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Shelf Lake Weather Forecast
| REST OF TODAY | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY 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 | Partly Cloudy | Mostly Sunny | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm |
| Hi: 57°FHi: 14°C | Lo: 45°FLo: 7°C | Hi: 59°FHi: 15°C | Lo: 42°FLo: 6°C | Hi: 59°FHi: 15°C | Lo: 37°FLo: 3°C | Hi: 56°FHi: 13°C | Lo: 35°FLo: 2°C | Hi: 59°FHi: 15°C | Lo: 38°FLo: 3°C | Hi: 58°FHi: 14°C | Lo: 37°FLo: 3°C |
| POP: 30% | POP: 70% | POP: 40% | POP: 70% | POP: 30% | POP: 10% | POP: 10% | POP: 60% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1249 PM MDT Thu Sep 17 2026 
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Issued: 138 PM MDT Thu Sep 17 2026
Key Messages
- Active weather pattern through Saturday. Locally heavy rainfall will be the greatest storm threat, although a couple severe storms possible Saturday.
- Near or just above normal temperatures settling below normal for Sunday and Monday.
- Trend toward drier weather by early next week.
Discussion
/Through Thursday/... Issued at 138 PM MDT Thu Sep 17 2026
A very moist south-southwest flow aloft will continue through Friday between an upper level high over Texas and an upper level low to the no...