New York, NY 57° Los Angeles, CA 74° Chicago, IL 43° Houston, TX 74° Miami, FL 83° Phoenix, AZ 77° Seattle, WA 56° Denver, CO 62° Toronto, ON 45° Vancouver, BC 57°
WeatherLive › Missouri › Florissant › Air Quality

Florissant, MO Air Quality

← Florissant

Air quality in Florissant

The US Air Quality Index (EPA) grades air from 0 to 500 using fine particles (PM2.5/PM10), ozone and nitrogen dioxide. 0-50 is Good, 51-100 Moderate, 101-150 Unhealthy for Sensitive Groups, and anything higher affects everyone.

US AQI · EPA
28
Good
PM2.5
2.3 µg/m³
WHO guideline 15
PM10
2.4 µg/m³
WHO guideline 45
NO₂ · O₃
4 · 59
µg/m³

Hour by hour (12h)

US EPA AQI
2:00 PM 💨 PM2.5 2.3 µg/m³
28Good
3:00 PM 💨 PM2.5 2.2 µg/m³
28Good
4:00 PM 💨 PM2.5 1.7 µg/m³
28Good
5:00 PM 💨 PM2.5 1.7 µg/m³
27Good
6:00 PM 💨 PM2.5 1.7 µg/m³
27Good
7:00 PM 💨 PM2.5 1.6 µg/m³
27Good
8:00 PM 💨 PM2.5 1.5 µg/m³
27Good
9:00 PM 💨 PM2.5 1.5 µg/m³
27Good
10:00 PM 💨 PM2.5 1.7 µg/m³
27Good
11:00 PM 💨 PM2.5 1.7 µg/m³
26Good
12:00 AM 💨 PM2.5 1.6 µg/m³
26Good
1:00 AM 💨 PM2.5 1.5 µg/m³
25Good

Next few days

daily max · US EPA AQI
Thu 💨 Good · UV Low
40
Fri 💨 Good · UV Low
31
Sat 💨 Moderate · UV Low
89
Sun 💨 Moderate · UV Moderate
79
Mon 💨 Good · UV Moderate
37

Weather map — Florissant

Florissant →
Powered by NWS/NOAA guidance, multi-model forecasts and official environmental feeds · NOAA/NWS · EPA AirNow · MET Norway · global models
Updated: 2:15 PM