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| TODAY | TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT |
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| 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 | Chance of T-Storm | Chance of T-Storm |
| Hi: 80°FHi: 27°C | Lo: 58°FLo: 14°C | Hi: 77°FHi: 25°C | Lo: 56°FLo: 13°C | Hi: 77°FHi: 25°C | Lo: 55°FLo: 13°C | Hi: 75°FHi: 24°C | Lo: 55°FLo: 13°C | Hi: 77°FHi: 25°C | Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°C | Lo: 55°FLo: 13°C |
| POP: 30% | POP: 20% | POP: 40% | POP: 50% | POP: 30% | POP: 10% | POP: 50% | POP: 40% | POP: 50% | POP: 20% | POP: 40% | POP: 10% |
POP = Probability of Precipitation.
Weather Outlook Updated: 853 AM MST Sun Sep 13 2026 
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Issued: 419 AM MST Sun Sep 13 2026
Discussion
...The main story this week will be the passage of multiple shortwaves interacting with monsoon moisture that remains across the state. The first will arrive this afternoon as an upper level Low traveling along the northern Tier trails a wave across the state. Expect thunderstorm coverage to increase today with individual storm motion moving off to the northeast. The highest POPs favor the western zones today, with the best POPs moving into the eastern zones on Monday as the wave pushe...