What is the air quality in Eureka today?

The current Air Quality Index (AQI) in Eureka is 26 (Good). PM2.5 concentration is 6.25 µg/m³.

What is the temperature in Eureka right now?

The current temperature in Eureka is 13.9°C (feels like 13.9°C). Humidity is 83.2% and wind speed is 79.3 km/h.

Is it safe to go outside in Eureka?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 14.9 (Extreme).

Air Quality in Eureka, United States

Windy

13.9°C · 83.2% humidity

13.9°

Feels 13.9°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Model forecast

Nearby Monitoring Stations

AQI Forecast

27 12pm

26 3pm

27 6pm

27 9pm

27 12am

27 3am

27 6am

27 9am

View AQI history for Eureka →

Eureka's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

83.2%

Humidity

79.3 km/h

Wind N

1014.1 hPa

Pressure

14.9

UV Extreme

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

6.25 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Eureka?

Temperature & Precipitation

PM2.56.25 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX14.9

Extreme

Both models agree Avg diff: 0.7°C

What cities are near Eureka?

27 Bayside 27 Arcata 26 McKinleyville 27 Redding 28 Grants Pass 56 Ukiah 68 Central Point 23 Chico 24 Clearlake 23 Paradise

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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-07-21T22:37 UTC.