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Kata-Am Arcata Weather Forecast
| TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | MONDAY | MONDAY NIGHT |
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| Patchy Fog | Patchy Fog | Chance of Showers | Patchy Fog | Mostly Cloudy | Mostly Sunny | Partly Cloudy | Partly Cloudy | Chance of Rain | Chance of Rain | Chance of Rain | Partly Cloudy |
| Lo: 48°FLo: 9°C | Hi: 67°FHi: 19°C | Lo: 51°FLo: 11°C | Hi: 60°FHi: 16°C | Lo: 44°FLo: 7°C | Hi: 62°FHi: 17°C | Hi: 64°FHi: 18°C Lo: 42°FLo: 6°C | Hi: 64°FHi: 18°C Lo: 42°FLo: 6°C | Hi: 65°FHi: 18°C Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C Lo: 45°FLo: 7°C | Hi: 66°FHi: 19°C | Hi: 65°FHi: 18°C Lo: 45°FLo: 7°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 137 PM PDT Tue Oct 20 2026 
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Issued: 239 PM PDT Tue Oct 20 2026
Key Messages
- Rain showers possible Wednesday afternoon through Thursday morning, mainly in the south and interior areas.
- Seasonable temperatures, with a higher chance for frost and subfreezing temperatures for the interior late in the week.
- Very high uncertainty by the weekend with equal chances for moderate rain or warm and dry weather.
Discussion
...An upper level low to the southwest of the area is expected to bring some clouds to the area this afternoon and cooler temperatures. A shower or two ...