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St. Columban School, CA Weather Forecast
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St. Columban School Weather Forecast
| TODAY | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | COLUMBUS DAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT |
 |  | | | |  |  |  |  | | | |
| Mostly Sunny | Patchy Fog | Patchy Fog | Patchy Fog | Patchy Fog | Chance of Showers | Showers Likely | Showers | Chance of Showers | Chance of Showers | Chance of Showers | Chance of Showers |
| Hi: 94°FHi: 34°C | Lo: 67°FLo: 19°C | Hi: 90°FHi: 32°C | Lo: 67°FLo: 19°C | Hi: 81°FHi: 27°C | Lo: 65°FLo: 18°C | Hi: 75°FHi: 24°C | Lo: 58°FLo: 14°C | Hi: 71°FHi: 22°C | Lo: 55°FLo: 13°C | Hi: 73°FHi: 23°C | Lo: 56°FLo: 13°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1211 AM PDT Thu Oct 08 2026 
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Issued: 207 AM PDT Thu Oct 8 2026
Discussion
...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE... SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO COUNTIES...
.SHORT TERM (Today through Saturday)... High pressure aloft will weaken into the weekend. Onshore will slowly strengthen and a shallow marine layer WILL slowly deepen into the weekend. Cooling of high temperatures will continue to spread inland. High temperatures for the deserts into the mountains will be a few degrees warmer today. Cooling will continue t...