warnings updated: Monday, November 02, 2026, 11:48 am PST
NWS San Diego Forecast Discussion – Synopsis
Issued 1029 AM PST Mon Nov 2 2026
Fair and dry weather is expected this week. It will be a little breezier late Tuesday into Wednesday, with some coastal clouds. Stronger high pressure and weak offshore flow will bring dry and warmer weather Thursday and Friday. It looks much warmer with stronger offshore breezes this weekend.
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.
High85°normal98° record (1950)
Low59°normal36° record (1936)
Sunrise6:07am
Sunset4:53pm
Moonrise---
Moonset1:19pm
Illumination41%
Evaporative Cooler Effectiveness by City
Thousand Palms
Outside Temp78°F
Dew Point40°F
Est. Output62°F
Updated: Nov 2, 12:02 PM PST
Palm Desert (Hwy 111 & El Paseo)
Outside Temp79°F
Dew Point45°F
Est. Output64°F
Updated: Nov 2, 11:58 AM PST
Palm Springs Airport
Outside Temp78°F
Dew Point36°F
Est. Output60°F
Updated: Nov 2, 11:53 AM PST
Thermal Airport
Outside Temp79°F
Dew Point37°F
Est. Output61°F
Updated: Nov 2, 11:52 AM 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)
