What is the air quality in Chesterfield today?

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

What is the temperature in Chesterfield right now?

The current temperature in Chesterfield is 17.6°C (feels like 17.6°C). Humidity is 57.1% and wind speed is 68.9 km/h.

Is it safe to go outside in Chesterfield?

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

Air Quality in Chesterfield, United States

Windy

17.6°C · 57.1% humidity

17.6°

Feels 17.6°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Model forecast

Nearby Monitoring Stations

AQI Forecast

37 8pm

50 11pm

75 2am

—

— 5am

—

— 8am

—

— 11am

—

— 2pm

—

— 5pm

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57.1%

Humidity

68.9 km/h

Wind S

1018.1 hPa

Pressure

0.7

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

What is the weather forecast for Chesterfield?

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 Chesterfield?

04-09

20.5° 8.3°

04-10

22.1° 11.9°

04-11

17.2° 14.1°

27.81 mm

04-12

25.3° 16.2°

0.06 mm

04-13

27.0° 18.3°

0.25 mm

04-14

25.1° 20.1°

0.88 mm

04-15

15.9° 7.3°

1.88 mm

Both models agree Avg diff: 5.1°C

Where are air quality stations near Chesterfield?

Arnold West, Missouri, USA

28.5 km

Arnold West, Missouri, USA

28.5 km

What cities are near Chesterfield?

25 Ballwin 25 Manchester 25 Wildwood 25 Creve Coeur 25 Maryland Heights 25 Saint Charles 25 Saint Peters 25 Kirkwood 25 Overland 25 O'Fallon

Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-09T23:28 UTC.