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Mesa Grande School, CA Weather Forecast
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Mesa Grande School Weather Forecast
| TODAY | TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT |
 |  |  |  | |  | | |  | | | |
| Mostly Sunny | Chance of Showers | Partly Cloudy | Partly Cloudy | Mostly Sunny | Clear | Mostly Sunny | Mostly Clear | Chance of Showers | Chance of Showers | Showers Likely | Chance of Showers |
| Hi: 72°FHi: 22°C | Lo: 55°FLo: 13°C | Hi: 67°FHi: 19°C | Lo: 52°FLo: 11°C | Hi: 70°FHi: 21°C | Lo: 53°FLo: 12°C | Hi: 72°FHi: 22°C | Lo: 49°FLo: 9°C | Hi: 62°FHi: 17°C | Lo: 46°FLo: 8°C | Hi: 57°FHi: 14°C | Lo: 43°FLo: 6°C |
| POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1251 AM PDT Fri Oct 16 2026 
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Issued: 501 AM PDT Fri Oct 16 2026
Discussion
...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE... SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO COUNTIES...
...UPDATED AVIATION DISCUSSION...
Upper-level northeasterly flow has combined with a strong offshore surface pressure gradient to produce moderate to locally strong Santa Ana winds. Thus far, the winds have been primarily out of the northeast with the typically windy corridors north of San Diego County being more favored. Upper level winds will turn due eas...