What is the air quality in Marion today?

The current Air Quality Index (AQI) in Marion is 54 (Moderate). PM2.5 concentration is 13.5 µg/m³.

What is the temperature in Marion right now?

The current temperature in Marion is 17.6°C (feels like 17.6°C). Humidity is 57.0% and wind speed is 55.8 km/h.

Air Quality in Marion, United States

Windy

17.6°C · 57.0% humidity

17.6°

Feels 17.6°

Moderate

Unusually sensitive people should consider reducing prolonged outdoor exertion.

Model forecast

Nearby Monitoring Stations

AQI Forecast

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View AQI history for Marion →

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

57.0%

Humidity

55.8 km/h

Wind ENE

1020.4 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

13.5 µg/m³

PM10

27.4 µg/m³

050100150200300500

What is the weather forecast for Marion?

Temperature & Precipitation

PM2.513.5 µg/m³ ✓ WHO

Moderate

PM1027.4 µg/m³

Good

UV INDEX0.0

Low

What is the 7-day forecast for Marion?

10-21

22.3° 11.7°

0.25 mm

10-22

24.9° 8.4°

10-23

11.4° 6.9°

2.12 mm

10-24

24.0° 10.5°

10-25

17.5° 2.3°

10-26

25.7° 6.5°

10-27

16.6° 2.1°

Both models agree Avg diff: 3.9°C

What cities are near Marion?

54 Carbondale 57 Mount Vernon 34 Cape Girardeau 54 Paducah 54 Sikeston 40 Henderson 40 Evansville 44 Belleville 40 O'Fallon 15 Farmington

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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-10-21T00:30 UTC.