- Country: US
- State: IL
- Latitude: 41.856
- Longitude: -87.609
High Temperatures
On September 26 in NORTHERLY ISLAND the average high temperature is 73.7 °F (23.2 °C). The lowest recored high temperature was 66.9 °F (19.4 °C) in 2022 and the highest recored high temperature was 89.6 °F (32.0 °C) in 2017. The high temperature is usually* between 69.1 °F (20.6 °C) and 78.3 °F (25.7 °C). About a quarter of the time, the high temperature is less than 69.1 °F (20.6 °C), and another quarter of the time, the high temperature is greater than and 78.3 °F (25.7 °C). About 95% of the time, the high temperature has been between 60.3 °F (15.7 °C) and 87.0 °F (30.6 °C).
Low Temperatures
On September 26 in NORTHERLY ISLAND the average low temperature is 59.6 °F (15.3 °C). The lowest recored low temperature was 52.7 °F (11.5 °C) in 2022 and the lowest recored low temperature was 69.1 °F (20.6 °C) in 2017. The low temperature is usually* between 56.8 °F (13.8 °C) and 62.4 °F (16.9 °C). About a quarter of the time, the low temperature is less than 56.8 °F (13.8 °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 51.5 °F (10.8 °C) and 67.7 °F (19.8 °C).
Frost
On September 26 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 2012 to 2024