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Tranquillity Weather Forecast
| TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY |
 |  | |  | | |  | | | | | |
| Partly Cloudy | Sunny | Partly Cloudy | Partly Sunny | Partly Cloudy | Mostly Clear | Mostly Clear | Sunny | Mostly Clear | Sunny | Mostly Clear | Mostly Clear |
| Lo: 55°FLo: 13°C | Hi: 89°FHi: 32°C | Lo: 59°FLo: 15°C | Hi: 89°FHi: 32°C | Lo: 60°FLo: 16°C | Hi: 89°FHi: 32°C Lo: 59°FLo: 15°C | Hi: 89°FHi: 32°C Lo: 59°FLo: 15°C | Hi: 91°FHi: 33°C | Lo: 61°FLo: 16°C | Hi: 95°FHi: 35°C | Hi: 99°FHi: 37°C Lo: 61°FLo: 16°C | Hi: 99°FHi: 37°C Lo: 61°FLo: 16°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 310 PM PDT Fri Sep 18 2026 
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Issued: 353 PM PDT Fri Sep 18 2026
Key Messages
1. Minor Heat Risk the rest of the week into next week with a warmup over the weekend after today.
2. MinRHs continue to be below 25% in the upper portions of the Sierra Nevada with some areas below 15%.
3. A moderate heat risk mid to late week next week is likely. Thursday looks to be the hottest day next week with a greater than 70% chance of a moderate heat risk.
Discussion
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Time for your favorite part of the day, reading the Area Forecast Discussion! Expect cooler temperatures toda...