- Latitude: 42.0
- Longitude: -87.5
High Temperatures
On October 18 in this location the average high temperature is 62.2 °F (16.8 °C). The lowest recored high temperature was 39.0 °F (3.9 °C) in 1972 and the highest recored high temperature was 84.9 °F (29.4 °C) in 1950. The high temperature is usually* between 55.7 °F (13.1 °C) and 68.8 °F (20.4 °C). About a quarter of the time, the high temperature is less than 55.7 °F (13.1 °C), and another quarter of the time, the high temperature is greater than and 68.8 °F (20.4 °C). About 95% of the time, the high temperature has been between 43.2 °F (6.2 °C) and 81.3 °F (27.4 °C).
Low Temperatures
On October 18 in this location the average low temperature is 46.6 °F (8.1 °C). The lowest recored low temperature was 21.0 °F (-6.1 °C) in 1948 and the lowest recored low temperature was 63.9 °F (17.7 °C) in 2007. The low temperature is usually* between 41.0 °F (5.0 °C) and 52.2 °F (11.2 °C). About a quarter of the time, the low temperature is less than 41.0 °F (5.0 °C), and another quarter of the time, the low temperature is greater than and 52.2 °F (11.2 °C). About 95% of the time, the low temperature has been between 30.3 °F (-0.9 °C) and 62.9 °F (17.2 °C).
Frost
On October 18 in this location expect the temperatures to drop below freezing for a risk of frost about 3.9% 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:
- CHICAGO — Integrated Surface Dataset (ISD) station ID: 997338 — from year 2005 to 2024
- NORTHERLY ISLAND — Integrated Surface Dataset (ISD) station ID: 998499 — from year 2012 to 2024
- FOSTER AVE CHICAGO — Integrated Surface Dataset (ISD) station ID: 998497 — from year 2015 to 2020
- CHICAGO/MEIGS — Integrated Surface Dataset (ISD) station ID: 725346 — from year 2000 to 2002
- CHICAGO/MEIGS — Integrated Surface Dataset (ISD) station ID: 725346 — Weather Bureau Army Navy (WBAN): 94866 — from year 1973 to 1999
- NAVAL AIR STATION — Integrated Surface Dataset (ISD) station ID: 725306 — Weather Bureau Army Navy (WBAN): 14855 — from year 1973 to 1994
- WILMETTE (MARINES)& — Integrated Surface Dataset (ISD) station ID: 725307 — from year 1976 to 1994
- WILMETTE (CGS) — Integrated Surface Dataset (ISD) station ID: 722417 — from year 1987 to 1990
- NAVAL AIR STATION — Weather Bureau Army Navy (WBAN): 14855 — from year 1945 to 1972
- CHICAGO MEIGS FIELD — Weather Bureau Army Navy (WBAN): 94866 — from year 1966 to 1969
- DUNNE CRIB IL. — Integrated Surface Dataset (ISD) station ID: 744650 — from year 1943 to 1943