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Shay Lake Weather Forecast
| TODAY | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT |
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| Clearing | Chance of Showers | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of Showers | Chance of Showers | Chance of Rain | Chance of Rain | Chance of Rain | Chance of Rain | Rain |
| Hi: 76°FHi: 24°C | Lo: 50°FLo: 10°C | Hi: 66°FHi: 19°C | Lo: 45°FLo: 7°C | Hi: 56°FHi: 13°C | Lo: 36°FLo: 2°C | Hi: 60°FHi: 16°C | Lo: 40°FLo: 4°C | Hi: 66°FHi: 19°C | Lo: 45°FLo: 7°C | Hi: 66°FHi: 19°C | Lo: 46°FLo: 8°C |
| POP: 20% | POP: 90% | POP: 70% | POP: 80% | POP: 40% | POP: 20% | POP: 40% | POP: 20% | POP: 40% | POP: 20% | POP: 60% |
POP = Probability of Precipitation.
Weather Outlook Updated: 206 AM MDT Tue Sep 01 2026 
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Issued: 1243 AM MDT Tue Sep 1 2026
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KEY MESSAGES:- Widespread showers and thunderstorms this afternoon and evening, with gusty outflow winds of 30-50 mph, brief moderate rainfall, and lightning, strongest storms south of Highway 200.
- Another round of storms Wednesday capable of 30-50 mph outflows and heavy rain rates up to 0.5 inches per hour.
- Persistent active pattern late week into the weekend under southwesterly flow, with a 15% chance of a tropical moisture tap on Sunday or Monday.
Today & Tonight: High pressure rid...