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Saint Matthews (Kentucky) (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
-5°C
Cloudy
Humidity
83.7%
Wind
3 m/s
Pressure
1028.2 hPa
Direction
13°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
-9° / -2°
Precip.
0mm
Max wind
4.3 m/s

Hourly Forecast

04.02
Now
Weather
-5°
04.02
16:00
Weather
-4°
04.02
17:00
Weather
-3°
04.02
18:00
Weather
-2°
04.02
19:00
Weather
-2°
04.02
20:00
Weather
-2°
04.02
21:00
Weather
-2°
04.02
22:00
Weather
-3°
04.02
23:00
Weather
-4°
05.02
00:00
Weather
-5°
05.02
01:00
Weather
-5°
05.02
02:00
Weather
-5°
05.02
03:00
Weather
-6°
05.02
04:00
Weather
-6°
05.02
05:00
Weather
-7°
05.02
06:00
Weather
-7°
05.02
07:00
Weather
-7°
05.02
08:00
Weather
-8°
05.02
09:00
Weather
-8°
05.02
10:00
Weather
-8°
05.02
11:00
Weather
-9°
05.02
12:00
Weather
-9°
05.02
13:00
Weather
-9°
05.02
14:00
Weather
-9°

Temperature

-2°C
-9°C
15:00
-5°C
16:00
-4°C
17:00
-3°C
18:00
-2°C
19:00
-2°C
20:00
-2°C
21:00
-2°C
22:00
-3°C
23:00
-4°C
00:00
-5°C
01:00
-5°C
02:00
-5°C
03:00
-6°C
04:00
-6°C
05:00
-7°C
06:00
-7°C
07:00
-7°C
08:00
-8°C
09:00
-8°C
10:00
-8°C
11:00
-9°C
12:00
-9°C
13:00
-9°C
14:00
-9°C
15:00 02:00 14:00

Precipitation

0mm
0mm
15:00 02:00 14:00

Wind

4.3m/s
0m/s
15:00
3.3 m/s
16:00
4 m/s
17:00
4.1 m/s
18:00
4.3 m/s
19:00
4.2 m/s
20:00
4.2 m/s
21:00
4 m/s
22:00
4 m/s
23:00
3.6 m/s
00:00
3.6 m/s
01:00
3.4 m/s
02:00
3.3 m/s
03:00
3.5 m/s
04:00
3.2 m/s
05:00
2.9 m/s
06:00
2.4 m/s
07:00
2.1 m/s
08:00
2.4 m/s
09:00
2.1 m/s
10:00
2.3 m/s
11:00
2.7 m/s
12:00
1.4 m/s
13:00
1.6 m/s
14:00
1.3 m/s
15:00 02:00 14:00

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
10.6 km
155
51.7%

Measurement time: 2026-02-04 14:00

Calculated from PM2.5/PM10

PM2.5
10.6 km
65 µg/m3
77.4%

Measurement time: 2026-02-04 14:00

source: Aqicn

O3
27.7 km
76.19 µg/m3
47.6%

Measurement time: 2026-02-04 14:48

source: OpenWeatherMap

PM10
10.6 km
21 µg/m3
15%

Measurement time: 2026-02-04 14:00

source: Aqicn

NO2
27.7 km
6.46 µg/m3
3.2%

Measurement time: 2026-02-04 14:48

source: OpenWeatherMap

SO2
27.7 km
5.73 µg/m3
1.6%

Measurement time: 2026-02-04 14:48

source: OpenWeatherMap

CO
27.7 km
0.21523 mg/m3
1.5%

Measurement time: 2026-02-04 14:48

source: OpenWeatherMap

Info


Region: Kentucky
Latitude: 38.25285
Longitude: -85.65579

About Air Quality in Saint Matthews

Air quality in Saint Matthews 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 Saint Matthews

  • 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 Saint Matthews?

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 Saint Matthews

If you're planning outdoor activities in Saint Matthews, 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.