As of 01:57 CDT

Chicago, IL weather in September

68°

Chicago, Sunday, 9 August, 01:57

Clear. Feels like 68°. High 83°, low 65°.

Pressure30.00 inHg

Wind4 mph SW

Humidity86%

Visibility6.2 mi

Dew point63°

See detailed hourly forecast

In September, Chicago, IL averages a high of 73.4° and a low of 60.5°. About 3.2 inches of precipitation fall over the month (9 wet days). The record high is 94.3° (2023) and the record low 38.1° (1995). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	78.3°	65.5°	30%	93.2° (2011)	54.7° (1967)
2	78.8°	65.7°	25%	91.4° (2011)	52.2° (1965)
3	78.6°	65.3°	25%	94.3° (2023)	53.1° (1974)
4	77.4°	64.6°	33%	91.9° (2023)	51.3° (2025)
5	77.5°	64°	27%	90.7° (2023)	54° (2010)
6	77.2°	64°	38%	91.9° (1990)	50.7° (2025)
7	77.4°	63.7°	33%	91.9° (1960)	49.8° (2025)
8	75.7°	63.3°	37%	90.9° (1960)	48.9° (2024)
9	75.2°	63°	32%	91.8° (2013)	52.5° (1986)
10	76.1°	62.2°	30%	93.7° (2013)	53.1° (2008)
11	75.9°	62.1°	32%	89.6° (2005)	48.6° (1993)
12	75.6°	62.1°	32%	89.6° (2005)	48.4° (2014)
13	75.2°	62.1°	40%	91.2° (2005)	44.8° (2014)
14	73.9°	61.2°	32%	87.1° (1991)	46.2° (1975)
15	72.7°	60.4°	23%	88° (1991)	47.8° (2007)
16	72.3°	60.1°	25%	86.7° (2017)	48° (1966)
17	73.4°	60.4°	38%	88° (2021)	49.6° (1984)
18	73.2°	60.3°	32%	85.3° (2022)	49.6° (1973)
19	73.2°	60.8°	33%	87.1° (1978)	45.9° (1991)
20	73.4°	59.7°	48%	88.7° (2024)	45.9° (1991)
21	72°	59.2°	32%	89.6° (2017)	45.7° (1983)
22	70.3°	58.1°	45%	89.2° (2017)	40.6° (1995)
23	68.7°	55.9°	32%	87.8° (2017)	38.1° (1995)
24	69.3°	56.3°	25%	89.1° (2007)	43.2° (1976)
25	69.6°	56.7°	42%	86.5° (2017)	45.5° (2001)
26	69.6°	56.5°	28%	88.9° (2017)	45.3° (1984)
27	69.1°	56.3°	28%	85.5° (2021)	43.5° (1991)
28	67.1°	55.9°	25%	83.5° (1986)	44.6° (1961)
29	67.6°	54.3°	28%	82.4° (2002)	39.2° (1967)
30	68.4°	54.9°	17%	84.9° (2019)	38.8° (1993)