San Diego's Weather Forecast for Sept. 14, 2021: Gradual Cooling

Sunny beach
Posted at 4:57 AM, Sep 14, 2021
and last updated 2021-09-15 01:50:34-04

A cooling trend is underway with chilly temperatures tonight, and below normal temperatures sticking around through the weekend.

We have seen lower humidity, and lower temperatures, but many inland communities were still pretty warm this afternoon but tonight and into early Wednesday morning is going to feel like fall with temperatures dropping to the low 60s and upper 50. We will see some of the cooler air trending into the afternoon with daytime highs dropping below normal in many parts of the county.

Patchy low clouds and fog will be possible during the morning commute from the coast to the western valleys, as the marine layer deepens for the rest of the week.

Gusty onshore winds will be targeting the mountains and deserts each afternoon and evening, with wind gusts of 25 to 35mph. The humidity will also lower, averaging between 15 to 35% leading to elevated fire danger, despite the cool down.

If headed to the beaches, be prepared for elevated surf with waves of 3 to 6 feet and strong rip currents. A Beach Hazard Statement will be in effect through 9pm Wednesday.

The pattern will be unseasonably cool through the weekend and early next week, as a trough set up to our north.

Fall is right around the corner with the Autumnal Equinox happening at 12:21pm on September 22nd.

Wednesday's Highs:
Coast: 70-76°
Inland: 82-90°
Mountains: 80-94°
Deserts: 106-110°

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