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City of Portola, CAPortola, CA Weather Forecast
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Portola Weather Forecast
| TODAY | TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | TUESDAY |
 |  | |  |  | | | |  |  | | |
| Chance of T-Storm | Chance of Showers | Chance of T-Storm | Clear | Sunny | Clear | Clear | Clear | Partly Cloudy | Partly Cloudy | Clear | Clear |
| Hi: 74°FHi: 23°C | Lo: 42°FLo: 6°C | Hi: 72°FHi: 22°C | Lo: 41°FLo: 5°C | Hi: 77°FHi: 25°C | Lo: 44°FLo: 7°C | Hi: 80°FHi: 27°C Lo: 47°FLo: 8°C | Hi: 80°FHi: 27°C Lo: 47°FLo: 8°C | Hi: 81°FHi: 27°C Lo: 48°FLo: 9°C | Hi: 81°FHi: 27°C Lo: 48°FLo: 9°C | Hi: 82°FHi: 28°C Lo: 48°FLo: 9°C | Hi: 82°FHi: 28°C Lo: 48°FLo: 9°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 231 AM PDT Wed Sep 16 2026 
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Issued: 1221 PM PDT Wed Sep 16 2026
Key Messages
- Gusty winds and minor impacts to fire, recreation, and air and ground travel expected through Thursday.
- Chances of rain and isolated thunderstorms increase this afternoon near the Oregon border, and linger through Thursday.
- Dry and warmer weather is favored Friday into the weekend. Rain, thunderstorms, and breezy winds may return early next week.
Discussion
...- An upper low pressure currently over northern CA will move through the area today through Friday. The primary impact of this w...