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Crestmore, CA Weather Forecast
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Crestmore Weather Forecast
| TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY |
 |  |  |  | |  | | | | | | |
| Mostly Clear | Chance of T-Storm | Partly Cloudy | Partly Cloudy | Mostly Clear | Mostly Sunny | Clear | Mostly Sunny | Clear | Mostly Sunny | Clear | Sunny |
| Lo: 75°FLo: 24°C | Hi: 103°FHi: 39°C | Lo: 75°FLo: 24°C | Hi: 99°FHi: 37°C | Lo: 71°FLo: 22°C | Hi: 95°FHi: 35°C | Lo: 65°FLo: 18°C | Hi: 92°FHi: 33°C | Lo: 60°FLo: 16°C | Hi: 90°FHi: 32°C | Lo: 61°FLo: 16°C | Hi: 91°FHi: 33°C |
| POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1229 PM PDT Tue Sep 08 2026 
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Issued: 535 PM PDT Tue Sep 8 2026
Discussion
...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE... SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO COUNTIES...
...UPDATED AVIATION/MARINE/BEACHES DISCUSSION...
A number of factors came together to create a scorching afternoon in San Diego County yesterday. First, the tropical moisture that has been funneling into the region for a few days effectively wiped out any cooling marine layer influence. Also, subsidence was likely sourced from multiple locations yesterday; ...