Skip to main content

LATEST UPDATES: Tracking COVID-19 | Vaccines | Racial Justice

Sunny, Mild Weather In SD County; Santa Ana Winds Due Monday

Sunny skies in San Diego County, July 19, 2020.

Photo by KPBS Staff

Above: Sunny skies in San Diego County, July 19, 2020.

Sunday will be sunny and mild in San Diego County after a cold start, but another Santa Ana wind condition will hit the area Monday and Tuesday with gusty northeast winds and very low humidity in the mountains, valleys and some coastal areas, the National Weather Service said.

Mid- and high-level moisture will increase Sunday night and Monday as an upper trough over Oregon digs south across California before stalling off the coast of northern Baja Monday night, forecasters said.

"This moisture will translate into mid- and high-level clouds, but relative humidity increases will be modest and not too significant," the NWS said.

High temperatures in coastal areas Sunday were expected to be 66-71 degrees with overnight lows of 41-48, the weather service said. Valley highs will be 73-78 with overnight lows of 44-51.

Mountain highs were expected to be 62-69 with overnight lows of 36-46. Highs in the deserts will be 73-78 with overnight lows of 45-55.

On Monday night and Tuesday, red-flag conditions will be most widespread when the strongest Santa Ana winds arrive and the relative humidity plummets into the single digits.

Monday will be cooler in the deserts, mountains and inland valleys as the surge of cold air moves in from the north, the NWS said. Tuesday and Wednesday will be warmer, especially west of the mountains with downslope warming raising temperatures into the 80s in some spots.

A weak trough will pass to the north on Thursday and Friday, bringing some weak onshore flow and a few degrees of cooling.


San Diego News Now podcast branding

San Diego news; when you want it, where you want it. Get local stories on politics, education, health, environment, the border and more. New episodes are ready weekday mornings. Hosted by Anica Colbert and produced by KPBS, San Diego and the Imperial County's NPR and PBS station.

  • Need help keeping up with the news that matters most? Get the day's top news — ranging from local to international — straight to your inbox each weekday morning.

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Curious San Diego banner

Want more KPBS news?
Find us on Twitter and Facebook, or sign up for our newsletters.

To view PDF documents, Download Acrobat Reader.