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Silver Spring (Maryland) (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

Partly cloudy
8°C
Partly cloudy
Humidity
51.3%
Wind
5 m/s
Pressure
1026.7 hPa
Direction
102°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
8° / 17°
Precip.
4mm
Max wind
7.3 m/s

Hourly Forecast

15.03
Now
Weather
15.03
15:00
Weather
10°
5
15.03
16:00
Weather
12°
6
15.03
17:00
Weather
13°
6
15.03
18:00
Weather
13°
6
15.03
19:00
Weather
14°
6
15.03
20:00
Weather
14°
6
15.03
21:00
Weather
14°
6
15.03
22:00
Weather
13°
0.5
6
15.03
23:00
Weather
13°
6
16.03
00:00
Weather
13°
6
16.03
01:00
Weather
13°
6
16.03
02:00
Weather
13°
7
16.03
03:00
Weather
13°
7
16.03
04:00
Weather
13°
6
16.03
05:00
Weather
14°
0.3
7
16.03
06:00
Weather
13°
7
16.03
07:00
Weather
13°
6
16.03
08:00
Weather
14°
16.03
09:00
Weather
15°
5
16.03
10:00
Weather
15°
6
16.03
11:00
Weather
16°
7
16.03
12:00
Weather
17°
0.9
7
16.03
13:00
Weather
17°
2.3
6

Temperature

17°C
8°C
14:00
8°C
15:00
10°C
16:00
12°C
17:00
13°C
18:00
13°C
19:00
14°C
20:00
14°C
21:00
14°C
22:00
13°C
23:00
13°C
00:00
13°C
01:00
13°C
02:00
13°C
03:00
13°C
04:00
13°C
05:00
14°C
06:00
13°C
07:00
13°C
08:00
14°C
09:00
15°C
10:00
15°C
11:00
16°C
12:00
17°C
13:00
17°C
14:00 01:00 13:00

Precipitation

2.3mm
0mm
22:00
0.5mm
05:00
0.3mm
12:00
0.9mm
13:00
2.3mm
14:00 01:00 13:00

Wind

7.3m/s
0m/s
14:00
4.7 m/s
15:00
5.4 m/s
16:00
5.7 m/s
17:00
5.8 m/s
18:00
5.9 m/s
19:00
6.3 m/s
20:00
6.2 m/s
21:00
5.6 m/s
22:00
5.7 m/s
23:00
5.7 m/s
00:00
6 m/s
01:00
6.4 m/s
02:00
6.6 m/s
03:00
6.6 m/s
04:00
6.1 m/s
05:00
6.6 m/s
06:00
7 m/s
07:00
5.8 m/s
08:00
5 m/s
09:00
5.4 m/s
10:00
5.7 m/s
11:00
7.1 m/s
12:00
7.3 m/s
13:00
6.1 m/s
14:00 01:00 13:00

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
89.3 km
69
23%

Measurement time: 2026-03-15 13:00

Calculated from PM2.5/PM10

O3
50.3 km
107.41 µg/m3
67.1%

Measurement time: 2026-03-15 13:32

source: OpenWeatherMap

PM2.5
89.3 km
21 µg/m3
25%

Measurement time: 2026-03-15 13:00

source: Aqicn

PM10
50.3 km
3.82 µg/m3
2.7%

Measurement time: 2026-03-15 13:32

source: OpenWeatherMap

NO2
50.3 km
3.43 µg/m3
1.7%

Measurement time: 2026-03-15 13:32

source: OpenWeatherMap

CO
50.3 km
0.1583 mg/m3
1.1%

Measurement time: 2026-03-15 13:32

source: OpenWeatherMap

SO2
50.3 km
1.29 µg/m3
0.4%

Measurement time: 2026-03-15 13:32

source: OpenWeatherMap

About Air Quality in Silver Spring

Air quality in Silver Spring 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 Silver Spring

  • 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 Silver Spring?

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 Silver Spring

If you're planning outdoor activities in Silver Spring, 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.