Sun Valley, AZ Weather Forecast
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Sun Valley Weather Forecast
| REST OF TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | MONDAY | TUESDAY |
| Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Clearing | Mostly Clear | Mostly Clear | Mostly Clear | Clear | Clear | Mostly Clear | Mostly Clear | Mostly Clear |
| Lo: 50°FLo: 10°C | Hi: 63°FHi: 17°C | Lo: 49°FLo: 9°C | Hi: 70°FHi: 21°C | Lo: 51°FLo: 11°C | Hi: 74°FHi: 23°C Lo: 51°FLo: 11°C | Hi: 74°FHi: 23°C Lo: 51°FLo: 11°C | Hi: 75°FHi: 24°C Lo: 51°FLo: 11°C | Hi: 75°FHi: 24°C Lo: 51°FLo: 11°C | Hi: 76°FHi: 24°C Lo: 52°FLo: 11°C | Hi: 76°FHi: 24°C Lo: 52°FLo: 11°C | Hi: 76°FHi: 24°C Lo: 52°FLo: 11°C |
| POP: 10% |
POP = Probability of Precipitation.
Weather Outlook Updated: 858 PM MST Tue Sep 29 2026 

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Issued: 958 PM MST Tue Sep 29 2026
Discussion
...Arizona remains under a very dynamic weather pattern today with upper level low pressure centered over western Arizona and moisture from Hurricane Polo streaming northward. Continued shower/thunderstorm development is expected through tonight and into early Wednesday morning before coming to an end. A Flood Watch remains in effect for all of northern Arizona through this evening, and has been extended slightly across northeastern Arizona until early Wednesday morning.
Thus far, wides...
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