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City of Eureka, CAEureka, CA 7-Day Night Weather Forecast
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Eureka, CA Weather Forecast
Eureka, CA Weather Forecast Date: 446 AM PDT Tue Sep 08 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.
Today... Mostly cloudy then becoming mostly sunny early in the afternoon then becoming mostly cloudy. Highs 68 to 80. East wind around 5 mph shifting to the northwest in the afternoon.
Tonight... Partly cloudy. Lows 51 to 61. North wind around 5 mph shifting to the east overnight.
Wednesday... Mostly sunny. Highs 72 to 86. East wind around 5 mph shifting to the northwest in the afternoon.
Wednesday Night... Partly cloudy. Lows 52 to 62. North wind around 5 mph.
Thursday... Mostly cloudy. Highs 67 to 81. North wind around 10 mph.
Thursday Night... Mostly cloudy. Lows 50 to 60.
Friday... Mostly cloudy in the morning then becoming mostly sunny. Patchy fog. Highs 63 to 73.
Friday Night... Mostly cloudy. Patchy fog. Lows 47 to 57. Highs 59 to 73.
Saturday... Mostly cloudy. Patchy fog. Lows 47 to 57. Highs 59 to 73.
Saturday Night... Partly cloudy. Lows 46 to 56. Highs 59 to 74.
Sunday... Partly cloudy. Lows 46 to 56. Highs 59 to 74.
POP = Probability of Precipitation
Eureka Radar Loop
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