Stockton, San Joaquin Valley Brace for 90s Next Week

Abnormally high temperatures expected to continue through mid-week

Mar. 13, 2026 at 10:21pm

The National Weather Service is forecasting abnormally high temperatures in the Stockton and San Joaquin County area, with highs potentially reaching the low 90s by early next week. The unseasonably warm weather is due to a strong high-pressure ridge building over Northern California, which is expected to keep temperatures elevated through the middle of next week.

Why it matters

Unseasonably high temperatures in the spring can pose health risks, especially for vulnerable populations. The weather service is urging residents to take precautions like staying hydrated, seeking shade, and limiting time outdoors during the hottest parts of the day.

The details

According to the National Weather Service, the high-pressure ridge will flatten slightly over the weekend, bringing some northerly winds, before strengthening again and pushing temperatures higher. Highs are expected to reach the mid-80s on Sunday and potentially the low 90s by Tuesday, with the elevated temperatures continuing through Thursday.

  • Temperatures are expected to start ramping up on Sunday, March 16.
  • Highs could reach the low 90s by Tuesday, March 18, and continue through Thursday, March 20.

The players

National Weather Service

The federal agency responsible for weather forecasting and issuing weather-related warnings.

Kate Forrest

A forecaster with the National Weather Service in Sacramento.

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What they’re saying

“We're really encouraging people to practice heat safety, because it does look like the warmer temperatures are going to continue well into early next week and potentially through the middle of the week as well.”

— Kate Forrest, Forecaster

What’s next

The National Weather Service will continue to monitor the situation and provide updates on the duration and intensity of the high temperatures.

The takeaway

This early-season heat wave serves as a reminder for residents of Stockton and the San Joaquin Valley to be prepared for extreme weather events and take necessary precautions to stay safe and healthy.