Air Quality in Florissant, United States
Partly Cloudy
17.1°C · 66.5% humidity
17.1°
Feels 17.1°
27
Good
Air quality is satisfactory. Enjoy outdoor activities.
4 stations
Nearby Monitoring Stations
Florissant's air quality — share it
AQI Forecast
27
7pm
34
34
27
10pm
29
30
24
1am
25
26
26
4am
26
27
27
7am
25
25
25
10am
25
25
25
1pm
27
27
27
4pm
27
27
Air Quality Index Trend
47h · 6 stnFlorissant's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.
66.5%
Humidity
21.1 km/h
Wind NW
1014.0 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
6.55 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Florissant?
Temperature & Precipitation
PM2.5 Trend
47h · 6 stationsPM2.56.55 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
Station readings (4 stations within 25 km)
6.55
Median
7.07
Average
4.3
Low
9.6
High
PM2.5 µg/m³ · Model: 7.0 · Bias: +0.4
What is the 7-day forecast for Florissant?
06-09
32.3° 17.1°
6.38 mm
06-10
30.9° 22.6°
45.88 mm
06-11
29.5° 19.9°
06-12
32.2° 21.1°
0.75 mm
06-13
28.4° 23.9°
1.37 mm
06-14
33.4° 18.0°
12.19 mm
06-15
34.5° 25.7°
0.06 mm
Both models agree
Avg diff: 3.9°C
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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 2026-06-09T03:14 UTC.