Round Rock, AZ Weather Forecast
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Round Rock Weather Forecast
| TODAY | TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY |
| Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of Showers | Mostly Clear | Mostly Clear | Mostly Clear | Mostly Clear | Clearing | Partly Cloudy | Partly Cloudy |
| Hi: 67°FHi: 19°C | Lo: 48°FLo: 9°C | Hi: 62°FHi: 17°C | Lo: 41°FLo: 5°C | Hi: 55°FHi: 13°C | Hi: 58°FHi: 14°C Lo: 39°FLo: 4°C | Hi: 58°FHi: 14°C Lo: 39°FLo: 4°C | Hi: 63°FHi: 17°C Lo: 40°FLo: 4°C | Hi: 63°FHi: 17°C Lo: 40°FLo: 4°C | Hi: 61°FHi: 16°C | Lo: 41°FLo: 5°C | Hi: 63°FHi: 17°C |
| POP: 20% | POP: 50% | POP: 70% | POP: 60% | POP: 30% | POP: 10% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1048 AM MDT Mon Oct 12 2026 

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Issued: 1014 AM MST Mon Oct 12 2026
Discussion
...The remnants of Tropical Storm Rachel continue to lift north, while a strong upper level low digs down through the Great Basin. Showers and thunderstorms continue to move northward through central Arizona overnight, with additional storms expected through this afternoon.
Model soundings show PWATs dropping off quite a bit from previous days but still remaining near or above the 75 percentile. Heavy rain will still be a threat but with dry air pushing in aloft and moisture being large...
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