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Mount Laguna Weather Forecast
| TODAY | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT |
 |  | | |  | | |  |  | | | |
| Sunny | Clear | Mostly Sunny | Mostly Clear | Chance of T-Storm | Mostly Clear | Mostly Sunny | Partly Cloudy | Partly Cloudy | Partly Cloudy | Mostly Sunny | Partly Cloudy |
| Hi: 81°FHi: 27°C | Lo: 57°FLo: 14°C | Hi: 85°FHi: 29°C | Lo: 58°FLo: 14°C | Hi: 86°FHi: 30°C | Lo: 61°FLo: 16°C | Hi: 88°FHi: 31°C | Lo: 62°FLo: 17°C | Hi: 86°FHi: 30°C | Lo: 59°FLo: 15°C | Hi: 81°FHi: 27°C | Lo: 55°FLo: 13°C |
| POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1255 AM PDT Tue Sep 22 2026 
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Issued: 441 AM PDT Tue Sep 22 2026
Discussion
...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE... SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO COUNTIES...
...UPDATED AVIATION DISCUSSION...
.SHORT TERM (Today through Thursday)... A weak low pressure system will develop off the coast of northern Baja today and linger into Thursday with weak lower-level easterly flow and east winds for the mountains at times on Wednesday and Thursday. High temperatures for today will warm a few degrees near the coast to 5 to loc...