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Willow Springs (Illinois) (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

Starker Regen
12°C
Starker Regen
Humidity
74.2%
Wind
4 m/s
Pressure
1020.4 hPa
Direction
242°
Sunrise
04:00
Sunset
16:00
24h Forecast:
Temp.
8° / 21°
Precip.
21mm
Max wind
5.4 m/s

Hourly Forecast

09.04
Now
Weather
12°
4.7
09.04
14:00
Weather
11°
1.9
5
09.04
15:00
Weather
13°
1.9
09.04
16:00
Weather
15°
0.1
09.04
17:00
Weather
17°
09.04
18:00
Weather
19°
09.04
19:00
Weather
21°
09.04
20:00
Weather
21°
09.04
21:00
Weather
20°
09.04
22:00
Weather
20°
09.04
23:00
Weather
18°
0.2
10.04
00:00
Weather
17°
0.4
10.04
01:00
Weather
15°
10.04
02:00
Weather
13°
0.1
10.04
03:00
Weather
13°
1.2
10.04
04:00
Weather
12°
2.7
10.04
05:00
Weather
11°
1.6
10.04
06:00
Weather
10°
1.6
10.04
07:00
Weather
2.1
10.04
08:00
Weather
0.7
10.04
09:00
Weather
0.2
10.04
10:00
Weather
0.9
10.04
11:00
Weather
0.7
10.04
12:00
Weather

Temperature

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

Precipitation

4.7mm
0mm
13:00
4.7mm
14:00
1.9mm
15:00
1.9mm
16:00
0.1mm
23:00
0.2mm
00:00
0.4mm
02:00
0.1mm
03:00
1.2mm
04:00
2.7mm
05:00
1.6mm
06:00
1.6mm
07:00
2.1mm
08:00
0.7mm
09:00
0.2mm
10:00
0.9mm
11:00
0.7mm
13:00 00:00 12:00

Wind

5.4m/s
0m/s
13:00
4.4 m/s
14:00
5.4 m/s
15:00
4.3 m/s
16:00
3.7 m/s
17:00
3.9 m/s
18:00
4 m/s
19:00
4.1 m/s
20:00
5 m/s
21:00
4.7 m/s
22:00
3.7 m/s
23:00
2.7 m/s
00:00
2.5 m/s
01:00
3.3 m/s
02:00
3.3 m/s
03:00
2.6 m/s
04:00
3.9 m/s
05:00
3.8 m/s
06:00
3.8 m/s
07:00
3.7 m/s
08:00
3.5 m/s
09:00
3.9 m/s
10:00
4.5 m/s
11:00
4.2 m/s
12:00
3.4 m/s
13:00 00:00 12:00

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
22.3 km
114
38%

Measurement time: 2026-04-09 14:00

Calculated from PM2.5/PM10

PM2.5
22.3 km
41 µg/m3
48.8%

Measurement time: 2026-04-09 14:00

source: Aqicn

O3
62 km
26.4 µg/m3
16.5%

Measurement time: 2026-04-09 14:00

source: Aqicn

About Air Quality in Willow Springs

Air quality in Willow Springs 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 Willow Springs

  • 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 Willow Springs?

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 Willow Springs

If you're planning outdoor activities in Willow Springs, 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.