Station information
- Integrated Surface Dataset (ISD) station ID: 997255
- Country: US
- Latitude: 41.73
- Longitude: -87.54
High Temperatures
On August 15 in 9087044 - CALUMET IL the average high temperature is 78.8 °F (26.0 °C). The lowest recored high temperature was 71.4 °F (21.9 °C) in 2023 and the highest recored high temperature was 88.9 °F (31.6 °C) in 2025. The high temperature is usually* between 74.9 °F (23.9 °C) and 82.6 °F (28.1 °C). About a quarter of the time, the high temperature is less than 74.9 °F (23.9 °C), and another quarter of the time, the high temperature is greater than and 82.6 °F (28.1 °C). About 95% of the time, the high temperature has been between 67.6 °F (19.8 °C) and 90.0 °F (32.2 °C).
Low Temperatures
On August 15 in 9087044 - CALUMET IL the average low temperature is 67.6 °F (19.8 °C). The lowest recored low temperature was 54.7 °F (12.6 °C) in 2014 and the lowest recored low temperature was 75.2 °F (24.0 °C) in 2010. The low temperature is usually* between 64.6 °F (18.1 °C) and 70.6 °F (21.5 °C). About a quarter of the time, the low temperature is less than 64.6 °F (18.1 °C), and another quarter of the time, the low temperature is greater than and 70.6 °F (21.5 °C). About 95% of the time, the low temperature has been between 58.9 °F (14.9 °C) and 76.4 °F (24.6 °C).
Frost
On August 15 in 9087044 - CALUMET IL 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:
- 9087044 - CALUMET IL — Integrated Surface Dataset (ISD) station ID: 997255 — from year 2005 to 2025