What is the air quality in Mattoon today?

The current Air Quality Index (AQI) in Mattoon is 26 (Good). PM2.5 concentration is 6.15 µg/m³.

What is the temperature in Mattoon right now?

The current temperature in Mattoon is 17.7°C (feels like 17.7°C). Humidity is 40.6% and wind speed is 22.2 km/h.

Is it safe to go outside in Mattoon?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 2.2 (Moderate).

Air Quality in Mattoon, United States

Clear

17.7°C · 40.6% humidity

17.7°

Feels 17.7°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Model forecast

Nearby Monitoring Stations

AQI Forecast

24 2pm

26 5pm

25 8pm

25 11pm

25 2am

25 5am

25 8am

24 11am

Air Quality Index Trend

24h · 1 stn

View full history →

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

40.6%

Humidity

22.2 km/h

Wind ESE

1020.9 hPa

Pressure

2.2

UV Moderate

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

6.15 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Mattoon?

Temperature & Precipitation

PM2.5 Trend

24h · 1 station

PM2.56.15 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX2.2

Moderate

Both models agree Avg diff: 4.3°C

What cities are near Mattoon?

26 Charleston 19 Urbana 19 Champaign 16 Terre Haute 16 Springfield 13 Vincennes 24 Bloomington 24 Normal 21 Mount Vernon 16 Crawfordsville

Get AQI alerts for Mattoon

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ModerateAQI > 50 Unhealthy for Sensitive GroupsAQI > 100 UnhealthyAQI > 150 Very UnhealthyAQI > 200

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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-09-22T22:44 UTC.