Grab some extra water and plan ahead on staying inside somewhere with air conditioning. Dangerous heat is ahead for your Memorial Day, and we'll continue to be very hot this week. An Excessive Heat Warning is in effect for the valley and foothills through 9pm Tuesday evening, and a Heat Advisory will be in effect for the Northern Mountains from 11am Monday through 8pm Tuesday. High pressure centered just off the California coast in the Pacific will be the dominant feature in our forecast today, and will continue to dominate our conditions through this week. Record high temperatures will be possible in many cities across our region today, with both Redding and Red Bluff projected to break previous records. Skies are mostly clear for the start of your Memorial Day forecast, and we'll stay mostly sunny today. Temperatures are ranging from the upper 60's to lower 80's in the valley, 60's to 70's in the foothills, and 40's to 50's in our mountain zones for the start of your Monday. We'll have mostly sunny skies and wind out of the north up to around 15mph today. Gusts to 20mph will be possible. The dry, hot, and breezy conditions will be a concern for fire danger today, so please use extra caution as fires could start very easily. High temperatures are projected to end up in the 105 to 110 degree range in the valley, in the upper 80's to around 100 degrees in the foothills, and anywhere from the mid 80's to around 100 degrees in our mountain areas this afternoon.
Your Tuesday forecast looks to be almost a carbon copy of what we'll have outside on Monday, but one difference is records will be a little harder to break for the first day of June. Sunny to mostly sunny skies, and light south winds are expected on Tuesday afternoon. We'll stay very hot through the week, but temperatures will drop by a couple of degrees on Wednesday. It looks like the drop will be enough to keep us from staying in the Excessive Heat Warning for the valley, but it wouldn't be surprising to see that extended through Wednesday evening. Valley areas will then top out in the upper 90's to lower triple digits later this week, and low temperatures wlil mostly dip into the 60's to lower 70's in the valley late week. Foothill areas will have low temperatures in teh 60's to lower 70's, and high temperatures will top out in the 80's to mid 90's. Mountain areas will dip into the 40's to 50's later this week, and end up in the 80's to 90's.
The heat is expected to persist into this weekend. Triple digit heat is projected for most valley areas on Saturday afternoon, while foothill and mountain areas end up in the 80's to mid 90's. We'll then see a welcome drop in temperatures on Sunday, but valley areas are still expected to climb into the mid 90's, while most foothill and mountain aresa end up in the 80's. Please be extremely cautious with the dangerous heat ahead for the next several days. Dress for the heat, wear loose fitting, light colored and light fabric clothing, drink plenty of water, and stay inside in air conditioning between 10am and 7pm if you're able to do so.