Air Quality in Williamsburg, United States

Heavy Rain
18.1°C · 81.8% humidity
18.1°
Feels 18.1°
53
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
5 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
16 4pm
16
0
53 7pm
41
45
37 10pm
31
27
8 1am
6
4
3 4am
2
1
1 7am
1
1
0 10am
0
0
0 1pm
0
0
Station readings 8h ago
AQI 15
PM2.5 3.5 µg/m³ · 8h ago
CAMS model adj -38
54
54
34
34
34
54
54
54
54
34
34
34
34
27
27
27
27
27
27
27
27
27
27
27
AD 728×90

Air Quality Index Trend

5h · 1 stn

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

81.8%
Humidity
81.5 km/h
Wind N
1013.9 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
PM2.5
53
13.22 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

Temperature & Precipitation

PM2.5 Trend

5h · 1 station
PM2.513.22 µg/m³ ✓ WHO
Moderate
PM1020.55 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
13.22
Median
10.87
Average
7.34
Low
14.5
High
PM2.5 µg/m³ · Model: 10.85 · Bias: -2.4
07-21
27.7° 18.9°
17.19 mm
07-22
24.6° 17.5°
16.63 mm
07-23
30.5° 19.3°
15.81 mm
07-24
28.8° 17.8°
4.56 mm
07-25
33.9° 23.0°
5.13 mm
07-26
25.0° 21.5°
3.44 mm
07-27
26.8° 22.9°
0.81 mm
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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 2026-07-21T23:43 UTC.