Illinois weather in October
Thinking about venturing to Illinois this October and curious about the weather conditions to expect? This page holds all the key information you seek, responding to your question:
What is the weather like in Illinois in October?
Illinois is a region in the United States of America. October in Illinois generally has temperatures that range from moderate to pleasant, with precipitation levels ranging from moderate to high.
During the day the temperature is moderate in Roscoe at 14°C and pleasant in Metropolis at 21°C. As night falls, temperatures generally drop to 8°C in Metropolis and 3°C in Roscoe.
In October, precipitation varies across different areas. From moderate rainfall in Rochelle with an average of 67 mm to high rainfall in Roscoe with 143 mm. The city Chicago usually sees around 195 hours of sunlight, indicating many sunny days.
To learn more about the conditions in specific areas of Illinois in October, check out the map below. For more details on the yearly weather, visit our Illinois climate page.
Where to go in Illinois in October
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Popular destinations in Illinois
What is the weather like in October for the 5 most popular destinations in Illinois?
Average weather in Chicago
In October Chicago generally has moderate temperatures with maximum daytime temperatures around 17°C, minimum nighttime temperatures around 7°C and moderate monthly rainfall. So on average the conditions are tolerable that month.
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Average weather in Schaumburg
In October Schaumburg generally has moderate temperatures with maximum daytime temperatures around 17°C, minimum nighttime temperatures around 5°C and moderate monthly rainfall. So on average the conditions are tolerable that month.
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Average weather in Rosemont
In October Rosemont generally has moderate temperatures with maximum daytime temperatures around 17°C, minimum nighttime temperatures around 7°C and moderate monthly rainfall. So on average the conditions are tolerable that month.
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Average weather in Joliet
In October Joliet generally has moderate temperatures with maximum daytime temperatures around 17°C, minimum nighttime temperatures around 6°C and moderate monthly rainfall. So on average the conditions are tolerable that month.
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Average weather in Naperville
In October Naperville generally has moderate temperatures with maximum daytime temperatures around 17°C, minimum nighttime temperatures around 5°C and moderate monthly rainfall. So on average the conditions are tolerable that month.
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Is your destination not in the list? Have a look at other destinations in Illinois, in the United States of America.
Is October the best time to visit Illinois?
Given the typically tolerable weather conditions in Chicago, October might be a good time to visit Illinois. However, the weather conditions may vary depending on your destination.
Generally speaking, September provides perfect weather in Chicago. The weather in January, February, March, November and December, on the other hand, tends to be poor.
Interested in more climate information?
We have much more information about the climate in Illinois.
Interested in the weather conditions in a specific month? Select the month below.
Weather and climate has detailed information for every country in the world. Are you going to the United States of America? Get detailed historical weather averages for many cities in the United States of America.
Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.