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Arcata High School Weather Forecast
| TODAY | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | TUESDAY | TUESDAY NIGHT | WEDNESDAY |
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| Rain Showers | Patchy Fog | Patchy Fog | Patchy Fog | Mostly Sunny | Partly Cloudy | Partly Cloudy | Chance of Rain | Chance of Rain | Partly Cloudy | Patchy Fog | Patchy Fog |
| Hi: 58°FHi: 14°C | Lo: 46°FLo: 8°C | Hi: 59°FHi: 15°C | Lo: 41°FLo: 5°C | Hi: 66°FHi: 19°C | Lo: 44°FLo: 7°C | Hi: 65°FHi: 18°C | Hi: 65°FHi: 18°C Lo: 46°FLo: 8°C | Hi: 65°FHi: 18°C Lo: 46°FLo: 8°C | Hi: 64°FHi: 18°C | Hi: 63°FHi: 17°C Lo: 45°FLo: 7°C | Hi: 63°FHi: 17°C Lo: 45°FLo: 7°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 137 AM PDT Thu Oct 22 2026 
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Issued: 219 PM PDT Thu Oct 22 2026
Key Messages
- Rain showers are expected to continue to taper off this afternoon and evening.
- Dry, cooler and breezy conditions are expected Friday with frost or freezing temperatures possible Friday night/Saturday morning.
- There is the potential for a pattern change to cooler and wetter weather. This may start as early as Sunday or more likely hold off until early or mid next week.
Discussion
...An upper level low pressure system will continue its journey east through Central California today with a...