June weather forecast and climate
Chicago, IL

An aerial view of the city of Chicago in Illinois, on the shores of Lake Michigan, with a superb view of the sandy beach of Oak Street
An aerial view of the city of Chicago in Illinois, on the shores of Lake Michigan, with a superb view of the sandy beach of Oak Street
June is the sunniest month in Chicago with days spanning the average range of 58°F (14.4°C) to 80°F (26.7°C). Many days register temperatures above 85°F (29.4°C), a few cross 90°F (32.2°C), while 100°F (37.8°C) is rare except during a heatwave.
Nights tend to be warm as the skies are mostly cloudy. The sunlight easily registers over 15 hours in June as the month records the longest days of the year.
Lakeshores and beaches buzz with visitors to escape the hot and humid weather. Lake Michigan regions offer cooler weather with naturally higher accommodation costs during the packed summer vacations. June is moderately rainy, with a fair chance of thunderstorms.

What is the temperature in June in Chicago?

In Chicago, in June, the average high-temperature is 79.9°F (26.6°C), and the average low-temperature is 62.1°F (16.7°C).

How many days does it rain in June in Chicago?

In Chicago, during June, the rain falls for 10.3 days and regularly aggregates up to 4.1" (103.1mm) of precipitation.

How cold is the water in June in Chicago?

In June, the average sea temperature is 57.6°F (14.2°C). Swimming in 57.6°F (14.2°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.
Average temperature in June - Chicago, IL
  • Average high temperature in June: 79.9°F

The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (31.5°F).

  • Average low temperature in June: 62.1°F

The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (18.2°F).

Average humidity in June - Chicago, IL
  • Average humidity in June: 65.6%

The month with the highest relative humidity is December (75.5%).
The month with the lowest relative humidity is May (64.1%).

Average rainfall in June - Chicago, IL
  • Average rainfall in June: 4.1"

Wettest months (with the highest rainfall) are May and June (4.1").
The driest month (with the lowest rainfall) is February (1.9").

Average rainfall days in June - Chicago, IL
  • Average rainfall days in June: 10.3 days

The month with the highest number of rainy days is May (11.4 days).
The month with the lowest number of rainy days is September (8.2 days).

Average snowfall in June - Chicago, IL
  • Average snowfall in June: 0"

The month with the highest snowfall is January (11.5").
Months with the lowest snowfall are May, June, July, August and September (0").

Average snowfall days in June - Chicago, IL
  • Average snowfall days in June: 0 days

The month with the highest number of snowfall days is January (8.1 days).
Months with the lowest number of snowfall days are May, June, July, August and September (0 days).

Average sea temperature in June - Chicago, IL
  • Average sea temperature in June: 57.5°F

The best month for swimming (with the highest average sea temperature) is August (73.9°F).
The coldest month (with the lowest average sea temperature) is February (36.9°F).

Average daylight in June / Average sunshine in June - Chicago, IL
  • Average daylight in June: 15.2h

The month with the longest days is June (Average daylight: 15.2h).
The month with shortest days is December (Average daylight: 9.2h).

  • Average sunshine in June: 10.4h

The month with most sunshine is June (Average sunshine: 10.4h).
The month with least sunshine is December (Average sunshine: 3.4h).

Average UV index in June - Chicago, IL
  • Average UV index in June: 9

Months with the highest UV index are June and July (UV index 9).
Months with the lowest UV index are January and December (UV index 1).

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