Climate in Vandalia (Illinois), United States of America

The graphs below show the monthly weather averages over the year.

Average day and night temperature

The mean minimum and maximum temperatures over the year.

Average monthly minimum and maximum temperature in Vandalia, the United States of America

Monthly precipitation

The mean monthly precipitation over the year, including rain, snow, hail etc.

Average monthly rainfall, snow, precipitation in Vandalia, the United States of America

Monthly rainy days

The average number of days each month with rain, snow, hail etc.

Weather Forecasts for Vandalia (IL)

Tue Apr 30

25°C | 11°C

7 km/h

0.2 mm

partly cloudy and small chance of slight rain

hourly forecast

Wed May 01

26°C | 16°C

11 km/h

partly cloudy and no rain

hourly forecast

Thu May 02

28°C | 17°C

22 km/h

broken clouds and no rain

hourly forecast

5-Day Forecast 10-Day Forecast

The best time of year to visit Vandalia in the United States of America

Other facts from our historical weather data:

Which is the warmest month in Vandalia?
July has an average maximum temperature of 31°C and is the warmest month of the year.

Which is the coldest month in Vandalia?
The coldest month is January with an average maximum temperature of 3°C.

Which is the wettest month in Vandalia?
June tops the wettest month list with 163 mm of rainfall.

Which is the driest month in Vandalia?
January is the driest month with 59 mm of precipitation.

No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.

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