- Latitude: 42.0
- Longitude: -87.5
High Temperatures
On May 30 in this location the average high temperature is 73.3 °F (22.9 °C). The lowest recored high temperature was 52.0 °F (11.1 °C) in 1990 and the highest recored high temperature was 91.0 °F (32.8 °C) in 1988. The high temperature is usually* between 66.7 °F (19.3 °C) and 79.9 °F (26.6 °C). About a quarter of the time, the high temperature is less than 66.7 °F (19.3 °C), and another quarter of the time, the high temperature is greater than and 79.9 °F (26.6 °C). About 95% of the time, the high temperature has been between 54.1 °F (12.3 °C) and 92.5 °F (33.6 °C).
Low Temperatures
On May 30 in this location the average low temperature is 55.8 °F (13.2 °C). The lowest recored low temperature was 39.9 °F (4.4 °C) in 1945 and the lowest recored low temperature was 73.0 °F (22.8 °C) in 1978. The low temperature is usually* between 50.2 °F (10.1 °C) and 61.4 °F (16.3 °C). About a quarter of the time, the low temperature is less than 50.2 °F (10.1 °C), and another quarter of the time, the low temperature is greater than and 61.4 °F (16.3 °C). About 95% of the time, the low temperature has been between 39.6 °F (4.2 °C) and 72.0 °F (22.2 °C).
Frost
On May 30 in this location expect the temperatures to drop below freezing for a risk of frost about 0.2% 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 2025
- NORTHERLY ISLAND — Integrated Surface Dataset (ISD) station ID: 998499 — from year 2013 to 2025
- FOSTER AVE CHICAGO — Integrated Surface Dataset (ISD) station ID: 998497 — from year 2015 to 2019
- 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 1988 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 1970
- DUNNE CRIB IL. — Integrated Surface Dataset (ISD) station ID: 744650 — from year 1944 to 1944