What is the air quality in Johnston today?

The current Air Quality Index (AQI) in Johnston is 29 (Good). PM2.5 concentration is 7.01 µg/m³.

What is the temperature in Johnston right now?

The current temperature in Johnston is 16.3°C (feels like 16.3°C). Humidity is 95.0% and wind speed is 103.6 km/h.

Is it safe to go outside in Johnston?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 2.2 (Moderate).

Air Quality in Johnston, United States

Rain

16.3°C · 95.0% humidity

16.3°

Feels 16.3°

Good

Air quality is satisfactory. Enjoy outdoor activities.

3 stations

Nearby Monitoring Stations

AQI Forecast

34 4pm

29 7pm

23 10pm

24 1am

24 4am

24 7am

24 10am

25 1pm

Air Quality Index Trend

43h · 4 stn

View full history →

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

95.0%

Humidity

103.6 km/h

Wind NNE

1010.6 hPa

Pressure

2.2

UV Moderate

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

7.01 µg/m³

PM10

27.45 µg/m³

050100150200300500

What is the weather forecast for Johnston?

Temperature & Precipitation

PM2.5 Trend

43h · 4 stations

PM2.57.01 µg/m³ ✓ WHO

Good

PM1027.45 µg/m³

Good

UV INDEX2.2

Moderate

Station readings (3 stations within 25 km)

7.01

Median

6.93

Average

5.0

Low

9.1

High

PM2.5 µg/m³ · Model: 13.7 · Bias: +6.7

What is the 7-day forecast for Johnston?

07-21

24.7° 18.4°

14.0 mm

07-22

21.1° 14.7°

11.44 mm

07-23

28.4° 16.0°

1.69 mm

07-24

27.0° 15.5°

3.06 mm

07-25

33.5° 20.0°

4.88 mm

07-26

23.5° 17.0°

1.94 mm

07-27

28.3° 14.2°

15.69 mm

Both models agree Avg diff: 3.0°C

Where are air quality stations near Johnston?

Near Road, Rhode Island, USA

7.4 km PM2.5: 11.5 µg/m³

Near Road, Rhode Island, USA

7.4 km PM2.5: 11.8 µg/m³

Near Road, Rhode Island, USA

7.4 km PM2.5: 7.2 µg/m³

CCRI Providence, Rhode Island, USA

7.9 km PM2.5: 7.2 µg/m³

CCRI Providence, Rhode Island, USA

7.9 km PM2.5: 6.7 µg/m³

SUEZ Waterpump Station

10.9 km PM2.5: 4.0 µg/m³

E Providence, Rhode Island, USA

12.2 km PM2.5: 18.8 µg/m³

W Greenwich, Rhode Island, USA

29.0 km PM2.5: 12.1 µg/m³

W Greenwich, Rhode Island, USA

29.0 km PM2.5: 8.6 µg/m³

What cities are near Johnston?

31 North Providence 27 Cranston 35 Providence 28 East Providence 30 Smithfield 31 Pawtucket 31 Central Falls 30 West Warwick 30 Warwick 30 Cumberland

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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 2026-07-21T23:13 UTC.