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Granger Junior High School Weather Forecast
| TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY |
 |  | |  |  | |  |  | | | | |
| Becoming Cloudy | Mostly Sunny | Becoming Cloudy | Mostly Cloudy | Partly Cloudy | Mostly Cloudy | Mostly Clear | Partly Cloudy | Mostly Clear | Partly Cloudy | Partly Cloudy | Partly Cloudy |
| Lo: 64°FLo: 18°C | Hi: 74°FHi: 23°C | Lo: 63°FLo: 17°C | Hi: 76°FHi: 24°C | Lo: 64°FLo: 18°C | Hi: 82°FHi: 28°C | Lo: 66°FLo: 19°C | Hi: 85°FHi: 29°C | Lo: 68°FLo: 20°C | Hi: 86°FHi: 30°C | Lo: 68°FLo: 20°C | Hi: 86°FHi: 30°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1134 AM PDT Sun Sep 20 2026 
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Issued: 1117 PM PDT Sun Sep 20 2026
Discussion
...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE... SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO COUNTIES...
...UPDATED AVIATION DISCUSSION...
The marine layer pushed in efficiently this morning, filling in the coastal basin and western valleys. High clouds associated with an upper level low over Central CA will continue to stream into SoCal through the afternoon. Even as the low marine layer clouds burn off, these higher clouds will keep temperatures a bit cooler...