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Robinson Ranch Weather Forecast
| TODAY | TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT |
 |  | |  | | | | | |  | | |
| Partly Cloudy | Patchy Fog | Patchy Fog | Mostly Clear | Patchy Fog | Mostly Clear | Partly Cloudy | Mostly Clear | Partly Cloudy | Partly Cloudy | Partly Cloudy | Mostly Clear |
| Hi: 80°FHi: 27°C | Lo: 60°FLo: 16°C | Hi: 80°FHi: 27°C | Lo: 60°FLo: 16°C | Hi: 81°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 84°FHi: 29°C | Lo: 63°FLo: 17°C | Hi: 80°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 80°FHi: 27°C | Lo: 61°FLo: 16°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1229 AM PDT Wed Sep 16 2026 
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Issued: 432 AM PDT Wed Sep 16 2026
Discussion
...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE... SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO COUNTIES...
...UPDATED AVIATION DISCUSSION...
.SHORT TERM (Today through Friday)... Low pressure moving southward into California today will weaken and move east on Thursday and Friday. High temperatures will remain as much as 5 to 10 degrees below average for the mountains and inland valleys for today and Thursday with high temperatures ranging from the lower to mid 7...