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Lost Reservoir Weather Forecast
| TODAY | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | COLUMBUS DAY |
 |  | |  | | | |  | |  | | |
| Mostly Sunny | Chance of T-Storm | Sunny | Mostly Clear | Sunny | Mostly Clear | Mostly Clear | Chance of Showers | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm |
| Hi: 65°FHi: 18°C | Lo: 41°FLo: 5°C | Hi: 61°FHi: 16°C | Lo: 41°FLo: 5°C | Hi: 61°FHi: 16°C | Hi: 61°FHi: 16°C Lo: 41°FLo: 5°C | Hi: 61°FHi: 16°C Lo: 41°FLo: 5°C | Hi: 55°FHi: 13°C | Lo: 41°FLo: 5°C | Hi: 51°FHi: 11°C | Lo: 41°FLo: 5°C | Hi: 45°FHi: 7°C |
| POP: 20% | POP: 30% | POP: 60% | POP: 70% | POP: 70% |
POP = Probability of Precipitation.
Weather Outlook Updated: 641 AM MDT Tue Oct 06 2026 
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Issued: 540 AM MDT Tue Oct 6 2026
Key Messages
- Mostly dry conditions continue through much of the week. Isolated showers and thunderstorms are possible over the San Juans and central mountains each afternoon, especially on Tuesday and Wednesday.
- Temperatures will run 5 to 15 degrees above more seasonal norms.
- A stronger storm system may pass through early next week, bringing higher precipitation chances.
Discussion
... Issued at 946 PM MDT Mon Oct 5 2026
ISOLATED RAIN SHOWERS AND THUNDERSTORMS NEXT COUPLE DAYS:
Deterministic models c...