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McMillan School Weather Forecast
| TODAY | TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | COLUMBUS DAY | MONDAY NIGHT |
 |  | |  | | | |  |  | | | |
| Sunny | Mostly Clear | Mostly Sunny | Patchy Fog | Patchy Fog | Patchy Fog | Patchy Fog | Chance of Showers | Chance of Showers | Chance of Showers | Chance of Showers | Chance of Showers |
| Hi: 99°FHi: 37°C | Lo: 70°FLo: 21°C | Hi: 95°FHi: 35°C | Lo: 68°FLo: 20°C | Hi: 87°FHi: 31°C | Lo: 66°FLo: 19°C | Hi: 83°FHi: 28°C | Lo: 63°FLo: 17°C | Hi: 77°FHi: 25°C | Lo: 58°FLo: 14°C | Hi: 74°FHi: 23°C | Lo: 56°FLo: 13°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1202 AM PDT Wed Oct 07 2026 
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Issued: 430 AM PDT Wed Oct 7 2026
Discussion
...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE... SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO COUNTIES...
...UPDATED AVIATION DISCUSSION...
.SHORT TERM (Today through Friday)... The long-duration heatwave will continue for the coast and valleys through Thursday and through Friday for the lower deserts. Inland areas will warm a few degrees today while the coast into the western San Diego County valleys cools a few degrees. There will be Moderate HeatRisk for the...