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Arnold Weather Forecast
| TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | WEDNESDAY | THURSDAY | FRIDAY |
 | |  |  |  |  | | | | | |
| Hazy | Hazy | Smoke | Partly Cloudy | Mostly Clear | Sunny | Clear | Clear | Clear | Clear | Mostly Sunny |
| Lo: 66°FLo: 19°C | Hi: 90°FHi: 32°C | Lo: 67°FLo: 19°C | Hi: 90°FHi: 32°C | Lo: 65°FLo: 18°C | Hi: 88°FHi: 31°C | Lo: 65°FLo: 18°C | Hi: 89°FHi: 32°C Lo: 66°FLo: 19°C | Hi: 89°FHi: 32°C Lo: 66°FLo: 19°C | Hi: 89°FHi: 32°C Lo: 66°FLo: 19°C | Hi: 84°FHi: 29°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 202 PM PDT Fri Oct 02 2026 
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Issued: 1216 PM PDT Fri Oct 2 2026
Key Messages
- Heat Advisory in effect from 11 AM Saturday - 10 PM Wednesday the Sacramento Valley, Delta, northern San Joaquin Valley, and adjacent foothills.
- High temperatures, 10-20 degrees above normal, will lead to widespread Moderate HeatRisk in the Delta, Valley, and foothills Today-Thursday, with areas of Major HeatRisk in the Delta.
Discussion
...
...Today (10/02)...
High pressure aloft will be the headline for at least the next 7 days, with continued dry and hot conditions expected. For today...