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Hercules Weather Forecast
| REST OF TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY |
 |  |  |  |  |  | | | | | | |
| Mostly Clear | Sunny | Partly Cloudy | Mostly Cloudy | Mostly Cloudy | Partly Cloudy | Partly Cloudy | Mostly Cloudy | Mostly Cloudy | Sunny | Clear | Partly Cloudy |
| Lo: 45°FLo: 7°C | Hi: 70°FHi: 21°C | Lo: 49°FLo: 9°C | Hi: 69°FHi: 21°C | Lo: 49°FLo: 9°C | Hi: 69°FHi: 21°C | Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C | Hi: 69°FHi: 21°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 322 AM PDT Wed Oct 28 2026 
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Issued: 440 AM PDT Wed Oct 28 2026
Key Messages
Updated at 1227 AM PDT Wed Oct 28 2026- Moderate coastal flooding at high tide for Bayshore and Pacific Coast locations through the week
- Seasonal to slightly below seasonal temperatures through the extended forecast
- Potential for rain this weekend and again early to mid next week
Aviation
... (12Z TAFS) Issued at 434 AM PDT Wed Oct 28 2026
VFR will persist through the forecast period with the exception of some patchy dense fog in the valleys of the North Bay.
Vicinity of SFO...VFR with li...