Air Quality in Radnor, United States

Windy
31.8°C · 45.9% humidity
31.8°
Feels 34.9°
28
Good
Air quality is satisfactory. Enjoy outdoor activities.
67 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
24 10am
24
24
28 1pm
22
22
22 4pm
22
22
22 7pm
24
31
24 10pm
24
24
22 1am
22
22
22 4am
22
22
22 7am
24
24
Station readings
20
13
CAMS model adj -3
27
27
27
27
25
25
25
25
25
25
27
34
27
27
27
25
25
25
25
25
25
25
27
27
AD 728×90

Air Quality Index Trend

46h · 1 stn

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

45.9%
Humidity
43.8 km/h
Wind W
1015.9 hPa
Pressure
17.4
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
28
6.78 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Radnor?

Temperature & Precipitation

PM2.5 Trend

46h · 1 station
PM2.56.78 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX17.4
Extreme
AD 300×250
Station readings (67 stations within 25 km)
6.78
Median
6.79
Average
4.59
Low
7.81
High
PM2.5 µg/m³ · Model: 6.25 · Bias: -0.5

What is the 7-day forecast for Radnor?

09-05
31.8° 14.9°
0.31 mm
09-06
23.9° 19.8°
2.81 mm
09-07
23.9° 17.9°
09-08
22.2° 18.2°
0.56 mm
09-09
26.4° 12.9°
09-10
26.5° 16.7°
6.94 mm
09-11
32.6° 12.7°
Both models agree Avg diff: 5.0°C

Where are air quality stations near Radnor?

29
AMS ROX Station
10.2 km PM2.5: 6.9 µg/m³
29
6906 City Ave
10.9 km PM2.5: 6.9 µg/m³
28
C077 ( 945 Manatawna Ave)
11.1 km PM2.5: 6.7 µg/m³
28
C029 (5400 Lincoln Hwy)
11.8 km PM2.5: 6.8 µg/m³
25
6237 Ridge Ave
12.2 km PM2.5: 6.1 µg/m³
26
723 Wolcott Dr (2)
12.8 km PM2.5: 6.3 µg/m³
28
5029 Ridge ave
13.0 km PM2.5: 6.6 µg/m³
28
8701 Germantown Ave
13.4 km PM2.5: 6.7 µg/m³
30
1620 N 52nd St
13.7 km PM2.5: 7.2 µg/m³
31
51 N 57th St
14.2 km PM2.5: 7.4 µg/m³

What cities are near Radnor?

28 King of Prussia 29 Havertown 28 Norristown 29 Overbrook 29 Drexel Hill 30 Haddington 27 East Mount Airy 30 Cobbs Creek 28 Phoenixville 30 Kingsessing
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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 2026-09-05T17:02 UTC.