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Horse Flat Tank, AZ Weather Forecast
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Horse Flat Tank Weather Forecast
| TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SUNDAY | MONDAY | TUESDAY | TUESDAY NIGHT | WEDNESDAY |
 |  |  | | |  | | | | |  |
| Mostly Clear | Chance of T-Storm | Partly Cloudy | Chance of T-Storm | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Mostly Clear | Mostly Clear |
| Lo: 80°FLo: 27°C | Hi: 101°FHi: 38°C | Lo: 80°FLo: 27°C | Hi: 100°FHi: 38°C | Lo: 77°FLo: 25°C | Hi: 100°FHi: 38°C Lo: 77°FLo: 25°C | Hi: 100°FHi: 38°C Lo: 77°FLo: 25°C | Hi: 100°FHi: 38°C Lo: 77°FLo: 25°C | Hi: 100°FHi: 38°C Lo: 77°FLo: 25°C | Hi: 100°FHi: 38°C Lo: 77°FLo: 25°C | Hi: 100°FHi: 38°C Lo: 77°FLo: 25°C |
| POP: 20% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 300 PM MST Wed Aug 19 2026 
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Horse Flat Tank Forecast Discussion
Issued: 1131 AM PDT Wed Aug 19 2026
Key Messages
- Warm temperatures continue with above- normal afternoon highs and near-record morning lows.
- Thunderstorm chances return to the forecast starting Thursday as monsoon moisture increases, with the highest confidence and most widespread storm coverage on Friday.
Discussion
...Through Early Next Week.
High pressure remained in place over the region today as temperatures remains on track to similar levels as yesterday. This area of high pressure will slowly shift...