- Country: US
- State: IL
- Latitude: 41.856
- Longitude: -87.609
High Temperatures
On March 14 in NORTHERLY ISLAND the average high temperature is 48.7 °F (9.3 °C). The lowest recored high temperature was 30.0 °F (-1.1 °C) in 2017 and the highest recored high temperature was 76.5 °F (24.7 °C) in 2025. The high temperature is usually* between 40.3 °F (4.6 °C) and 57.1 °F (14.0 °C). About a quarter of the time, the high temperature is less than 40.3 °F (4.6 °C), and another quarter of the time, the high temperature is greater than and 57.1 °F (14.0 °C). About 95% of the time, the high temperature has been between 24.2 °F (-4.3 °C) and 73.2 °F (22.9 °C).
Low Temperatures
On March 14 in NORTHERLY ISLAND the average low temperature is 31.7 °F (-0.2 °C). The lowest recored low temperature was 23.5 °F (-4.7 °C) in 2017 and the lowest recored low temperature was 43.3 °F (6.3 °C) in 2024. The low temperature is usually* between 26.9 °F (-2.8 °C) and 36.4 °F (2.5 °C). About a quarter of the time, the low temperature is less than 26.9 °F (-2.8 °C), and another quarter of the time, the low temperature is greater than and 36.4 °F (2.5 °C). About 95% of the time, the low temperature has been between 17.9 °F (-7.8 °C) and 45.5 °F (7.5 °C).
Frost
On March 14 in NORTHERLY ISLAND expect the temperatures to drop below freezing for a risk of frost about 51.8% 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