warnings updated: Saturday, November 14, 2026, 3:48 pm PST
NWS San Diego Forecast Discussion – Synopsis
Issued 1103 AM PST Sat Nov 14 2026
Below-normal temperatures prevail for the entirety of the forecast period. A system arriving Monday/Tuesday will bring additional light rain/snow and gusty winds, along with a marine thunderstorm threat and coastal hazards. Another system late next week may bring similar impacts but with lower confidence.
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.
High79°normal93° record (2021)
Low54°normal31° record (1964)
Sunrise6:17am
Sunset4:44pm
Moonrise11:01am
Moonset9:04pm
Illumination26%
Evaporative Cooler Effectiveness by City
Thousand Palms
Outside Temp77°F
Dew Point50°F
Est. Output64°F
Updated: Nov 14, 3:49 PM PST
Palm Desert (Hwy 111 & El Paseo)
Outside Temp75°F
Dew Point53°F
Est. Output65°F
Updated: Nov 14, 3:41 PM PST
Palm Springs Airport
Outside Temp75°F
Dew Point47°F
Est. Output62°F
Updated: Nov 14, 2:53 PM PST
Thermal Airport
Outside Temp77°F
Dew Point50°F
Est. Output64°F
Updated: Nov 14, 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)
