Thumb Rock Picnic Area, AZ Weather Forecast
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Thumb Rock Picnic Area Weather Forecast
| TODAY | TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT |
| Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Mostly Clear | Mostly Sunny | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm |
| Hi: 93°FHi: 34°C | Lo: 68°FLo: 20°C | Hi: 88°FHi: 31°C | Lo: 66°FLo: 19°C | Hi: 90°FHi: 32°C | Lo: 68°FLo: 20°C | Hi: 93°FHi: 34°C | Lo: 69°FLo: 21°C | Hi: 92°FHi: 33°C | Lo: 68°FLo: 20°C | Hi: 91°FHi: 33°C | Lo: 68°FLo: 20°C |
| POP: 60% | POP: 70% | POP: 50% | POP: 30% | POP: 10% | POP: 40% | POP: 30% | POP: 50% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 212 AM MST Sun Aug 30 2026 

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Issued: 248 AM MST Sun Aug 30 2026
Discussion
...Current radar shows scattered showers east of Tucson with a few embedded weak thunderstorms. To the south in Sonora there is a large decaying MCS. CAMs show this MCS sending an outflow into southern Arizona later this morning, but will likely not lead to any storm formation, just send some reinforcing surface moisture. Aloft high pressure is centered near Oklahoma and Arkansas and a trough is sitting over the west coast. The upper air pattern will more or less remain in this state w...
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