Weather WorldBoundary Trail, CA Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Boundary Trail Weather Forecast
| TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | THURSDAY | FRIDAY | SATURDAY |
 |  | |  | | |  | | | | |
| Partly Cloudy | Partly Cloudy | Partly Cloudy | Mostly Sunny | Partly Cloudy | Sunny | Mostly Clear | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy |
| Lo: 55°FLo: 13°C | Hi: 80°FHi: 27°C | Lo: 57°FLo: 14°C | Hi: 79°FHi: 26°C | Lo: 56°FLo: 13°C | Hi: 76°FHi: 24°C | Lo: 52°FLo: 11°C | Hi: 76°FHi: 24°C Lo: 52°FLo: 11°C | Hi: 76°FHi: 24°C Lo: 52°FLo: 11°C | Hi: 76°FHi: 24°C Lo: 52°FLo: 11°C | Hi: 76°FHi: 24°C Lo: 52°FLo: 11°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 136 PM PDT Sat Sep 19 2026 
Boundary Trail Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Boundary Trail Weather Map
Boundary Trail Quick Facts
Boundary Trail Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 242 PM PDT Sat Sep 19 2026
Discussion
...High pressure continued to build today with the hottest interior valleys reaching 90 under clear skies. A shallower but persistent marine layer has formed along shore with gray skies all day long around Humboldt Bay.
High pressure will continue to strengthen through the weekend. By Sunday, highs for eastern interior valleys will most likely reach the mid 90s. Marine influence will become increasingly shallow but remain persistent along shore. Weak low pressure moving into the Central...