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Southborough (Massachusetts) (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

Cloudy
-1°C
Cloudy
Humidity
75.1%
Wind
2 m/s
Pressure
1032.8 hPa
Direction
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
-1° / 6°
Precip.
5.6mm
Max wind
6 m/s

Hourly Forecast

15.03
Now
Weather
-1°
15.03
13:00
Weather
-0°
15.03
14:00
Weather
15.03
15:00
Weather
15.03
16:00
Weather
15.03
17:00
Weather
15.03
18:00
Weather
15.03
19:00
Weather
15.03
20:00
Weather
15.03
21:00
Weather
15.03
22:00
Weather
15.03
23:00
Weather
16.03
00:00
Weather
16.03
01:00
Weather
16.03
02:00
Weather
-0°
16.03
03:00
Weather
-0°
16.03
04:00
Weather
-0°
16.03
05:00
Weather
16.03
06:00
Weather
16.03
07:00
Weather
16.03
08:00
Weather
16.03
09:00
Weather
0.4
16.03
10:00
Weather
1.4
16.03
11:00
Weather
3.8
6

Temperature

6°C
-1°C
12:00
-1°C
13:00
-0°C
14:00
0°C
15:00
0°C
16:00
2°C
17:00
4°C
18:00
4°C
19:00
5°C
20:00
6°C
21:00
6°C
22:00
5°C
23:00
2°C
00:00
1°C
01:00
0°C
02:00
-0°C
03:00
-0°C
04:00
-0°C
05:00
1°C
06:00
2°C
07:00
3°C
08:00
4°C
09:00
5°C
10:00
5°C
11:00
6°C
12:00 23:00 11:00

Precipitation

3.8mm
0mm
09:00
0.4mm
10:00
1.4mm
11:00
3.8mm
12:00 23:00 11:00

Wind

6m/s
0m/s
12:00
2 m/s
13:00
2.2 m/s
14:00
2 m/s
15:00
2.3 m/s
16:00
2.1 m/s
17:00
2.3 m/s
18:00
3.2 m/s
19:00
3.3 m/s
20:00
3.7 m/s
21:00
4.9 m/s
22:00
4.3 m/s
23:00
3.5 m/s
00:00
3.2 m/s
01:00
3.4 m/s
02:00
3.4 m/s
03:00
3.3 m/s
04:00
3.5 m/s
05:00
4.2 m/s
06:00
4.6 m/s
07:00
4.4 m/s
08:00
3.9 m/s
09:00
4.1 m/s
10:00
5 m/s
11:00
6 m/s
12:00 23:00 11:00

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
57.5 km
6
2%

Measurement time: 2026-03-15 10:34

Calculated from PM2.5/PM10

O3
57.5 km
83.04 µg/m3
51.9%

Measurement time: 2026-03-15 10:34

source: OpenWeatherMap

NO2
57.5 km
4.68 µg/m3
2.3%

Measurement time: 2026-03-15 10:34

source: OpenWeatherMap

PM10
57.5 km
2.62 µg/m3
1.9%

Measurement time: 2026-03-15 10:34

source: OpenWeatherMap

PM2.5
57.5 km
1.59 µg/m3
1.9%

Measurement time: 2026-03-15 10:34

source: OpenWeatherMap

CO
57.5 km
0.17261 mg/m3
1.2%

Measurement time: 2026-03-15 10:34

source: OpenWeatherMap

SO2
57.5 km
0.92 µg/m3
0.3%

Measurement time: 2026-03-15 10:34

source: OpenWeatherMap

About Air Quality in Southborough

Air quality in Southborough 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 Southborough

  • 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 Southborough?

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 Southborough

If you're planning outdoor activities in Southborough, 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.