What is the air quality in Mount Vernon today?

The current Air Quality Index (AQI) in Mount Vernon is 25 (Good). PM2.5 concentration is 5.9 µg/m³.

What is the temperature in Mount Vernon right now?

The current temperature in Mount Vernon is 14.4°C (feels like 14.4°C). Humidity is 68.8% and wind speed is 72.2 km/h.

Is it safe to go outside in Mount Vernon?

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

Air Quality in Mount Vernon, United States

Windy

14.4°C · 68.8% humidity

14.4°

Feels 14.4°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Model forecast

Nearby Monitoring Stations

AQI Forecast

37 8pm

37 11pm

37 2am

37 5am

37 8am

50 11am

25 2pm

25 5pm

68.8%

Humidity

72.2 km/h

Wind S

1021.4 hPa

Pressure

0.7

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

What is the weather forecast for Mount Vernon?

Temperature & Precipitation

PM2.55.9 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.7

Low

What is the 7-day forecast for Mount Vernon?

04-09

17.5° 8.3°

04-10

19.8° 8.9°

04-11

17.7° 13.1°

10.19 mm

04-12

23.8° 13.9°

0.25 mm

04-13

24.4° 17.7°

1.63 mm

04-14

24.7° 19.6°

0.44 mm

04-15

16.4° 9.0°

18.44 mm

Both models agree Avg diff: 4.9°C

What cities are near Mount Vernon?

33 Marion 25 Carbondale 25 O'Fallon 25 Belleville 25 Fairview Heights 25 Collinsville 25 Edwardsville 25 East Saint Louis 25 Granite City 25 St. Louis

Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-09T23:58 UTC.