- Country: US
- State: IL
- Latitude: 41.856
- Longitude: -87.609
High Temperatures
On June 12 in NORTHERLY ISLAND the average high temperature is 78.3 °F (25.7 °C). The lowest recored high temperature was 70.0 °F (21.1 °C) in 2015 and the highest recored high temperature was 91.0 °F (32.8 °C) in 2016. The high temperature is usually* between 73.5 °F (23.1 °C) and 83.1 °F (28.4 °C). About a quarter of the time, the high temperature is less than 73.5 °F (23.1 °C), and another quarter of the time, the high temperature is greater than and 83.1 °F (28.4 °C). About 95% of the time, the high temperature has been between 64.4 °F (18.0 °C) and 92.2 °F (33.5 °C).
Low Temperatures
On June 12 in NORTHERLY ISLAND the average low temperature is 58.9 °F (15.0 °C). The lowest recored low temperature was 53.1 °F (11.7 °C) in 2024 and the lowest recored low temperature was 68.0 °F (20.0 °C) in 2021. The low temperature is usually* between 55.5 °F (13.0 °C) and 62.4 °F (16.9 °C). About a quarter of the time, the low temperature is less than 55.5 °F (13.0 °C), and another quarter of the time, the low temperature is greater than and 62.4 °F (16.9 °C). About 95% of the time, the low temperature has been between 48.9 °F (9.4 °C) and 69.0 °F (20.6 °C).
Frost
On June 12 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