Station information
- Integrated Surface Dataset (ISD) station ID: 998499
- Country: US
- State: IL
- Latitude: 41.856
- Longitude: -87.609
High Temperatures
On March 26 in NORTHERLY ISLAND the average high temperature is 47.0 °F (8.3 °C). The lowest recored high temperature was 26.8 °F (-2.9 °C) in 2014 and the highest recored high temperature was 62.1 °F (16.7 °C) in 2024. The high temperature is usually* between 40.4 °F (4.7 °C) and 53.5 °F (12.0 °C). About a quarter of the time, the high temperature is less than 40.4 °F (4.7 °C), and another quarter of the time, the high temperature is greater than and 53.5 °F (12.0 °C). About 95% of the time, the high temperature has been between 28.0 °F (-2.2 °C) and 66.0 °F (18.9 °C).
Low Temperatures
On March 26 in NORTHERLY ISLAND the average low temperature is 33.4 °F (0.8 °C). The lowest recored low temperature was 21.2 °F (-6.0 °C) in 2014 and the lowest recored low temperature was 46.2 °F (7.9 °C) in 2024. The low temperature is usually* between 29.6 °F (-1.3 °C) and 37.2 °F (2.9 °C). About a quarter of the time, the low temperature is less than 29.6 °F (-1.3 °C), and another quarter of the time, the low temperature is greater than and 37.2 °F (2.9 °C). About 95% of the time, the low temperature has been between 22.3 °F (-5.4 °C) and 44.5 °F (6.9 °C).
Frost
On March 26 in NORTHERLY ISLAND expect the temperatures to drop below freezing for a risk of frost about 40.1% 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