warnings updated: Thursday, November 05, 2026, 8:33 am PST
NWS San Diego Forecast Discussion – Synopsis
Issued 324 AM PST Thu Nov 5 2026
Gradual warming through Sunday with periods of weak to moderate Santa Anas winds. Temperatures will be as high as 5-15 degrees above normal by Saturday when offshore winds peak. Gradual cooling Monday through Wednesday as offshore winds weaken and eventually turn back onshore.
Covers extreme southwestern California, including Orange, San Diego, western Riverside and southwestern San Bernardino counties.
High temperatures will be warmer today, close to seasonal averages. Mid 70s to lower 80s at lower elevations, 50s and 60s in the mountains, and 60s in the High Desert.
Data Courtesy of San Diego Weather Forecast Office
Almanac information is for the Palm Springs Airport and is provided by the National Weather Service.
High84°normal98° record (2020)
Low58°normal34° record (1936)
Sunrise6:09am
Sunset4:50pm
Moonrise2:39am
Moonset2:43pm
Illumination13%
Evaporative Cooler Effectiveness by City
Thousand Palms
Outside Temp72°F
Dew Point44°F
Est. Output60°F
Updated: Nov 5, 8:39 AM PST
It's already a comfortable 72°F outside — running the cooler isn't needed.
Estimated output is 60°F — air may come out uncomfortably cool.
Palm Desert (Hwy 111 & El Paseo)
Outside Temp72°F
Dew Point49°F
Est. Output61°F
Updated: Nov 5, 8:32 AM PST
It's already a comfortable 72°F outside — running the cooler isn't needed.
Palm Springs Airport
Outside Temp68°F
Dew Point40°F
Est. Output56°F
Updated: Nov 5, 7:53 AM PST
It's already a comfortable 68°F outside — running the cooler isn't needed.
Estimated output is 56°F — air may come out uncomfortably cool.
Thermal Airport
Outside Temp62°F
Dew Point45°F
Est. Output54°F
Updated: Nov 5, 7:52 AM PST
It's already a comfortable 62°F outside — running the cooler isn't needed.
Estimated output is 54°F — air may come out uncomfortably cool.
How to Read This
Score
0–100, based on the wet-bulb depression — how much cooler the air could get versus the actual outside temperature. Drier air means more room to cool, so a bigger gap scores higher.
Wet-Bulb Depression
The gap between the outside (dry-bulb) temperature and the wet-bulb temperature — the coolest evaporation alone could get the air. A bigger gap means drier air and more room for the cooler to work with.
Estimated(Est.) Output
The approximate temperature of the air coming out of the cooler, estimated by cooling the outside temperature most of the way toward the wet-bulb temperature.
Efficiency
These numbers assume 80% saturation efficiency — typical for a well-maintained direct (single-stage) evaporative cooler.
Lower dew point + higher temp = better cooling
(This guide generally will work for misting systems also)
