Station information
- Integrated Surface Dataset (ISD) station ID: 998499
- Country: US
- State: IL
- Latitude: 41.856
- Longitude: -87.609
High Temperatures
On April 26 in NORTHERLY ISLAND the average high temperature is 60.8 °F (16.0 °C). The lowest recored high temperature was 47.1 °F (8.4 °C) in 2015 and the highest recored high temperature was 80.4 °F (26.9 °C) in 2016. The high temperature is usually* between 52.9 °F (11.6 °C) and 68.6 °F (20.3 °C). About a quarter of the time, the high temperature is less than 52.9 °F (11.6 °C), and another quarter of the time, the high temperature is greater than and 68.6 °F (20.3 °C). About 95% of the time, the high temperature has been between 38.1 °F (3.4 °C) and 83.4 °F (28.6 °C).
Low Temperatures
On April 26 in NORTHERLY ISLAND the average low temperature is 42.0 °F (5.6 °C). The lowest recored low temperature was 37.0 °F (2.8 °C) in 2024 and the lowest recored low temperature was 51.1 °F (10.6 °C) in 2017. The low temperature is usually* between 38.5 °F (3.6 °C) and 45.6 °F (7.6 °C). About a quarter of the time, the low temperature is less than 38.5 °F (3.6 °C), and another quarter of the time, the low temperature is greater than and 45.6 °F (7.6 °C). About 95% of the time, the low temperature has been between 31.6 °F (-0.2 °C) and 52.4 °F (11.4 °C).
Frost
On April 26 in NORTHERLY ISLAND expect the temperatures to drop below freezing for a risk of frost about 2.9% 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