textproduct: San Joaquin Valley

KEY MESSAGES

1. Clearing overnight will increase the potential for early morning fog on Monday. Dense Fog Advisory issued.

2. Below to near normal temperatures continue through much of the week.

DISCUSSION

As a time warp happened last night sending us back one hour, our weather have been sent back to cooler conditions this week. Overnight tonight skies will clear out as a ridge of high pressure briefly moves in. This ridge will help provide enough of an inversion for a Dense Fog Advisory for most of the Valley until 10 AM. Models as of 4 pm PST show a 20 to 30 percent chance of visibilities down to a mile.

Temperatures warm up a bit on Tuesday with a 25 to 45 percent chance of highs reaching 70 degrees. However, probabilities drop to near 0 for 70s on Wednesday as a quickmoving shortwave trough passes through. Temperatures will climb again beginning Thursday and by next weekend there is a 30 to 70 percent chance of highs of at least 75 degrees as another ridge of high pressure slides in and builds. The CPC has a 50-60 percent chance of above average temperatures in the 6-10 day outlook and a 40-50 percent chance of above average temperatures in the 8-14 day outlook.

With the trough moving through late Tuesday into Wednesday, wind gusts pick up along the Sierra Crest and Mojave Tuesday afternoon through Wednesday morning before decreasing. Luckily, it will be a more westerly flow. Sadly, we are not expecting any precipitation with this quick moving system. All is not lost, however, as the CPC has a 40 to 50 percent chance of above average precipitation in both the 6-10 and 8-14 day outlooks. In other words, Fall may really be here.

AVIATION

Areas of MVFR/IFR conditions between 6Z and 18Z with KVIS having a 20 to 30 percent chance of visibilities of 1 mile or less. VFR conditions will become dominant slowly after 15Z.

AIR QUALITY ISSUES

On Monday November 2 2026, Fireplace/Wood Stove Burning Status is: Burning Discouraged in Fresno, Kern, Kings, Madera, Merced, and Tulare Counties, and Kern (Greater Frazier Park Area), and Sequoia National Park and Forest.

CERTAINTY

The level of certainty for days 1 and 2 is high. The level of certainty for days 3 through 7 is medium.

Certainty levels include low...medium...and high. Please visit www.weather.gov/hnx/certainty.html for additional information and/or to provide feedback.

HNX WATCHES/WARNINGS/ADVISORIES

Dense Fog Advisory from 3 AM to 10 AM PST Monday for CAZ302- 305-306-309>312-314-315.