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Climate and Environment

Your SoCal weather report for Tuesday, Sept. 3: SoCal to sizzle this afternoon with triple digit highs in the valleys, inland areas

A geothermal map of SoCal in shades of orange, yellow and green with white numbers over different cities.
An excessive heat watch begins on Wednesday.
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Courtesy NWS
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Quick Facts
    • Today’s weather: Hot, sunny
    • Beaches: 70s-80s
    • Mountains: 90s-100s
    • Deserts: 100s-112
    • Inland: 90s-109
    • Warnings and advisories: Excessive heat watch

It's another Tuesday takeover, and in today's forecast, the heatwave officially begins and is expected to last through the weekend.

Let's start with the coasts, where it will be the coolest for the next couple of days — the marine layer will continue to provide cloud coverage through the morning burning off to a warm and sunny afternoon with highs in the 70s, 88 degrees in Long Beach and upper 80s to low 90s for the inland coast.

Moving away from the coast interior areas will range from 95 to 105 degrees. The western San Fernando Valley will feel the brunt of this heatwave triggering an excessive heat warning with a high of 109 degrees today. The rest of the valleys will follow that same warning come Wednesday.

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Expect a high of 112 degrees in Coachella Valley, where the lows will drop to 86 degrees. In the high desert — expect highs between 98 to 105 degrees, and lows in the mid 70s.

Interior areas will also see little relief from the heat tonight with lows in the mid 70s. Coastal areas will drop to the mid 60s tonight.

Forecasters say the peak of this heatwave will be on Thursday and Friday.

The city of L.A. has opened five cooling centers to help Angelenos beat the heat from 10 a.m .to 9 p.m today through Friday:

  • Fred Roberts Recreation Center
    4700 Honduras St., Los Angeles, CA, 90011
  • Mid Valley Senior Center
    8801 Kester Ave., Panorama City, CA, 91402
  • Sunland Senior Center
    8640 Fenwick St., Sunland, CA, 91040
  • Jim Gilliam Recreation Center
    4000 S. La Brea Ave., Los Angeles, CA 90008
  • Lincoln Heights Senior Center
    2323 Workman St., Los Angeles, CA 90031

And residents in Skid Row can find heat relief at climate stations that provide cold beverages, seating, shade and other resources at these locations:

  • Towne St. (between 5th St. & 6th. St.) across from ReFresh Spot
  • San Pedro St. mid-block between 6th and 7th Streets
  • 5th and Maple

A reminder that LADWP customers can sign up to receive power outage alerts through text or email here.

Tips to stay cool
    • Kiddie pool
    • Lotions in the fridge
    • Eat spicy foods in the basement (or on the floor) while wearing a damp shirt and listening to the rain setting on your white noise machine
    • Make sure ceiling fans are running counterclockwise
    • Wet paper towels. Fold into ankle and wrist cuffs. Freeze. Wear. Repeat.
    • Build a DIY AC
    • Build a mini cold air fan
    • Build an "evaporative cooler for immediate heat relief"
    • Make a barricade of fans and ice cubes
    • Go to an air-conditioned store and browse for as long as possible (Target is a good option for this).
    • Close all the curtains, preferably the heat-absorbing kind
    • Or open all the windows, depending on the breeze situation
    • Cool bath or shower twice a day
    • Wash your sheets before bed but don't dry them — put them on your bed damp (provided you're dealing with a dry heat)
    • Portable A/C unit

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