Air Quality in St. Johns, United States
Drizzle
17.8°C · 53.1% humidity
17.8°
Feels 17.8°
37
Good
Air quality is satisfactory. Enjoy outdoor activities.
Model forecast
Nearby Monitoring Stations
AQI Forecast
37
3pm
50
37
50
6pm
50
50
37
9pm
37
37
37
12am
37
50
37
3am
37
37
37
6am
37
37
37
9am
37
37
37
12pm
50
50
53.1%
Humidity
93.9 km/h
Wind NNE
1021.5 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
What is the weather forecast for St. Johns?
Temperature & Precipitation
PM2.58.9 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
What is the 7-day forecast for St. Johns?
04-09
17.8° 15.8°
2.75 mm
04-10
21.8° 17.4°
1.19 mm
04-11
23.0° 15.6°
0.06 mm
04-12
25.9° 16.5°
04-13
26.7° 17.7°
04-14
29.4° 16.1°
04-15
32.0° 17.3°
Both models agree
Avg diff: 1.7°C
Where are air quality stations near St. Johns?
53
Mandarin Rd Site, Duval, Florida, USA
52
Mandarin Rd Site, Duval, Florida, USA
50
Pepsi Place (PP-PPL), Duval, Florida, USA
59
Mayo Clinic, Duval, Florida, USA
62
Mayo Clinic, Duval, Florida, USA
What cities are near St. Johns?
Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-09T18:49 UTC.