What is the air quality in Janesville today?

The current Air Quality Index (AQI) in Janesville is 64 (Moderate). PM2.5 concentration is 18.3 µg/m³.

What is the temperature in Janesville right now?

The current temperature in Janesville is 9.3°C (feels like 4.6°C). Humidity is 67.0% and wind speed is 48.6 km/h.

Air Quality in Janesville, United States

Windy

9.3°C · 67.0% humidity

9.3°

Feels 4.6°

Moderate

Unusually sensitive people should consider reducing prolonged outdoor exertion.

Calibrated model

Nearby Monitoring Stations

AQI Forecast

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Air Quality Index Trend

40h · 1 stn

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Janesville's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration. Current PM2.5 concentration in Janesville is 1.2× the WHO 24-hour guideline of 15 µg/m³.

67.0%

Humidity

48.6 km/h

Wind E

1024.4 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

18.3 µg/m³

PM10

54.9 µg/m³

050100150200300500

What is the weather forecast for Janesville?

Temperature & Precipitation

PM2.5 Trend

40h · 1 station

PM2.518.3 µg/m³ ×1.2 WHO

Moderate

PM1054.9 µg/m³

Moderate

UV INDEX0.0

Low

What is the 7-day forecast for Janesville?

10-21

22.1° 9.3°

3.38 mm

10-22

13.6° 6.1°

10-23

10.8° 6.6°

1.63 mm

10-24

21.6° 6.7°

10-25

12.2° -0.2°

0.38 mm

10-26

16.5° 1.4°

4.12 mm

10-27

9.0° -2.8°

0.13 mm

Both models agree Avg diff: 5.8°C

What cities are near Janesville?

59 Beloit 55 Machesney Park 55 Loves Park 55 Rockford 23 Fitchburg 55 Belvidere 25 Sun Prairie 22 Middleton 33 Oconomowoc 13 Freeport

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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-10-21T02:52 UTC.