What is the air quality in Arcata today?

The current Air Quality Index (AQI) in Arcata is 12 (Good). PM2.5 concentration is 2.84 µg/m³.

What is the temperature in Arcata right now?

The current temperature in Arcata is 16.4°C (feels like 16.4°C). Humidity is 97.8% and wind speed is 30.4 km/h.

Is it safe to go outside in Arcata?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0 (Moderate).

Air Quality in Arcata, United States

Overcast

16.4°C · 97.8% humidity

16.4°

Feels 16.4°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Calibrated model

Nearby Monitoring Stations

AQI Forecast

75 12pm

75 3pm

50 6pm

37 9pm

37 12am

50 3am

50 6am

50 9am

97.8%

Humidity

30.4 km/h

Wind W

1011.9 hPa

Pressure

2.9

UV Moderate

GoodModerateUSGUnhealthyVery UnhealthyHazardous

What is the weather forecast for Arcata?

Temperature & Precipitation

PM2.52.84 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX2.9

Moderate

What is the 7-day forecast for Arcata?

04-09

16.4° 7.7°

04-10

14.9° 6.8°

04-11

11.3° 5.7°

0.62 mm

04-12

8.9° 2.0°

0.5 mm

04-13

10.8° 1.3°

1.88 mm

04-14

12.5° 2.9°

04-15

14.4° 4.9°

Both models agree Avg diff: 2.8°C

What cities are near Arcata?

12 Bayside 12 McKinleyville 25 Eureka 20 Redding 3 Grants Pass 12 Central Point 16 Ukiah 23 Chico 23 Paradise 24 Klamath Falls

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-09T15:10 UTC.