Station information
- Integrated Surface Dataset (ISD) station ID: 997338
- Country: US
- State: IL
- Latitude: 42.0
- Longitude: -87.5
High Temperatures
On April 28 in CHICAGO the average high temperature is 56.7 °F (13.7 °C). The lowest recored high temperature was 41.7 °F (5.4 °C) in 2019 and the highest recored high temperature was 80.6 °F (27.0 °C) in 2025. The high temperature is usually* between 48.1 °F (9.0 °C) and 65.2 °F (18.5 °C). About a quarter of the time, the high temperature is less than 48.1 °F (9.0 °C), and another quarter of the time, the high temperature is greater than and 65.2 °F (18.5 °C). About 95% of the time, the high temperature has been between 31.8 °F (-0.1 °C) and 81.5 °F (27.5 °C).
Low Temperatures
On April 28 in CHICAGO the average low temperature is 44.5 °F (6.9 °C). The lowest recored low temperature was 34.0 °F (1.1 °C) in 2022 and the lowest recored low temperature was 54.5 °F (12.5 °C) in 2025. The low temperature is usually* between 39.8 °F (4.3 °C) and 49.2 °F (9.6 °C). About a quarter of the time, the low temperature is less than 39.8 °F (4.3 °C), and another quarter of the time, the low temperature is greater than and 49.2 °F (9.6 °C). About 95% of the time, the low temperature has been between 30.7 °F (-0.7 °C) and 58.2 °F (14.6 °C).
Frost
On April 28 in CHICAGO expect the temperatures to drop below freezing for a risk of frost about 3.7% 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 — Integrated Surface Dataset (ISD) station ID: 997338 — from year 2005 to 2025