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Illinois United States of America
Temperatures in August
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Temperature in Illinois in August

Illinois is a region in the United States of America. August in has maximum daytime temperatures ranging from high in Roscoe with 24°C to very high temperatures in Metropolis with 31°C. Nighttime temperatures generally drop to 20°C in Metropolis and 12°C in Roscoe. The month of August is in the summer season.

What is the temperature of the different cities in Illinois in August?

Discover the typical August temperatures for the most popular locations of Illinois on the map below. Detailed insights are just a click away.

Weather conditions Weather
Temperatures
Precipitation
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Legend very warm warm pleasant moderate cold very cold
Very warm means maximum temperatures above 30°C. Warm: 22°C to 30°C. Pleasant: 18°C to 22°C Moderate: 12°C to 18°C. Cold: 2°C to 12°C. Very cold: lower than 2°C

  • What is the warmest city in August in Illinois?
    • Data insights from our comprehensive database indicate that Metropolis is the city with the highest warmth. Daytime peaks average near 31°C, while the nights are characterized by a low temperature close to 20°C."

  • What is the coldest city in August in Illinois?
    • Our database indicates that in August, Roscoe is the city with the coolest temperatures in Illinois. You can expect daytime highs of 24°C and nighttime lows close to 12°C.

  • How much sun does Illinois get in August?
    • Chicago enjoys approximately 280 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. Interested in the weather conditions in a specific month? Select the month below.

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