Station information
- Integrated Surface Dataset (ISD) station ID: 725340
- Weather Bureau Army Navy (WBAN): 14819
- Country: US
- State: IL
- Latitude: 41.786
- Longitude: -87.752
High Temperatures
On February 21 in CHICAGO MIDWAY INTL ARPT the average high temperature is 39.8 °F (4.3 °C). The lowest recored high temperature was 8.1 °F (-13.3 °C) in 1963 and the highest recored high temperature was 68.0 °F (20.0 °C) in 2024. The high temperature is usually* between 32.5 °F (0.3 °C) and 47.0 °F (8.3 °C). About a quarter of the time, the high temperature is less than 32.5 °F (0.3 °C), and another quarter of the time, the high temperature is greater than and 47.0 °F (8.3 °C). About 95% of the time, the high temperature has been between 18.8 °F (-7.3 °C) and 60.7 °F (16.0 °C).
Low Temperatures
On February 21 in CHICAGO MIDWAY INTL ARPT the average low temperature is 24.9 °F (-3.9 °C). The lowest recored low temperature was -6.0 °F (-21.1 °C) in 1963 and the lowest recored low temperature was 54.0 °F (12.2 °C) in 2017. The low temperature is usually* between 17.5 °F (-8.1 °C) and 32.3 °F (0.2 °C). About a quarter of the time, the low temperature is less than 17.5 °F (-8.1 °C), and another quarter of the time, the low temperature is greater than and 32.3 °F (0.2 °C). About 95% of the time, the low temperature has been between 3.3 °F (-15.9 °C) and 46.5 °F (8.1 °C).
Frost
On February 21 in CHICAGO MIDWAY INTL ARPT expect the temperatures to drop below freezing for a risk of frost about 74.0% 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:
- CHICAGO MIDWAY INTL ARPT — Integrated Surface Dataset (ISD) station ID: 725340 — Weather Bureau Army Navy (WBAN): 14819 — from year 1973 to 2025
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— Weather Bureau Army Navy (WBAN): 14819 — from year 1948 to 1972