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San Diego's Weather Forecast for September 26, 2022: Dangerous fall heatwave through Wednesday

Posted at 8:37 AM, Sep 26, 2022
and last updated 2022-09-26 19:58:17-04

It may be fall but it certainly won't be feeling like it as temperatures soar 5 to 15 degrees above average due to a ridge of high pressure settling over the west.

A Heat Advisory is in effect for the coast and inland valleys through 8pm Wednesday while an Excessive Heat Warning is in effect for the deserts until 11pm Tuesday.

This heatwave won't be as awful as the one we experienced at the end of August through early September as it will be about 8 days shorter, it won't be as humid and the nights won't be as warm.

Tuesday and Wednesday will be the hottest days with 90s for most of the county.

While temperatures start to drop Thursday it will be more noticeably cooler this weekend as temperatures plummet 10 to 15 degrees cooler! We'll see 70s and 80s return for most of the county.

We tracked a few pop-up storms in our mountains Sunday and we have a slight chance of that activity continuing midweek with the greatest chance Wednesday afternoon.

Tips to Stay Safe in the Heat:
If you have outdoor pets, plan on giving them safe shelter and cool water. Remember cars turn into ovens in a matter of minutes, check the back seat before getting out of your car and never leave children or pets in the car. Wear light-weight, light-colored, loose-fitting clothing and stay hydrated! Avoid strenuous outdoor activities, enjoy air conditioning whenever possible and if you're working in the heat make sure to take breaks often and drink water every 15 minutes.

Another top story is Hurricane Ian, expected to make landfall in West Cuba tonight before moving NNE towards the western Florida coast, rapidly intensifying to a Category 3 then 4 hurricane as it moves over warm waters. Life-threatening storm surge and hurricane-force winds will be the biggest threats associated with Ian. Check on loved ones in that area as they should be preparing now for this extreme event.

Tuesday's Highs:
Coast: 76-85°
Inland: 87-98°
Mountains: 82-102°
Deserts: 106-112°

Follow ABC 10News Meteorologist Megan Parry on Facebook at Megan Parry 10News, Instagram @mis_meg_wx and Twitter @10NewsParry