- Country: US
- State: IL
- Latitude: 41.856
- Longitude: -87.609
High Temperatures
On March 25 in NORTHERLY ISLAND the average high temperature is 45.4 °F (7.4 °C). The lowest recored high temperature was 33.6 °F (0.9 °C) in 2014 and the highest recored high temperature was 61.7 °F (16.5 °C) in 2024. The high temperature is usually* between 38.3 °F (3.5 °C) and 52.4 °F (11.3 °C). About a quarter of the time, the high temperature is less than 38.3 °F (3.5 °C), and another quarter of the time, the high temperature is greater than and 52.4 °F (11.3 °C). About 95% of the time, the high temperature has been between 24.9 °F (-4.0 °C) and 65.8 °F (18.8 °C).
Low Temperatures
On March 25 in NORTHERLY ISLAND the average low temperature is 33.3 °F (0.7 °C). The lowest recored low temperature was 25.3 °F (-3.7 °C) in 2014 and the lowest recored low temperature was 51.3 °F (10.7 °C) in 2024. The low temperature is usually* between 29.3 °F (-1.5 °C) and 37.3 °F (3.0 °C). About a quarter of the time, the low temperature is less than 29.3 °F (-1.5 °C), and another quarter of the time, the low temperature is greater than and 37.3 °F (3.0 °C). About 95% of the time, the low temperature has been between 21.7 °F (-5.7 °C) and 45.0 °F (7.2 °C).
Frost
On March 25 in NORTHERLY ISLAND expect the temperatures to drop below freezing for a risk of frost about 41.2% 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