Temperature in Illinois in June

Daytime highs, nighttime lows and the warmest cities in Illinois, the United States of America this June.

Illinois, the United States of America, a region in the United States of America, experiences maximum daytime temperatures in June ranging from 23°C (73°F) in Roscoe to 31°C (88°F) in Metropolis. Nighttime temperatures generally drop to 19°C (66°F) in Metropolis and 11°C (52°F) in Roscoe. June falls during the summer season.

What is the temperature of the different cities in Illinois, the United States of America in June?

To get a sense of June's typical temperatures in the key spots of Illinois, explore the map below. Click on a point for an in-depth look.

Select a Month

Check the conditions for any month of the year.

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For a detailed overview over the year and the best time to visit Illinois, check out our Illinois's climate page.

See also: Illinois weather by month.

Best Places to Visit in Illinois in June

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Illinois.

Conditions Temperatures Precipitation
Avg daytime high -5°C (23°F) cold → 32°C (90°F) hot

Marker color shows the average daytime high temperature in June: blue is cold, red is hot.

See all June weather averages, cities and regions in Illinois

Illinois temperatures in June: frequently asked questions

How hot does it get in Illinois, the United States of America in June?

Average daytime highs in Illinois, the United States of America during June reach about 26°C (79°F) in Chicago.

How cold does it get at night in Illinois, the United States of America in June?

After dark, Chicago cools to about 16°C (61°F) on an average June night.

What is the warmest city in June in Illinois, the United States of America?

According to our recent database analysis, Metropolis is the warmest city. It experiences an average maximum daytime temperature of approximately 31°C (88°F) and rarely drops below 19°C (66°F) during the night.

What is the coldest city in June in Illinois, the United States of America?

The coldest city in June in Illinois, the United States of America is Roscoe when we check our database. The maximum daytime temperatures are around 23°C (73°F) and minimum nighttime temperatures fall around 11°C (52°F).

How much sun does Illinois, the United States of America get in June?

Chicago enjoys approximately 311 hours of sunshine, offering a mostly sunny climate that adds a pleasant and vibrant feel to the month.

Interested in more climate information?

We have much more information about the climate in Illinois.

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