What is the air quality in Upper Alton today?

The current Air Quality Index (AQI) in Upper Alton is 36 (Good). PM2.5 concentration is 8.63 µg/m³.

What is the temperature in Upper Alton right now?

The current temperature in Upper Alton is 21.1°C (feels like 21.1°C). Humidity is 67.0% and wind speed is 31.6 km/h.

Is it safe to go outside in Upper Alton?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.7 (Low).

Air Quality in Upper Alton, United States

Partly Cloudy

21.1°C · 67.0% humidity

21.1°

Feels 21.1°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Calibrated model

Nearby Monitoring Stations

AQI Forecast

25 6pm

36 9pm

29 12am

26 3am

26 6am

25 9am

25 12pm

25 3pm

Air Quality Index Trend

46h · 4 stn

View full history →

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

67.0%

Humidity

31.6 km/h

Wind NW

1012.9 hPa

Pressure

0.7

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

8.63 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Upper Alton?

Temperature & Precipitation

PM2.5 Trend

46h · 4 stations

PM2.58.63 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.7

Low

What is the 7-day forecast for Upper Alton?

06-09

30.7° 14.6°

7.13 mm

06-10

28.2° 21.6°

57.62 mm

06-11

27.6° 18.0°

06-12

29.7° 20.5°

0.38 mm

06-13

26.2° 23.4°

0.5 mm

06-14

30.9° 16.0°

21.75 mm

06-15

32.3° 24.2°

Both models agree Avg diff: 4.0°C

Where are air quality stations near Upper Alton?

Jerseyvl, Illinois, USA

27.0 km PM2.5: 6.7 µg/m³

Jerseyvl, Illinois, USA

27.0 km PM2.5: 6.7 µg/m³

What cities are near Upper Alton?

33 Alton 30 Godfrey 32 Old Jamestown 32 Spanish Lake 31 Florissant 31 Edwardsville 31 Ferguson 32 Granite City 31 Hazelwood 29 Overland

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

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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-06-09T02:03 UTC.