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O'Neill Park Weather Forecast
| TODAY | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | MONDAY | TUESDAY | TUESDAY NIGHT | WEDNESDAY |
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| Sunny | Mostly Clear | Sunny | Mostly Clear | Sunny | Partly Cloudy | Mostly Clear | Mostly Clear | Sunny | Mostly Clear | Sunny |
| Hi: 99°FHi: 37°C | Lo: 65°FLo: 18°C | Hi: 91°FHi: 33°C | Lo: 61°FLo: 16°C | Hi: 91°FHi: 33°C | Lo: 60°FLo: 16°C | Hi: 85°FHi: 29°C Lo: 59°FLo: 15°C | Hi: 85°FHi: 29°C Lo: 59°FLo: 15°C | Hi: 89°FHi: 32°C | Lo: 60°FLo: 16°C | Hi: 91°FHi: 33°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 310 AM PDT Thu Sep 24 2026 
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Issued: 1042 PM PDT Wed Sep 23 2026
Key Messages
1. Minor Heat Risk through Wednesday as temperatures remain around seasonal normal values.
2. Warmer temperatures dominate Thursday with a 30-50% chance of triple digits and a greater than 70% chance of Moderate Heat Risk throughout the Valley
Discussion
... In spite the calender showing we are in Fall, at least one more hot day is anticipated for 2026. Under the influence of high pressure moving warmer air from the south, Thursday temperatures will be 10-15 degrees above normal. Lookin...