Weather WorldSan Marcos Junior High School, CA Weather Forecast
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San Marcos Junior High School Weather Forecast
| TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY |
 | | | |  |  |  | | |  | | |
| Patchy Fog | Patchy Fog | Patchy Fog | Patchy Fog | Partly Cloudy | Partly Cloudy | Mostly Clear | Partly Cloudy | Mostly Clear | Mostly Sunny | Mostly Clear | Mostly Sunny |
| Lo: 64°FLo: 18°C | Hi: 84°FHi: 29°C | Lo: 64°FLo: 18°C | Hi: 85°FHi: 29°C | Lo: 66°FLo: 19°C | Hi: 87°FHi: 31°C | Lo: 67°FLo: 19°C | Hi: 89°FHi: 32°C | Lo: 68°FLo: 20°C | Hi: 90°FHi: 32°C | Lo: 68°FLo: 20°C | Hi: 90°FHi: 32°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1133 AM PDT Sat Aug 15 2026 
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San Marcos Junior High School Forecast Discussion
Issued: 1225 PM PDT Sat Aug 15 2026
Discussion
...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE... SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO COUNTIES...
A trough is draped across the State, leading to temperatures slightly below normal today. This pattern of greater onshore flow and cooler weather also allowed for a deeper marine layer that covered inland valleys of Orange and San Diego Counties earlier this morning. We`ll give the monsoon another try later this afternoon as s...