Air Quality in Johnston, United States
Cloudy
15.0°C · 78.5% humidity
15.0°
Feels 15.0°
8
Good
Air quality is satisfactory. Enjoy outdoor activities.
2 stations
Nearby Monitoring Stations
AQI Forecast
25
7pm
25
27
8
10pm
13
17
27
1am
29
30
31
4am
52
33
33
7am
26
25
25
10am
25
25
25
1pm
25
25
25
4pm
25
25
Air Quality Index Trend
46h · 4 stnJohnston's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.
78.5%
Humidity
29.3 km/h
Wind SW
999.6 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5
1.96 µg/m³
PM10▲
13.7 µg/m³
050100150200300500
What is the weather forecast for Johnston?
Temperature & Precipitation
PM2.5 Trend
46h · 4 stationsPM2.51.96 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
Station readings (2 stations within 25 km)
1.96
Median
1.9
Average
0.7
Low
3.1
High
PM2.5 µg/m³ · Model: 6.15 · Bias: +4.2
What is the 7-day forecast for Johnston?
06-09
34.2° 12.5°
0.31 mm
06-10
22.1° 13.8°
1.37 mm
06-11
25.5° 8.4°
06-12
20.9° 14.8°
0.75 mm
06-13
29.0° 14.8°
0.13 mm
06-14
23.4° 8.5°
8.87 mm
06-15
26.0° 12.3°
0.06 mm
Both models agree
Avg diff: 6.5°C
Where are air quality stations near Johnston?
11
Near Road, Rhode Island, USA
34
Near Road, Rhode Island, USA
16
Near Road, Rhode Island, USA
34
CCRI Providence, Rhode Island, USA
15
CCRI Providence, Rhode Island, USA
17
SUEZ Waterpump Station
29
E Providence, Rhode Island, USA
17
W Greenwich, Rhode Island, USA
53
W Greenwich, Rhode Island, USA
What cities are near Johnston?
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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 2026-06-09T02:11 UTC.