Air Quality in Radnor, United States

Windy
12.1°C · 69.0% humidity
12.1°
Feels 12.1°
20
Good
Air quality is satisfactory. Enjoy outdoor activities.
62 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
42 10pm
42
42
20 1am
26
31
34 4am
36
38
39 7am
40
47
48 10am
48
48
69 1pm
69
49
49 4pm
49
49
42 7pm
42
49
Station readings
4
CAMS model adj +15
27
27
27
27
27
27
27
27
27
27
27
34
34
34
34
54
54
34
34
34
34
27
27
34
AD 728×90

Air Quality Index Trend

33h · 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.

69.0%
Humidity
49.2 km/h
Wind W
1002.6 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
20
4.78 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Radnor?

Temperature & Precipitation

PM2.5 Trend

33h · 1 station
PM2.54.78 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (62 stations within 25 km)
4.78
Median
4.78
Average
1.27
Low
7.54
High
PM2.5 µg/m³ · Model: 6.25 · Bias: +1.5

What is the 7-day forecast for Radnor?

06-09
32.2° 12.1°
0.19 mm
06-10
28.8° 20.0°
14.25 mm
06-11
24.2° 11.5°
06-12
22.9° 17.4°
10.56 mm
06-13
30.8° 19.3°
06-14
26.9° 17.6°
4.44 mm
06-15
24.3° 15.9°
Both models agree Avg diff: 6.1°C

Where are air quality stations near Radnor?

25
Norristown, Pennsylvania, USA
8.5 km PM2.5: 6.0 µg/m³
20
AMS ROX Station
10.1 km PM2.5: 4.7 µg/m³
23
6906 City Ave
10.9 km PM2.5: 5.6 µg/m³
21
C077 ( 945 Manatawna Ave)
11.1 km PM2.5: 5.1 µg/m³
18
C029 (5400 Lincoln Hwy)
11.8 km PM2.5: 4.4 µg/m³
18
CAMP - OEEC Installation 9
12.0 km PM2.5: 4.4 µg/m³
19
6237 Ridge Ave
12.2 km PM2.5: 4.6 µg/m³
20
723 Wolcott Dr (2)
12.8 km PM2.5: 4.9 µg/m³
19
5029 Ridge ave
13.0 km PM2.5: 4.5 µg/m³
20
8701 Germantown Ave
13.4 km PM2.5: 4.9 µg/m³

What cities are near Radnor?

20 King of Prussia 20 Havertown 20 Norristown 19 Overbrook 20 Drexel Hill 20 Haddington 20 East Mount Airy 20 Cobbs Creek 20 Phoenixville 20 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 2026-06-09T05:00 UTC.