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Altonah Weather Forecast
| TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | COLUMBUS DAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY |
 |  |  |  |  | |  | |  |  | | |
| Mostly Clear | Partly Cloudy | Partly Cloudy | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of Showers | Chance of Showers | Chance of Showers | Chance of Showers | Chance of Showers | Chance of Showers |
| Lo: 50°FLo: 10°C | Hi: 79°FHi: 26°C | Lo: 50°FLo: 10°C | Hi: 71°FHi: 22°C | Lo: 50°FLo: 10°C | Hi: 61°FHi: 16°C | Lo: 49°FLo: 9°C | Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C | Hi: 61°FHi: 16°C Lo: 41°FLo: 5°C | Hi: 61°FHi: 16°C Lo: 41°FLo: 5°C | Hi: 60°FHi: 16°C |
| POP: 40% | POP: 100% | POP: 100% | POP: 90% | POP: 80% | POP: 40% | POP: 50% | POP: 50% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1242 PM MDT Thu Oct 08 2026 
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Issued: 1001 PM MDT Thu Oct 8 2026
Key Messages
- Widespread moderate to heavy rainfall threat increases late Saturday through Sunday as a remnant tropical system and associated deep moisture lift through and interact with an approaching trough. Widespread water amounts of 1 to 3 inches are forecast, with locally higher amounts in excess of 3 inches possible, particularly in high terrain and areas along and northwest of the circulation track.
- There is also a wind threat associated with this storm, particularly in the higher terrain,...