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Ktnn-Am Window Rock Weather Forecast
| REST OF TODAY | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | WEDNESDAY |
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| Chance of T-Storm | Partly Cloudy | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm |
| Hi: 89°FHi: 32°C | Lo: 61°FLo: 16°C | Hi: 89°FHi: 32°C | Lo: 62°FLo: 17°C | Hi: 85°FHi: 29°C | Lo: 60°FLo: 16°C | Hi: 81°FHi: 27°C | Hi: 80°FHi: 27°C Lo: 57°FLo: 14°C | Hi: 80°FHi: 27°C Lo: 57°FLo: 14°C | Lo: 57°FLo: 14°C | Hi: 81°FHi: 27°C Lo: 57°FLo: 14°C | Hi: 81°FHi: 27°C Lo: 57°FLo: 14°C |
| POP: 10% | POP: 10% | POP: 20% | POP: 30% | POP: 70% | POP: 60% | POP: 50% | POP: 50% | POP: 30% | POP: 10% | POP: 10% |
POP = Probability of Precipitation.
Weather Outlook Updated: 302 PM MST Thu Aug 27 2026 
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Issued: 354 PM MST Thu Aug 27 2026
Discussion
...A strong high pressure system will remain centered over the Arizona/New Mexico border through Friday resulting in daytime temperatures in the mid 80 to lower 90s in the mountains to 105 to 110 at elevations below 4000 feet in our forecast area. A few record high temperatures will likely be set. Due to the hot temperatures an Extreme Heat Warning remains in effect for the lower portions of the Grand Canyon and Yavapai County through Friday. Enough moisture will remain for the daily d...