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Joint Trail Weather Forecast
| TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY |
 |  | |  |  | | | | | | | |
| Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Sunny | Mostly Clear | Mostly Clear | Mostly Clear | Mostly Sunny | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm |
| Lo: 61°FLo: 16°C | Hi: 75°FHi: 24°C | Lo: 55°FLo: 13°C | Hi: 75°FHi: 24°C | Lo: 51°FLo: 11°C | Hi: 75°FHi: 24°C Lo: 51°FLo: 11°C | Hi: 75°FHi: 24°C Lo: 51°FLo: 11°C | Hi: 75°FHi: 24°C | Lo: 51°FLo: 11°C | Hi: 71°FHi: 22°C | Lo: 51°FLo: 11°C | Hi: 75°FHi: 24°C |
| POP: 40% | POP: 30% | POP: 40% | POP: 30% | POP: 30% | POP: 20% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 426 PM MDT Thu Sep 17 2026 
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Meteorlogic Glosserator
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Issued: 602 PM MDT Thu Sep 17 2026
Key Messages
- Heavy rainfall could result in flash flooding and debris flows through late Friday. A few stronger storms may be capable of producing hail and damaging wind as well.
- Flood Watches remain in effect for SE Utah and SW Colorado through this evening.
- Coverage of showers and storms decreases on Saturday with most locations dry on Sunday and Monday.
Discussion
... Issued at 1116 AM MDT Thu Sep 17 2026
ABUNDANT MOISTURE THROUGH FRIDAY:
Low pressure located to our west continues to keep us under...