County from 2pm through 8pm Tuesday. Temperatures are starting out in the 60's to 70's in the valley and foothills, while mountain areas have dipped into the 50's to 60's overnight. Humidity is projected to dip into the 11 to 23 percent range for most of our region this afternoon. High temperatures will end up in the 97 to 103 degree range in the valley, with mid 80's to mid 90's in the foothills and mountains later today.
The Delta Breeze will cool our high temperatures by a degree or two on Wednesday, but we'll otherwise have very similar conditions to Tuesday on Wednesday afternoon. A Fire Weather Watch has been issued for Modoc County from 2pm through 8pm Wednesday for the same reasons the Red Flag Warning will be in effect on Tuesday. This could very well get upgraded to another Red Flag Warning later today. High pressure will build back to the west late this week, and that will result in temperatures getting progressively hotter as we head into your weekend. Valley temperatures will top out in the upper 90's to lower triple digits on Thursday, and then widespread triple digit high temperatures are expected in the valley on Friday. Mountain and foothill areas will end up in the upper 80's to mid 90's later this week. Temperatures will end up in the 101 to 107 degree range for the valley through this weekend, while we end up in the upper 80's to lower triple digits in the foothills and mountains. Clouds will start to increase on Sunday as monsoonal moisture is drawn to the north by the high pressure to our east. This looks like it could end up being a similar setup to what we had Sunday into Monday of this week, and will bring a chance for some unsettled weather back into our region for the end of your 7 day forecast. Most of us are not expecting any active weather, but thunderstorms will not be out of the question in our Sierra locations on Sunday and Monday. Temperatures are also expected to cool by several degrees early next week. The latest outlook keeps the vast majority of our region dry for the foreseeable future, but the good news is we are not expecting any substantial wind events to return in your extended forecast.