Weather WorldSiphon Lake, CA Weather Forecast
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Siphon Lake Weather Forecast
| TODAY | TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | THURSDAY | THURSDAY NIGHT | FRIDAY |
 |  |  |  | | | | | | | | |
| Sunny | Mostly Clear | Mostly Cloudy | Clearing | Sunny | Mostly Clear | Sunny | Mostly Clear | Clear | Clear | Mostly Clear | Mostly Clear |
| Hi: 86°FHi: 30°C | Lo: 60°FLo: 16°C | Hi: 86°FHi: 30°C | Lo: 60°FLo: 16°C | Hi: 86°FHi: 30°C | Lo: 56°FLo: 13°C | Hi: 86°FHi: 30°C | Lo: 56°FLo: 13°C | Hi: 86°FHi: 30°C Lo: 56°FLo: 13°C | Hi: 86°FHi: 30°C Lo: 56°FLo: 13°C | Hi: 80°FHi: 27°C Lo: 56°FLo: 13°C | Hi: 80°FHi: 27°C Lo: 56°FLo: 13°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 239 AM PDT Sat Oct 03 2026 
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Issued: 639 AM PDT Sat Oct 3 2026
Key Messages
- Night and morning low clouds and fog at the coast north of Cape Blanco, and locally near Brookings during the next week.
- Inland high temperatures trend hotter today and Sunday, around 15 to 20 degrees above normal. Heatrisk is elevated for sensitive groups or those spending extended time outdoors without adequate cooling/hydration.
- Very warm and dry conditions this weekend will bring some elevated fire weather concerns due to near summer-like dryness. But, with weak winds, critical f...