Station information
- Integrated Surface Dataset (ISD) station ID: 998499
- Country: US
- State: IL
- Latitude: 41.856
- Longitude: -87.609
High Temperatures
On May 5 in NORTHERLY ISLAND the average high temperature is 58.5 °F (14.7 °C). The lowest recored high temperature was 45.7 °F (7.6 °C) in 2020 and the highest recored high temperature was 71.1 °F (21.7 °C) in 2015. The high temperature is usually* between 52.0 °F (11.1 °C) and 65.1 °F (18.4 °C). About a quarter of the time, the high temperature is less than 52.0 °F (11.1 °C), and another quarter of the time, the high temperature is greater than and 65.1 °F (18.4 °C). About 95% of the time, the high temperature has been between 39.5 °F (4.2 °C) and 77.6 °F (25.3 °C).
Low Temperatures
On May 5 in NORTHERLY ISLAND the average low temperature is 44.1 °F (6.7 °C). The lowest recored low temperature was 39.0 °F (3.9 °C) in 2020 and the lowest recored low temperature was 51.1 °F (10.6 °C) in 2024. The low temperature is usually* between 41.7 °F (5.4 °C) and 46.4 °F (8.0 °C). About a quarter of the time, the low temperature is less than 41.7 °F (5.4 °C), and another quarter of the time, the low temperature is greater than and 46.4 °F (8.0 °C). About 95% of the time, the low temperature has been between 37.4 °F (3.0 °C) and 50.8 °F (10.4 °C).
Frost
On May 5 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