California heat wave forecast: What to expect on Sunday

SACRAMENTO, CA – We had a certified hot day on Saturday as downtown Sacramento reached 108 degrees! That’s good enough for the third hottest day of the year, behind only July 1 and July 2, when the temperature reached 109 degrees. Our weather forecast shows that many Sacramento and San Joaquin Valley locations will be there again today.

First things first, lows this morning were in the upper 60s across the valley, although the real heat was in the foothills. Temperatures in many areas did not reach below 80 degrees this morning, which is about 2-5 degrees warmer than yesterday. This is important because that extra heat will continue into this afternoon. Some clouds moved in overnight and will likely pass overhead throughout the day. But that doesn’t mean it will help ease afternoon temperatures.

that Excessive heat warning continuous For areas below 4,500 feet in elevation, and a Heat advice It remains in effect in areas above 4,500 feet until 11 p.m. tonight.

Credit: KXTV

Highs expected around Northern California for Sunday, July 16, 2023.

By late afternoon, temperatures around the valley will once again range between 105 degrees and 110 degrees. Expect temperatures around metro Sacramento to range from 107 degrees-110 degrees. The northern Sacramento Valley will rise toward 110 degrees. Stockton will be around 108 degrees, Modesto around 109 degrees.

Remember that 2-5 extra degrees of warmth this morning? This will help the foothills be warmer this afternoon than Saturday. High temperatures in areas like Auburn, Nevada City and Placerville range between 100 degrees and 105 degrees.

Temperatures in the Sierra will rise to between 90°-95° ​​this afternoon. Many people in these communities have limited or no air conditioning, which makes these temperatures even more dangerous.

If you’re affected by this heat and need somewhere to go, ABC10 has compiled a list of cooling centers in our area. Click here to find a cooling center near you, or view the statewide list from CalOES. has helpful tips and tools to keep you and your family safe during this heat wave.

If you have any outdoor plans this afternoon or early evening, consider postponing them until around sunset or canceling them altogether. This heat is very dangerous. Major heat hazards will be present across the region today, which means that for anyone who doesn’t drink plenty of water and takes frequent breaks in the shade (about every 20 to 30 minutes), heat-related illnesses are very possible.

Weather resources:

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Credit: KXTV

Evening forecast for Sunday, July 16, 2023.

The Delta Breeze will likely try to make a comeback on Sunday evening, which could provide some late-day relief for delta areas. However, I don’t expect many places, including Sacramento, to feel the cooling effects this evening, if any. We’ll stay warm through the evening hours, with temperatures still near 100 degrees by 7 this evening and in the 90s until 8.

The extreme heat warning and heat warning are set to expire at 11 tonight.

A warm night is on the horizon again, especially for mountainside communities. Valley lows reach near 70 degrees, while places like Jackson, Nevada City and Placerville only cool at the 80-degree mark.

Credit: KXTV

Low temperatures forecast for Northern California on Monday morning, July 17, 2023.

Finally, there is some notable relief on Monday as high pressure is no longer directly overhead. Temperatures will still be in the triple digits for many, but closer to 100 degrees than 110 degrees. As high pressure moves east Monday, it may pull some seasonal moisture with it, allowing a thunderstorm or two to develop in the Sierra.

Further cooling is expected during the middle of the week with average temperatures dropping to the mid-90s. However, high pressure is building westward as we head into the weekend. A forecast to set up over the western intermountain region should keep the worst of the temperatures at bay, but still send our highs between 100 degrees and 103 degrees.

Beat the heat: People flock to ice cream parlors in just one of many attempts to cool off.

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