Today was a record hot one with Campo tying their daily record high of 105 degrees. Several inland areas soared into the triple digits today including El Cajon, Poway, Santee, Ramona and Alpine. This long-duration heat wave will last through Labor Day weekend bringing dangerous temperatures across the county as a strong high-pressure ridge expands over the desert southwest. Temperatures are trending 5 to 15 degrees above average with Saturday through Monday the hottest days of the stretch.
An Excessive Heat Warning is in effect for the entire county until 8pm Monday, but may be extended into Tuesday as the heat lingers. These will be some of the hottest temperatures of the year and with warm overnight temperatures, mostly staying in the 70s, those without air conditioning will have difficulty keeping cool.
Temperatures this week:
Coast: 80 - 96 degrees
Inland to the mountains: 90 to 105 degrees
Deserts: 108 to 115 degrees
We won't see a lot of record daily highs set because they are so high this time of the year and will be difficult to reach; for example, the record for San Diego for Sunday is 107, while I'm forecasting 88 degrees. I'm forecasting Escondido at 104 and Ramona at 104 on Sunday to break their record high for the day.
On top of the heat, it's going to be getting more humid as monsoon moisture builds again. There is an outside chance for a few stray thunderstorms this weekend in the mountains and dry lightning will be a concern.
Fire danger is also elevated due to the extreme temperatures and precautions should be taken to avoid any sparks that may start a fire. That includes checking for anything dragging from your vehicle and using extra caution with any activities you'll be taking part in this Labor Day weekend including dousing any campfires.
Tips to beat the heat:
Drink plenty of water, wear light-weight, loose-fitted clothing, avoid outdoor activity during the heat of the day, stay inside in air conditioning as often as possible, avoid caffeine and alcohol, never leave children or pets inside hot vehicles, provide pets with extra water and bring them inside if possible or at least provide adequate shade.
Thursday's Highs:
Coast: 77-87°
Inland: 90-103°
Mountains: 89-103°
Deserts: 110-115°
Follow ABC 10News Meteorologist Megan Parry on Facebook at Megan Parry 10News, Instagram @mis_meg_wx and Twitter @10NewsParry
