Weather WorldBostonia Elementary School, CA Weather Forecast
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Bostonia Elementary School Weather Forecast
| TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY |
 |  | |  | |  | | |  |  | | |
| Partly Cloudy | Mostly Sunny | Partly Cloudy | Partly Cloudy | Partly Cloudy | Chance of T-Storm | Partly Cloudy | Partly Cloudy | Mostly Clear | Chance of Showers | Mostly Clear | Partly Cloudy |
| Lo: 68°FLo: 20°C | Hi: 90°FHi: 32°C | Lo: 70°FLo: 21°C | Hi: 89°FHi: 32°C | Lo: 69°FLo: 21°C | Hi: 90°FHi: 32°C | Lo: 69°FLo: 21°C | Hi: 89°FHi: 32°C | Lo: 69°FLo: 21°C | Hi: 88°FHi: 31°C | Lo: 68°FLo: 20°C | Hi: 88°FHi: 31°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1151 AM PDT Tue Aug 18 2026 
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Bostonia Elementary School Forecast Discussion
Issued: 421 PM PDT Tue Aug 18 2026
Discussion
...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE... SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO COUNTIES...
...UPDATED AVIATION DISCUSSION...
This afternoon, scattered high clouds are streaming in from the Pacific, caught in the broader clockwise high pressure flow across much of the western US. Temperatures are running generally 1 to 4 degrees F warmer than yesterday with more 100 degree readings expected across the Inland Empire an...