Station information
- Integrated Surface Dataset (ISD) station ID: 998499
- Country: US
- State: IL
- Latitude: 41.856
- Longitude: -87.609
High Temperatures
On March 27 in NORTHERLY ISLAND the average high temperature is 49.1 °F (9.5 °C). The lowest recored high temperature was 30.9 °F (-0.6 °C) in 2022 and the highest recored high temperature was 64.0 °F (17.8 °C) in 2016. The high temperature is usually* between 41.5 °F (5.3 °C) and 56.7 °F (13.7 °C). About a quarter of the time, the high temperature is less than 41.5 °F (5.3 °C), and another quarter of the time, the high temperature is greater than and 56.7 °F (13.7 °C). About 95% of the time, the high temperature has been between 27.0 °F (-2.8 °C) and 71.3 °F (21.8 °C).
Low Temperatures
On March 27 in NORTHERLY ISLAND the average low temperature is 33.5 °F (0.8 °C). The lowest recored low temperature was 24.1 °F (-4.4 °C) in 2022 and the lowest recored low temperature was 40.5 °F (4.7 °C) in 2017. The low temperature is usually* between 29.9 °F (-1.1 °C) and 37.1 °F (2.8 °C). About a quarter of the time, the low temperature is less than 29.9 °F (-1.1 °C), and another quarter of the time, the low temperature is greater than and 37.1 °F (2.8 °C). About 95% of the time, the low temperature has been between 23.1 °F (-4.9 °C) and 43.9 °F (6.6 °C).
Frost
On March 27 in NORTHERLY ISLAND expect the temperatures to drop below freezing for a risk of frost about 38.7% 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