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Hallmark Park, CA Weather Forecast
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Hallmark Park Weather Forecast
| TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY |
 |  |  |  | | | | | | | | |
| Mostly Clear | Sunny | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Mostly Clear | Partly Cloudy | Mostly Clear | Mostly Clear |
| Lo: 59°FLo: 15°C | Hi: 89°FHi: 32°C | Lo: 59°FLo: 15°C | Hi: 89°FHi: 32°C | Lo: 59°FLo: 15°C | Hi: 85°FHi: 29°C | Hi: 87°FHi: 31°C Lo: 61°FLo: 16°C | Hi: 87°FHi: 31°C Lo: 61°FLo: 16°C | Lo: 61°FLo: 16°C | Hi: 76°FHi: 24°C | Hi: 87°FHi: 31°C Lo: 61°FLo: 16°C | Hi: 87°FHi: 31°C Lo: 61°FLo: 16°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 602 PM PDT Tue Sep 29 2026 
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Issued: 418 PM PDT Tue Sep 29 2026
Key Messages
Updated at 1229 PM PDT Tue Sep 29 2026- Elevated fire weather conditions across the higher terrain through Wednesday
- Areas of moderate HeatRisk across the interior Wednesday through Tuesday
- Minor coastal flooding near high tide for bayshore locations along the San Francisco, San Pablo, and Monterey Bays today through Thursday
Aviation
... (00Z TAFS) Issued at 417 PM PDT Tue Sep 29 2026
VFR conditions prevail across most of the region through the night and into Wednesday. Some IFR-LIFR ce...