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Climate & Environment

Your SoCal Weather Report For Thursday, Sept 21: Cloudy September Days

A geothermal map of Southern California and the coast in shades of blue, green, yellow indicating temperature ranges.
Highs today will be in the 70s and mostly cloudy — the Antelope and Coachella valleys will see the most sun.
(
Courtesy NWS
)

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In the forecast, the cooler weather continues today with partly cloudy skies dominating most parts of Southern California.

Quick Facts

  • Today’s weather: cloudy and patches of sunshine
  • Beaches: 70s
  • Mountains/deserts: 60s/70s-80s
  • Inland: 70s
  • Warnings and advisories: Wind advisory

The National Weather Service says there's a 20% chance of light rain for mainly the coast, coastal valleys and foothills.

Today's highs will be in the 70s for most of Southern California. Along the coast, it'll be in the upper 60s to low 70s and slightly breezy. It'll be a bit cooler in the mountains with temperatures reaching the upper 60s.

In Riverside, San Bernardino and the Inland Empire, temperatures are still in the low to mid 70s. Highs in the low desert have dropped to the upper 80s, to 92. In the high desert, temperatures have dropped to the upper 70s to low 80s.

Antelope Valley and the low desert will see more sunshine than the rest of the area.

These temperatures are typical for a December day, according to the National Weather Service.

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And throughout the region, nighttime lows will dip into the low 60s with more patchy fog and light drizzle.

Taking a look ahead: The below-than-normal temperatures are here to stay until tomorrow when a slight warming trend — about 5-10 degrees — begins. That will carry into the beginning of next week.

About those advisories

There's a wind advisory out for the Western and Eastern Antelope Valley foothills where southwest winds between 20 to 30 mph are expected, gusts up to 50 mph are also possible.

That's in effect from 1 p.m. to 9 p.m.

This day in history

On this day in 1968: It was 26° in Idyllwild, the lowest temperature recorded for the area for the month of September.

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Things to do

Looking for ways to celebrate pre-Friday? Spend it with:

  • Chance The Rapper
    Chance the Rapper celebrates the 10-year anniversary of his Billboard-charting mixtape Acid Rap with a show this week at the Kia Forum. Vic Mensa opens the night.   

Check out our full list of things to do this week.

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