Station information
- Integrated Surface Dataset (ISD) station ID: 998499
- Country: US
- State: IL
- Latitude: 41.856
- Longitude: -87.609
High Temperatures
On August 30 in NORTHERLY ISLAND the average high temperature is 82.4 °F (28.0 °C). The lowest recored high temperature was 73.0 °F (22.8 °C) in 2015 and the highest recored high temperature was 93.6 °F (34.2 °C) in 2013. The high temperature is usually* between 78.3 °F (25.7 °C) and 86.5 °F (30.3 °C). About a quarter of the time, the high temperature is less than 78.3 °F (25.7 °C), and another quarter of the time, the high temperature is greater than and 86.5 °F (30.3 °C). About 95% of the time, the high temperature has been between 70.5 °F (21.4 °C) and 94.3 °F (34.6 °C).
Low Temperatures
On August 30 in NORTHERLY ISLAND the average low temperature is 68.7 °F (20.4 °C). The lowest recored low temperature was 61.0 °F (16.1 °C) in 2015 and the lowest recored low temperature was 73.9 °F (23.3 °C) in 2014. The low temperature is usually* between 65.6 °F (18.7 °C) and 71.8 °F (22.1 °C). About a quarter of the time, the low temperature is less than 65.6 °F (18.7 °C), and another quarter of the time, the low temperature is greater than and 71.8 °F (22.1 °C). About 95% of the time, the low temperature has been between 59.8 °F (15.5 °C) and 77.6 °F (25.3 °C).
Frost
On August 30 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 2012 to 2024