Cooling Temps and Rain Chances Coming to SoCal

Southern California to see a gradual cooldown and chance of showers early next week.

Apr. 18, 2026 at 8:49pm

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A vast, majestic landscape painting in muted tones of gray, blue, and green, depicting a dramatic, fog-shrouded coastal scene with a distant, hazy horizon, conveying the overwhelming scale and power of the natural environment.The impending weather shift in Southern California will bring a dramatic change in atmospheric conditions, dwarfing the human presence within the natural landscape.Los Angeles Today

Temperatures in Southern California are set to drop in the coming days, with a gradual cooldown starting as soon as Sunday. This change in weather will also bring the chance of rain showers, particularly on Tuesday, as a low-pressure system moves into the region from the coast.

Why it matters

The shift in weather patterns is a typical seasonal transition for Southern California, but the timing and extent of the cooldown and rain chances can have impacts on daily activities, energy usage, and outdoor plans for residents across the region.

The details

According to NBC4 Meteorologist Kelly Moody, the temperature drop will be noticeable, with some areas seeing a cooldown of up to 20 degrees over just a couple of days. While the rain chances are not expected to be from a strong storm system, the showers are forecast to move eastward and reach the Inland Empire areas as well.

  • The cooldown could start as soon as Sunday, April 23, 2026.
  • Rain chances are expected to arrive on Tuesday, April 25, 2026.

The players

Kelly Moody

NBC4 Meteorologist who provided the weather forecast details for the upcoming cooldown and rain chances in Southern California.

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What they’re saying

“Now, those temperatures won't be too much cooler, but it'll be enough that you'll notice the difference between today and tomorrow. But then you'll really notice the difference once we get into next week because that's when we're expecting rain chances to return.”

— Kelly Moody, NBC4 Meteorologist

What’s next

Residents in Southern California should monitor local weather forecasts for the latest updates on the timing and intensity of the expected cooldown and rain chances in the coming days.

The takeaway

The upcoming weather pattern shift in Southern California is a typical seasonal change, but the specific timing and extent of the temperature drop and rain chances can impact daily routines and plans for residents across the region.