High Temperatures
On October 3 in Chicago, IL (Illinois), USA, the average high temperature is 69.5 °F (20.9 °C). The lowest recored high temperature was 48.9 °F (9.4 °C) in 1987 and the highest recored high temperature was 90.0 °F (32.2 °C) in 1954. The high temperature is usually* between 63.2 °F (17.3 °C) and 75.9 °F (24.4 °C). About a quarter of the time, the high temperature is less than 63.2 °F (17.3 °C), and another quarter of the time, the high temperature is greater than and 75.9 °F (24.4 °C). About 95% of the time, the high temperature has been between 51.0 °F (10.6 °C) and 88.0 °F (31.1 °C).
Low Temperatures
On October 3 in Chicago, IL (Illinois), USA, the average low temperature is 51.9 °F (11.0 °C). The lowest recored low temperature was 28.0 °F (-2.2 °C) in 1974 and the lowest recored low temperature was 70.0 °F (21.1 °C) in 1983. The low temperature is usually* between 45.5 °F (7.5 °C) and 58.2 °F (14.6 °C). About a quarter of the time, the low temperature is less than 45.5 °F (7.5 °C), and another quarter of the time, the low temperature is greater than and 58.2 °F (14.6 °C). About 95% of the time, the low temperature has been between 33.5 °F (0.8 °C) and 70.3 °F (21.3 °C).
Frost
On October 3 in Chicago, IL (Illinois), USA, expect the temperatures to drop below freezing for a risk of frost about 1.7% 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 2012 to 2024
- CHICAGO O'HARE INTERNATIONAL — Integrated Surface Dataset (ISD) station ID: 725300 — Weather Bureau Army Navy (WBAN): 94846 — from year 1947 to 2024
- CHICAGO — Integrated Surface Dataset (ISD) station ID: 997338 — from year 2005 to 2024
- 9087044 - CALUMET IL — Integrated Surface Dataset (ISD) station ID: 997255 — from year 2005 to 2024
- CHICAGO MIDWAY INTL ARPT — Integrated Surface Dataset (ISD) station ID: 725340 — Weather Bureau Army Navy (WBAN): 14819 — from year 1973 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
- WILMETTE (MARINES)& — Integrated Surface Dataset (ISD) station ID: 725307 — from year 1976 to 1995
- CHICAGO / CALUMET COAST GUARD — Integrated Surface Dataset (ISD) station ID: 725344 — from year 1994 to 1995
- NAVAL AIR STATION — Integrated Surface Dataset (ISD) station ID: 725306 — Weather Bureau Army Navy (WBAN): 14855 — from year 1973 to 1994
- WILMETTE (CGS) — Integrated Surface Dataset (ISD) station ID: 722417 — from year 1987 to 1990
- CALUMET (CGS) — Integrated Surface Dataset (ISD) station ID: 722418 — from year 1987 to 1989
- CHICAGO OHARE INTL AP — Weather Bureau Army Navy (WBAN): 94846 — from year 1970 to 1972
- CHICAGO MIDWAY AP — Weather Bureau Army Navy (WBAN): 14819 — from year 1948 to 1972
- 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
- PARK RIDGE AF — Weather Bureau Army Navy (WBAN): 14810 — from year 1949 to 1958
- DUNNE CRIB IL. — Integrated Surface Dataset (ISD) station ID: 744650 — from year 1943 to 1943