Station information
- Integrated Surface Dataset (ISD) station ID: 998499
- Country: US
- State: IL
- Latitude: 41.856
- Longitude: -87.609
High Temperatures
On June 22 in NORTHERLY ISLAND the average high temperature is 82.2 °F (27.9 °C). The lowest recored high temperature was 66.9 °F (19.4 °C) in 2019 and the highest recored high temperature was 97.0 °F (36.1 °C) in 2022. The high temperature is usually* between 76.4 °F (24.7 °C) and 88.0 °F (31.1 °C). About a quarter of the time, the high temperature is less than 76.4 °F (24.7 °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 65.4 °F (18.5 °C) and 99.1 °F (37.3 °C).
Low Temperatures
On June 22 in NORTHERLY ISLAND the average low temperature is 64.9 °F (18.3 °C). The lowest recored low temperature was 55.9 °F (13.3 °C) in 2019 and the lowest recored low temperature was 75.9 °F (24.4 °C) in 2025. The low temperature is usually* between 60.7 °F (16.0 °C) and 69.1 °F (20.6 °C). About a quarter of the time, the low temperature is less than 60.7 °F (16.0 °C), and another quarter of the time, the low temperature is greater than and 69.1 °F (20.6 °C). About 95% of the time, the low temperature has been between 52.8 °F (11.5 °C) and 77.1 °F (25.0 °C).
Frost
On June 22 in NORTHERLY ISLAND 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:
- NORTHERLY ISLAND — Integrated Surface Dataset (ISD) station ID: 998499 — from year 2013 to 2025