Eureka, CA Weather Forecast
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| TODAY | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | MONDAY |
| Mostly Cloudy | Partly Cloudy | Mostly Sunny | Partly Cloudy | Mostly Cloudy | Mostly Cloudy | Patchy Fog | Patchy Fog | Patchy Fog | Partly Cloudy | Partly Cloudy | Partly Cloudy |
| Hi: 75°FHi: 24°C | Lo: 57°FLo: 14°C | Hi: 80°FHi: 27°C | Lo: 58°FLo: 14°C | Hi: 75°FHi: 24°C | Lo: 56°FLo: 13°C | Hi: 69°FHi: 21°C | Hi: 67°FHi: 19°C Lo: 53°FLo: 12°C | Hi: 67°FHi: 19°C Lo: 53°FLo: 12°C | Hi: 67°FHi: 19°C Lo: 52°FLo: 11°C | Hi: 67°FHi: 19°C Lo: 52°FLo: 11°C | Hi: 67°FHi: 19°C Lo: 52°FLo: 11°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 446 AM PDT Tue Sep 08 2026 

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Issued: 448 AM PDT Tue Sep 8 2026
Key Messages
- Above normal temperatures likely Tuesday through Thursday, including along the coast.
- Locally elevated fire danger for the higher elevations Tuesday and Wednesday.
Discussion
...Light offshore flow is mostly keeping coastal stratus from reforming, and what does form around Humboldt Bay will quickly erode into Tuesday morning.
Building high pressure Tuesday through Thursday will bring much warmer than normal temperatures, both to the interior and the coast. On Tuesday, temperatures are f...
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