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Potrero County Park Weather Forecast
| TODAY | TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT |
 |  | |  | | | | |  |  |  |  |
| Mostly Sunny | Patchy Fog | Mostly Sunny | Mostly Clear | Mostly Sunny | Clear | Mostly Sunny | Mostly Clear | Partly Cloudy | Partly Cloudy | Chance of Showers | Chance of Showers |
| Hi: 88°FHi: 31°C | Lo: 62°FLo: 17°C | Hi: 86°FHi: 30°C | Lo: 62°FLo: 17°C | Hi: 86°FHi: 30°C | Lo: 61°FLo: 16°C | Hi: 83°FHi: 28°C | Lo: 59°FLo: 15°C | Hi: 84°FHi: 29°C | Lo: 64°FLo: 18°C | Hi: 88°FHi: 31°C | Lo: 68°FLo: 20°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1254 AM PDT Mon Aug 31 2026 
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Issued: 436 AM PDT Mon Aug 31 2026
Discussion
...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE... SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO COUNTIES...
...UPDATED AVIATION DISCUSSION...
.SHORT TERM (Today through Wednesday)... The cooling trend will continue through Wednesday with high temperatures on Wednesday around 5 degrees below average for inland areas. High temperatures on Wednesday will range from the mid to upper 70s near the coast to the mid 80s to lower 90s for the Inland Empire with 100 to 104 ...