Upper Basin Tank, AZ Weather Forecast
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Upper Basin Tank Weather Forecast
| TODAY | TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | FRIDAY | SATURDAY |
| Mostly Cloudy | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Mostly Sunny | Clear | Clear | Mostly Clear | Mostly Clear |
| Hi: 74°FHi: 23°C | Lo: 53°FLo: 12°C | Hi: 64°FHi: 18°C | Lo: 48°FLo: 9°C | Hi: 64°FHi: 18°C | Lo: 46°FLo: 8°C | Hi: 72°FHi: 22°C | Hi: 75°FHi: 24°C Lo: 51°FLo: 11°C | Hi: 75°FHi: 24°C Lo: 51°FLo: 11°C | Hi: 78°FHi: 26°C Lo: 53°FLo: 12°C | Hi: 78°FHi: 26°C Lo: 53°FLo: 12°C |
| POP: 40% | POP: 70% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 302 AM MST Sun Sep 27 2026 

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Issued: 411 AM MST Sun Sep 27 2026
Discussion
...Moisture from tropical cyclones Odalys and Polo will begin overspreading the area, most likely in the high and mid levels at first which will increase cloud cover today, with some light rain starting this afternoon. The lower levels will be dry at first but start moistening up from these initial rain showers. The potential for showers and thunderstorms will continue to increase overnight as moisture continues to increase across AZ.
By Monday a deep West Coast trough approaches with a...
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