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Upper Slide Lake Weather Forecast
| THIS AFTERNOON | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT |
 |  | |  | |  |  | | |  |  | |
| Partly Cloudy | Chance of T-Storm | Partly Cloudy | Partly Cloudy | Clearing | Mostly Clear | Sunny | Mostly Clear | Mostly Sunny | Chance of Showers | Chance of T-Storm | Chance of T-Storm |
| Hi: 61°FHi: 16°C | Lo: 41°FLo: 5°C | Hi: 59°FHi: 15°C | Lo: 40°FLo: 4°C | Hi: 60°FHi: 16°C | Lo: 41°FLo: 5°C | Hi: 61°FHi: 16°C | Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C | Hi: 61°FHi: 16°C | Lo: 45°FLo: 7°C |
| POP: 30% | POP: 20% | POP: 50% | POP: 70% |
POP = Probability of Precipitation.
Weather Outlook Updated: 347 PM MDT Tue Sep 01 2026 
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Issued: 746 PM MDT Tue Sep 1 2026
Key Messages
- A few showers and thunderstorms are moving across portions western and southern WY this evening. Frequent lightning and a brief downpour may be possible with the stronger storms.
- Mainly dry and warm from Wednesday through Friday. Low humidity and a gusty wind will bring elevated to potentially critical fire weather each afternoon.
- The next better chance of showers moves in this weekend, most likely on Sunday with the next plume of monsoonal moisture.
Discussion
... Issued at 134 AM MDT...