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Excelsior Elementary School Weather Forecast
| TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY |
 | |  |  | | |  |  | | | | |
| Patchy Drizzle | Patchy Drizzle | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Clear | Mostly Sunny | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy |
| Lo: 61°FLo: 16°C | Hi: 80°FHi: 27°C | Lo: 60°FLo: 16°C | Hi: 77°FHi: 25°C | Lo: 60°FLo: 16°C | Hi: 81°FHi: 27°C | Lo: 62°FLo: 17°C | Hi: 83°FHi: 28°C | Lo: 62°FLo: 17°C | Hi: 82°FHi: 28°C | Lo: 61°FLo: 16°C | Hi: 80°FHi: 27°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1125 AM PDT Tue Sep 15 2026 
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Issued: 1123 PM PDT Tue Sep 15 2026
Discussion
...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE... SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO COUNTIES...
...UPDATED AVIATION DISCUSSION...
An area of low pressure is beginning to form near Seattle and Vancouver. This system will work its way southward through Thursday, bringing in cooler than average temperatures, breezy conditions across the mountains and deserts, and a healthier marine layer. Low clouds will fill in much of the coastal basin each night and m...