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Big Flat Tank Weather Forecast
| TODAY | TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | WEDNESDAY | THURSDAY | FRIDAY |
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| Mostly Sunny | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Mostly Clear | Mostly Clear | Mostly Clear | Mostly Clear | Mostly Clear |
| Hi: 102°FHi: 39°C | Lo: 77°FLo: 25°C | Hi: 101°FHi: 38°C | Lo: 75°FLo: 24°C | Hi: 99°FHi: 37°C | Hi: 101°FHi: 38°C Lo: 75°FLo: 24°C | Hi: 101°FHi: 38°C Lo: 75°FLo: 24°C | Hi: 101°FHi: 38°C Lo: 75°FLo: 24°C | Hi: 101°FHi: 38°C Lo: 75°FLo: 24°C | Hi: 101°FHi: 38°C Lo: 75°FLo: 24°C |
| POP: 10% | POP: 10% | POP: 10% | POP: 10% |
POP = Probability of Precipitation.
Weather Outlook Updated: 948 AM MST Sat Aug 22 2026 
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Big Flat Tank Forecast Discussion
Issued: 1004 AM MST Sat Aug 22 2026
Discussion
...High pressure aloft centered over northeast New Mexico and southeast Colorado early Saturday morning will slowly drift southward through Tuesday then westward toward the end of next week becoming centered over the southern portions of Arizona/New Mexico border. The net result will be daily chances for showers and thunderstorms across northern Arizona through Monday or Tuesday then diminished chances as the position of the high will allow for a bit drier air and a more stable air mas...