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Orange County Fairgrounds, CA Weather Forecast
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Orange County Fairgrounds Weather Forecast
| TODAY | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT |
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| Patchy Fog | Patchy Fog | Mostly Cloudy | Patchy Fog | Partly Cloudy | Patchy Fog | Partly Cloudy | Chance of Showers | Partly Cloudy | Mostly Clear | Chance of Showers | Mostly Clear |
| Hi: 76°FHi: 24°C | Lo: 68°FLo: 20°C | Hi: 80°FHi: 27°C | Lo: 67°FLo: 19°C | Hi: 81°FHi: 27°C | Lo: 67°FLo: 19°C | Hi: 81°FHi: 27°C | Lo: 66°FLo: 19°C | Hi: 79°FHi: 26°C | Lo: 65°FLo: 18°C | Hi: 81°FHi: 27°C | Lo: 68°FLo: 20°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1146 PM PDT Thu Sep 24 2026 
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Issued: 209 AM PDT Fri Sep 25 2026
Discussion
...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE... SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO COUNTIES...
Low clouds are still struggling to form early this morning over the coastal waters. The marine layer will remain thin over the next couple of days, bringing low clouds and patchy fog to areas within around 10 miles of the coast each late night and morning. One of the reasons for this will be high pressure aloft over Mexico beginning to expand further into ...