Scorching Winter Weather Sweeps Southern California

A major heat wave is set to hit Los Angeles County this week, with temperatures reaching the 90s.

Published on Mar. 9, 2026

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A winter heat wave is expected to hit Los Angeles County later this week, with temperatures soaring into the 90s on Thursday and Friday. The heat wave will bring the hottest March weather the region has seen in years, with record-breaking highs possible. Meteorologists warn residents to take precautions and utilize local resources to beat the unexpected warmth.

Why it matters

Extreme heat events in the winter months are becoming more common in Southern California due to climate change. This heat wave highlights the need for the region to be prepared for unpredictable weather patterns and have plans in place to protect vulnerable populations during periods of intense heat.

The details

The heat wave will begin on Wednesday, with temperatures reaching the mid-70s. By Thursday, highs will soar to around 93 degrees in downtown Los Angeles, making it the hottest day of the week. Friday is expected to be nearly as hot, with a high of 93 degrees. Temperatures will drop slightly over the weekend, but will still remain well above normal for this time of year.

  • On Monday, March 9, the high temperature reached 72 degrees.
  • On Tuesday, March 10, the high temperature will be around 70 degrees.
  • On Wednesday, March 11, the high temperature will be around 77 degrees.
  • On Thursday, March 12, the high temperature will reach around 93 degrees.
  • On Friday, March 13, the high temperature will reach around 93 degrees.

The players

Belen De Leon

A meteorologist for NBC Los Angeles who provided the weather forecast details for the heat wave.

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What they’re saying

“Typically, 90-degree days start at the end of April or beginning of May. Sometimes, they don't hit until June.”

— Belen De Leon, Meteorologist (NBC Los Angeles)

What’s next

Residents are advised to take precautions against the extreme heat, such as staying hydrated, limiting time outdoors, and utilizing cooling centers. The National Weather Service has issued a heat risk warning for many parts of Los Angeles County.

The takeaway

This unexpected winter heat wave underscores the need for Southern California to be prepared for the impacts of climate change, including more frequent and intense extreme weather events. Proactive planning and community-based solutions will be crucial to protecting vulnerable populations during these types of heat emergencies.