Average humidity in Prospect Heights (IL)

The mean monthly relative humidity over the year in Prospect Heights (Illinois), the United States of America.

* Data from: Chicago, the United States of America (12 KM, 7 Miles).

On average, December is the most humid month, at 76.0%.
On average, May is the least humid month, at 64.0%.
The average annual percentage of humidity is 70%.

Forecast for Prospect Heights (IL)

Tue May 07

22°C | 14°C

18 km/h

18 mm

partly cloudy and thunder

hourly forecast

Wed May 08

24°C | 12°C

14 km/h

partly cloudy and no rain

hourly forecast

Thu May 09

13°C | 9°C

18 km/h

6.3 mm

broken clouds and rain

hourly forecast

5-Day Forecast 10-Day Forecast

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