Flat Lake, CA Weather Forecast
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Flat Lake Weather Forecast
| TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | WEDNESDAY | THURSDAY | THURSDAY NIGHT | FRIDAY | SATURDAY |
| Mostly Clear | Sunny | Mostly Clear | Mostly Sunny | Partly Cloudy | Partly Cloudy | Partly Cloudy | Sunny | Partly Cloudy | Mostly Clear | Mostly Clear |
| Lo: 49°FLo: 9°C | Hi: 68°FHi: 20°C | Lo: 51°FLo: 11°C | Hi: 69°FHi: 21°C | Lo: 52°FLo: 11°C | Hi: 70°FHi: 21°C Lo: 53°FLo: 12°C | Hi: 70°FHi: 21°C Lo: 53°FLo: 12°C | Hi: 71°FHi: 22°C | Lo: 52°FLo: 11°C | Hi: 69°FHi: 21°C Lo: 51°FLo: 11°C | Hi: 69°FHi: 21°C Lo: 51°FLo: 11°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 310 PM PDT Sat Aug 15 2026 

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Flat Lake Forecast Discussion
Issued: 1100 PM PDT Sat Aug 15 2026
Key Messages
1. Temperatures will remain near season averages through next week.
2. Breezy conditions over typical wind-prone areas including San Luis Reservoir, Lake Isabella and the Mojave Desert Slopes through next week.
Discussion
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A calmer pattern has set up over California for this weekend as the region is caught between two contrasting air masses. A high pressure ridge is currently centered over the southern United States with a low pressure system located in t...
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