Chicago Weather in August

Averages By Month

August Overview

The weather in August in Chicago is still beautifully warm and summery as temperature highs reach 81°F (27°C). The Lake Michigan water actually records its warmest temperature of 72°F (22°C) in August. The sun shines for 9 hours each day and it doesn’t rain too much with an average of 6 rainy days for the month of August. Also at night, temperatures hardly ever drop below 70°F (21°C) now.

Despite being less busy than July, August is still one of the most crowded times of the year in Chicago. You need to book early. But the effort does reward you with some of the best weather conditions allowing you to not just explore the city but also the great beaches around Lake Michigan. And in addition, there are also some fun events going on. Check out the Chicago Air and Water Show, the Lollapalooza or the Chicago Fringe Festival.

High and Low Temperature in August °F

Water Temperature in August °F

Current Weather Chicago

62°F few clouds
Local Time

Hourly 10 Days

Averages Chicago

  J F M A M J J A S O N D

High °F

32° 36° 45° 56° 66° 77° 82° 81° 74° 62° 50° 37°

Low °F

22° 26° 34° 43° 53° 63° 70° 70° 62° 50° 39° 27°


4 5 6 7 9 10 10 9 8 6 4 3

Rain days

5 7 5 7 7 9 6 6 5 7 4 7

Water °F

40° 37° 36° 37° 39° 46° 68° 72° 68° 61° 50° 43°

Chicago Weather by Month

Best Time to Visit Chicago

Weatherwise, any time between May and October is a good time to visit ChicagoSpring and fall aren’t too warm with temperatures ranging from anything between the 30s F (0s C) and the 70s F (20s C) making it ideal for exploring the city.

Summers do get really summery and warm with highs reaching the low 80s F (high 20s C). Between July and September is also the time you want to visit Chicago if you would like to take a swim in Lake Michigan too.

Winters are best to visit to save on accomodation but it does get chilly with temperatures around the freezing point, cold winds and snowfall of up to 11 inches (27 cm).

Things to know about Chicago

Plan a city trip to Chicago because it doesn’t always have to be NYC that’s front of mind for a city break! For anyone into art and architecture, Chicago, as the city of birth of the skyscraper, has so much to offer and can compare itself without doubt to NYC in this regard. Starting with Chicago’s location, it’s simply unique how much Lake Michigan resembles the sea and spreads out in front of the US’s third largest city. So you can enjoy some summer vacation feeling on the beach or the pier during your city trip.

Must sees:

From above:

Art and museums:


Food and Pizza:

Chicago Location

Other destinations by month

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