- Country: US
- State: IL
- Latitude: 42.067
- Longitude: -87.683
High Temperatures
On August 25 in WILMETTE (CGS) the average high temperature is 73.6 °F (23.1 °C). The lowest recored high temperature was 63.9 °F (17.7 °C) in 1987 and the highest recored high temperature was 83.8 °F (28.8 °C) in 1990. The high temperature is usually* between 68.5 °F (20.3 °C) and 78.7 °F (26.0 °C). About a quarter of the time, the high temperature is less than 68.5 °F (20.3 °C), and another quarter of the time, the high temperature is greater than and 78.7 °F (26.0 °C). About 95% of the time, the high temperature has been between 58.7 °F (14.9 °C) and 88.5 °F (31.4 °C).
Low Temperatures
On August 25 in WILMETTE (CGS) the average low temperature is 65.2 °F (18.4 °C). The lowest recored low temperature was 59.9 °F (15.5 °C) in 1987 and the lowest recored low temperature was 70.0 °F (21.1 °C) in 1990. The low temperature is usually* between 61.0 °F (16.1 °C) and 69.3 °F (20.7 °C). About a quarter of the time, the low temperature is less than 61.0 °F (16.1 °C), and another quarter of the time, the low temperature is greater than and 69.3 °F (20.7 °C). About 95% of the time, the low temperature has been between 53.1 °F (11.7 °C) and 77.2 °F (25.1 °C).
Frost
On August 25 in WILMETTE (CGS) 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:
- WILMETTE (CGS) — Integrated Surface Dataset (ISD) station ID: 722417 — from year 1987 to 1990