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Marshall Tank, AZ Weather Forecast
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Marshall Tank Weather Forecast
| TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | TUESDAY | WEDNESDAY | THURSDAY |
 |  |  |  | |  | | | | | |
| Chance of T-Storm | Chance of T-Storm | Partly Cloudy | Sunny | Partly Cloudy | Partly Cloudy | Partly Cloudy | Mostly Clear | Mostly Clear | Mostly Clear | Mostly Clear |
| Lo: 78°FLo: 26°C | Hi: 101°FHi: 38°C | Lo: 78°FLo: 26°C | Hi: 102°FHi: 39°C | Lo: 80°FLo: 27°C | Hi: 101°FHi: 38°C Lo: 80°FLo: 27°C | Hi: 101°FHi: 38°C Lo: 80°FLo: 27°C | Hi: 102°FHi: 39°C Lo: 78°FLo: 26°C | Hi: 102°FHi: 39°C Lo: 78°FLo: 26°C | Hi: 102°FHi: 39°C Lo: 78°FLo: 26°C | Hi: 102°FHi: 39°C Lo: 78°FLo: 26°C |
| POP: 20% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 300 PM MST Thu Aug 20 2026 
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Marshall Tank Forecast Discussion
Issued: 433 PM PDT Thu Aug 20 2026
Key Messages
- Warm temperatures continue with above- normal afternoon highs and near-record morning lows.
- Thunderstorm chances return to the forecast today as monsoon moisture increases, with the highest confidence and most widespread storm coverage on Friday.
Discussion
...Through Early Next Week.
Under partly to mostly sunny skies, high pressure remained in place over the region today. While moisture has notably increased in portions of the Colorado River Valley and so...