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New London (Connecticut) (US)

Air Quality Trend (last 7 days)

Good (0-50)
Moderate (51-100)
Unhealthy for Sensitive Groups (101-150)
Unhealthy (151-200)
Very Unhealthy (201-300)
Hazardous (300+)

Weather - 48h MET Norway

Sleet
2°C
Sleet
Humidity
95.4%
Wind
9 m/s
Pressure
1002.5 hPa
Direction
84°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
-2° / 4°
Precip.
1.4mm
Max wind
8.8 m/s

Hourly Forecast

20.02
Now
Weather
0.3
9
21.02
00:00
Weather
0.8
8
21.02
01:00
Weather
0.2
6
21.02
02:00
Weather
6
21.02
03:00
Weather
6
21.02
04:00
Weather
21.02
05:00
Weather
21.02
06:00
Weather
0.1
21.02
07:00
Weather
21.02
08:00
Weather
21.02
09:00
Weather
-1°
21.02
10:00
Weather
-2°
21.02
11:00
Weather
-1°
21.02
12:00
Weather
-1°
21.02
13:00
Weather
21.02
14:00
Weather
21.02
15:00
Weather
21.02
16:00
Weather
21.02
17:00
Weather
21.02
18:00
Weather
21.02
19:00
Weather
5
21.02
20:00
Weather
6
21.02
21:00
Weather
5
21.02
22:00
Weather
5

Temperature

4°C
-2°C
23:00
2°C
00:00
2°C
01:00
2°C
02:00
1°C
03:00
1°C
04:00
1°C
05:00
1°C
06:00
1°C
07:00
1°C
08:00
1°C
09:00
-1°C
10:00
-2°C
11:00
-1°C
12:00
-1°C
13:00
0°C
14:00
1°C
15:00
2°C
16:00
3°C
17:00
3°C
18:00
4°C
19:00
4°C
20:00
3°C
21:00
2°C
22:00
1°C
23:00 10:00 22:00

Precipitation

0.8mm
0mm
23:00
0.3mm
00:00
0.8mm
01:00
0.2mm
06:00
0.1mm
23:00 10:00 22:00

Wind

8.8m/s
0m/s
23:00
8.8 m/s
00:00
8.3 m/s
01:00
6 m/s
02:00
6 m/s
03:00
5.5 m/s
04:00
4.2 m/s
05:00
2.3 m/s
06:00
3.7 m/s
07:00
4.4 m/s
08:00
3.9 m/s
09:00
2.9 m/s
10:00
2.4 m/s
11:00
2.9 m/s
12:00
3.8 m/s
13:00
2.9 m/s
14:00
1.4 m/s
15:00
1.4 m/s
16:00
2.2 m/s
17:00
3.9 m/s
18:00
4.2 m/s
19:00
5.4 m/s
20:00
5.7 m/s
21:00
5.3 m/s
22:00
5.2 m/s
23:00 10:00 22:00

Radiation

No sensor within 100 km.

We display the worst measurements from all stations in the area. This approach provides a more cautious assessment of air quality, accounting for local pollution sources.

AQI
66.6 km
78
26%

Measurement time: 2026-02-20 22:00

Calculated from PM2.5/PM10

O3
47.2 km
82.33 µg/m3
51.5%

Measurement time: 2026-02-20 22:40

source: OpenWeatherMap

PM2.5
66.6 km
25 µg/m3
29.8%

Measurement time: 2026-02-20 22:00

source: Aqicn

PM10
66.6 km
8 µg/m3
5.7%

Measurement time: 2026-02-20 22:00

source: Aqicn

NO2
66.6 km
4.6 µg/m3
2.3%

Measurement time: 2026-02-20 22:00

source: Aqicn

CO
47.2 km
0.16171 mg/m3
1.2%

Measurement time: 2026-02-20 22:40

source: OpenWeatherMap

SO2
47.2 km
0.44 µg/m3
0.1%

Measurement time: 2026-02-20 22:40

source: OpenWeatherMap

Info


Latitude: 41.35565
Longitude: -72.09952


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About Air Quality in New London

Air quality in New London is monitored in real-time by sensors and measurement stations. On this page you'll find current data on major air pollutants including particulate matter PM2.5 and PM10, nitrogen dioxide (NO2), ozone (O3), and radiation levels.

Common Pollutants in New London

  • PM2.5 - fine particulate matter up to 2.5 micrometers, particularly harmful to health
  • PM10 - particulate matter up to 10 micrometers from traffic and industry
  • NO2 - nitrogen dioxide mainly emitted by vehicles
  • O3 - tropospheric ozone formed in photochemical reactions

When is Air Quality Best in New London?

Generally, the best air quality occurs:

  • Early morning (5:00-7:00 AM) before rush hour traffic
  • After rainfall which cleanses the atmosphere
  • During strong winds that disperse pollutants
  • In summer months when heating systems are less used

Tips for Runners in New London

If you're planning outdoor activities in New London, always check the current AQI value. When AQI exceeds 100, consider moving your workout indoors or shortening the distance. People with respiratory issues, children, and seniors should be especially cautious during elevated pollution levels. Choose routes away from busy streets and industrial areas.