Station information
- Integrated Surface Dataset (ISD) station ID: 725337
- Country: US
- State: IN
- Latitude: 41.617
- Longitude: -87.4
High Temperatures
On June 18 in GARY CHICAGO the average high temperature is 82.4 °F (28.0 °C). The lowest recored high temperature was 68.0 °F (20.0 °C) in 1999 and the highest recored high temperature was 95.0 °F (35.0 °C) in 2018. The high temperature is usually* between 76.7 °F (24.9 °C) and 88.0 °F (31.1 °C). About a quarter of the time, the high temperature is less than 76.7 °F (24.9 °C), and another quarter of the time, the high temperature is greater than and 88.0 °F (31.1 °C). About 95% of the time, the high temperature has been between 66.0 °F (18.9 °C) and 98.7 °F (37.1 °C).
Low Temperatures
On June 18 in GARY CHICAGO the average low temperature is 63.2 °F (17.3 °C). The lowest recored low temperature was 42.8 °F (6.0 °C) in 1999 and the lowest recored low temperature was 77.0 °F (25.0 °C) in 2024. The low temperature is usually* between 58.1 °F (14.5 °C) and 68.3 °F (20.2 °C). About a quarter of the time, the low temperature is less than 58.1 °F (14.5 °C), and another quarter of the time, the low temperature is greater than and 68.3 °F (20.2 °C). About 95% of the time, the low temperature has been between 48.3 °F (9.1 °C) and 78.1 °F (25.6 °C).
Frost
On June 18 in GARY CHICAGO expect the temperatures to drop below freezing for a risk of frost about 0.0% of the time.
Data Source(s)
The data used to compute the average high/low temperatures for this location were taken from the following stations:
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— Integrated Surface Dataset (ISD) station ID: 725337 — Weather Bureau Army Navy (WBAN): 04807 — from year 2006 to 2025 - GARY CHICAGO — Integrated Surface Dataset (ISD) station ID: 725337 — from year 1982 to 2005