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City of Arcata, CAArcata, CA 7-Day Night Weather Forecast
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Arcata, CA Weather Forecast
Arcata, CA Weather Forecast Date: 244 PM PDT Thu Aug 13 2026
The area/counties/county of: Northern Coastal Humboldt, including the cities of: Eureka, Samoa, Arcata, Arcata Arpt, Fieldbrook, Fernbridge, and Fortuna.or toggle through each period.
Tonight... Cloudy. Patchy fog overnight. Slight chance of rain showers overnight. Lows 48 to 58. Northwest wind around 10 mph.
Friday... Cloudy. Patchy dense fog in the morning. Slight chance of rain showers in the morning. Highs 59 to 72. Northwest wind around 10 mph.
Friday Night... Cloudy. Patchy fog overnight. Lows 48 to 58. Northwest wind around 10 mph.
Saturday... Mostly cloudy. Patchy fog. Highs 59 to 72. Northwest wind around 10 mph.
Saturday Night... Mostly cloudy. Patchy fog. Lows 47 to 57. Highs 61 to 76. North wind up to 10 mph.
Sunday... Mostly cloudy. Patchy fog. Lows 47 to 57. Highs 61 to 76. North wind up to 10 mph.
Sunday Night... Mostly cloudy. Patchy fog. Lows 47 to 57.
Monday... Cloudy. Patchy fog. Highs 60 to 74.
Monday Night... Mostly cloudy. Patchy fog. Lows 48 to 58. Highs 60 to 75.
Tuesday... Mostly cloudy. Patchy fog. Lows 48 to 58. Highs 60 to 75.
Wednesday... Mostly cloudy. Patchy fog. Lows 48 to 58. Highs 60 to 75.
POP = Probability of Precipitation
Arcata Radar Loop
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