Fireside Park, CA Weather Forecast
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Fireside Park Weather Forecast
| TODAY | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT |
| Patchy Fog | Patchy Fog | Patchy Fog | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy |
| Hi: 85°FHi: 29°C | Lo: 67°FLo: 19°C | Hi: 86°FHi: 30°C | Lo: 67°FLo: 19°C | Hi: 86°FHi: 30°C | Lo: 68°FLo: 20°C | Hi: 86°FHi: 30°C | Lo: 68°FLo: 20°C | Hi: 87°FHi: 31°C | Lo: 68°FLo: 20°C | Hi: 86°FHi: 30°C | Lo: 67°FLo: 19°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1229 AM PDT Tue Aug 18 2026 

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Fireside Park Forecast Discussion
Issued: 445 AM PDT Tue Aug 18 2026
Discussion
...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE... SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO COUNTIES...
...UPDATED AVIATION DISCUSSION...
.SHORT TERM (Today through Thursday)... High temperatures will continue to warm a few degrees for today and Wednesday with not much change for Thursday. High temperatures for Wednesday and Thursday will be around 5 degrees above average for inland areas with high temperatures ranging from the m...
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