Guy Lake, CA Weather Forecast
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Guy Lake Weather Forecast
| TODAY | TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | SATURDAY |
| Sunny | Partly Cloudy | Clearing | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy |
| Hi: 90°FHi: 32°C | Lo: 60°FLo: 16°C | Hi: 88°FHi: 31°C | Lo: 57°FLo: 14°C | Hi: 84°FHi: 29°C | Hi: 87°FHi: 31°C Lo: 54°FLo: 12°C | Hi: 87°FHi: 31°C Lo: 54°FLo: 12°C | Hi: 87°FHi: 31°C Lo: 53°FLo: 12°C | Hi: 87°FHi: 31°C Lo: 53°FLo: 12°C | Lo: 52°FLo: 11°C | Hi: 86°FHi: 30°C Lo: 52°FLo: 11°C | Hi: 86°FHi: 30°C Lo: 52°FLo: 11°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 136 AM PDT Sun Aug 23 2026 

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Guy Lake Forecast Discussion
Issued: 1211 AM PDT Sun Aug 23 2026
Key Messages
- Generally mild, seasonable weather is expected for the next week.
Discussion
...Weak high pressure rebuilds over the area today bringing slightly warmer temperatures this afternoon for the interior. Most interior areas will see highs in the 90s with a stray triple digit possible for the warmest valleys. A deep marine layer continues to bring stratus deep inland into the river valleys, however high pressure will make this slightly shallower than previous days. Breezy coastal winds this ...
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