warnings updated: Tuesday, November 10, 2026, 3:03 pm PST
NWS San Diego Forecast Discussion – Synopsis
Issued 1135 AM PST Tue Nov 10 2026
Above average conditions will continue through Wednesday. Cooler conditions with increased cloud coverage is expected for Thursday through early next week. Periods of showers and increased winds are expected starting Friday through next Tuesday.
Covers extreme southwestern California, including Orange, San Diego, western Riverside and southwestern San Bernardino counties.
Almanac information is for the Palm Springs Airport and is provided by the National Weather Service.
High81°normal96° record (1989)
Low56°normal35° record (1946)
Sunrise6:14am
Sunset4:46pm
Moonrise7:44am
Moonset5:30pm
Illumination1%
Evaporative Cooler Effectiveness by City
Thousand Palms
Outside Temp88°F
Dew Point43°F
Est. Output67°F
Updated: Nov 10, 3:17 PM PST
Palm Desert (Hwy 111 & El Paseo)
Outside Temp89°F
Dew Point47°F
Est. Output69°F
Updated: Nov 10, 3:10 PM PST
Palm Springs Airport
Outside Temp88°F
Dew Point37°F
Est. Output66°F
Updated: Nov 10, 2:53 PM PST
Thermal Airport
Outside Temp89°F
Dew Point40°F
Est. Output67°F
Updated: Nov 10, 2:52 PM PST
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)
