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Cucamonga Elementary School Weather Forecast
| TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY |
 |  |  |  |  |  | | |  | | | |
| Chance of T-Storm | Thunderstorms | Chance of Showers | Partly Cloudy | Mostly Clear | Mostly Sunny | Clear | Partly Cloudy | Partly Cloudy | Mostly Sunny | Mostly Clear | Partly Cloudy |
| Lo: 57°FLo: 14°C | Hi: 67°FHi: 19°C | Lo: 52°FLo: 11°C | Hi: 69°FHi: 21°C | Lo: 52°FLo: 11°C | Hi: 76°FHi: 24°C | Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°C | Lo: 56°FLo: 13°C | Hi: 80°FHi: 27°C | Lo: 56°FLo: 13°C | Hi: 79°FHi: 26°C |
| POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1216 PM PDT Wed Oct 21 2026 
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Issued: 1249 PM PDT Wed Oct 21 2026
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...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE... SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO COUNTIES...
At 12 PM the main rainfall band was west of Los Angeles County. Rain is expected to continue to move south and east, reaching Orange County late this afternoon and San Diego County early this evening. Two main bands of precipitation are expected with the first one at the onset of precipitation and the next early Thursday morning. Instability will increase ...