Chicago, IL: Fall

9 October 2026: Fall 2026 so far averaged 68.3°F in Chicago, IL, the warmest 1 September to 9 October since 2025, tied 12th warmest of 155 (with 2023 and 1897).

Fall 2026 so far, to 9 October 2026

Mean temperature: 68.3°F; Warmest since 2025; 12th warmest of 155
Precipitation: 5.11 in; Wettest since 2019; 41st wettest of 156

A normal 1 September to 9 October in Chicago, IL (1991 to 2020): a mean temperature of 63.5°F, between 60.8°F and 68.1°F in eight years of ten and 3.55 in of precipitation, between 1.84 in and 7.26 in in eight years of ten.

The mean temperature of every 1 September to 9 October in Chicago, IL since 1872: 68.3°F in 2026; the highest is 70.1°F, in 2021.

Normal range, 60.8 to 68.1°F

Every year, ranked, as a table

Every 1 September to 9 October in Chicago, IL from 1871 to 2026, ranked: the mean temperature, the mean high and the mean low from the warmest, the precipitation from the wettest; a year missing more than a tenth of its days is not ranked.

Year	Mean, °F	Rank	High, °F	Rank	Low, °F	Rank	Precipitation, in	Rank	Days missing
2026	68.3	12	75.9	26	60.7	10	5.11	41	0
2025	69	4	78.6	6	59.5	20	1.84	132	0
2024	68.9	5	78.8	4	59.1	29	1.33	141	0
2023	68.3	12	76.6	15	60	14	3.68	72	0
2022	64.9	56	74.2	47	55.7	69	2.25	118	0
2021	70.1	1	78.8	4	61.5	3	2.07	123	0
2020	63.9	74	72.6	76	55.3	81	3.50	81	0
2019	67.2	26	75	35	59.4	23	10.21	5	0
2018	68.4	10	76.8	14	59.9	16	7.30	11	0
2017	68.8	7	79.1	2	58.6	36	1.09	145	0
2016	67.7	20	75.7	27	59.6	18	2.98	94	0
2015	66.3	39	74.8	38	57.9	40	4.70	48	0
2014	61.6	123	71.1	102	52.1	129	3.79	69	0
2013	66.5	34	76.3	21	56.7	55	3.60	76	0
2012	61.4	127	71.4	99	51.3	134	2.31	116	0
2011	62	113	71.1	102	52.9	115	3.45	82	0
2010	63.5	85	73.3	60	53.7	104	3.20	91	0
2009	62.1	112	70.5	118	53.6	106	2.85	99	0
2008	63.5	85	72.4	79	54.6	94	14.69	1	0
2007	68.5	9	79.5	1	57.4	48	1.61	136	0
2006	61.7	120	70.9	108	52.4	119	7.26	12	0
2005	68.1	16	78.4	7	57.8	42	3.60	76	0
2004	63.9	74	76	24	51.7	131	1.18	144	0
2003	60.6	137	71.3	100	49.9	148	1.99	126	0
2002	65.5	48	76.2	23	54.8	90	2.72	103	0
2001	60.2	143	69.7	129	50.7	145	7.09	15	0
2000	61.8	118	71.7	96	51.9	130	4.57	50	0
1999	60.8	135	72.3	83	49.3	150	4.11	60	0
1998	65.1	52	74.8	38	55.4	77	3.83	66	0
1997	64.9	56	75.6	31	54.1	99	1.98	127	0
1996	61	134	71.1	102	51	140	2.91	98	0
1995	61.6	123	72	88	51.2	137	2.31	116	0
1994	64.4	66	73.7	54	55.2	83	1.86	130	0
1993	57.9	154	67.7	143	48.1	155	4.96	43	0
1992	61.4	127	72	88	50.9	142	4.55	51	0
1991	62	113	72.9	67	51.1	138	5.67	30	0
1990	64.2	71	74.2	47	54.2	97	3.82	68	0
1989	59.1	148	69.9	126	48.3	153	4.15	56	0
1988	62.3	108	73.4	58	51.3	134	4.60	49	0
1987	61.2	132	72.3	83	50.1	147	0.95	150	0
1986	64.5	65	73.2	61	55.9	65	9.93	6	0
1985	61.9	116	72.9	67	50.9	142	3.43	84	0
1984	60.4	138	71.9	90	49	151	4.13	58	0
1983	63.6	84	75.7	27	51.6	132	5.58	31	0
1982	62.3	108	73.2	61	51.3	134	2.15	120	0
1981	59.1	148	69.4	134	48.7	152	4.15	56	0
1980	62.8	96	73.1	64	52.6	118	5.68	28	0
1979	62.8	96	71.8	94	53.8	102	1.09	145	0
1978	66.4	36	76.6	15	56.3	60	3.18	93	0
1977	62.8	96	70.6	111	55.1	84	10.37	4	0
1976	63.1	92	73.8	52	52.4	119	3.57	79	0
1975	60.4	138	69.6	131	51.1	138	1.09	145	0
1974	58.9	150	69.6	131	48.2	154	1.67	133	0
1973	66.2	40	74.8	38	57.7	43	4.71	47	0
1972	63.1	92	71.8	94	54.5	95	5.77	26	0
1971	68.4	10	77.6	12	59.3	25	3.90	64	0
1970	65	54	74.3	45	55.8	68	7.15	14	0
1969	66.4	36	75.7	27	57.2	51	1.58	137	0
1968	64.3	68	73.6	56	55	86	3.99	62	0
1967	64.3	68	73.8	52	54.8	90	3.25	88	0
1966	63.4	87	73.6	56	53.1	112	0.98	149	0
1965	62.2	110	70.2	120	54.3	96	6.40	23	0
1964	62.5	103	72.8	72	52.2	126	2.70	105	0
1963	67.4	21	78.4	7	56.3	60	2.63	108	0
1962	63.9	74	72.4	79	55.4	77	1.34	140	0
1961	66.8	30	76.5	19	57.1	53	14.17	2	0
1960	67.8	18	76.5	19	59.1	29	1.40	138	0
1959	67.3	23	76.3	21	58.4	38	3.61	75	0
1958	64.7	62	74.5	43	54.9	87	2.92	97	0
1957	62.5	103	71.1	102	53.8	102	1.08	148	0
1956	63.7	80	74.9	36	52.4	119	0.46	156	0
1955	66.5	34	76.6	15	56.3	60	5.27	37	0
1954	68	17	77.7	10	58.2	39	7.94	10	0
1953	65.8	45	78	9	53.6	106	2.67	107	0
1952	61.7	120	73.4	58	49.9	148	1.64	134	0
1951	62.6	101	72.4	79	52.9	115	6.66	20	0
1950	63.2	91	71.3	100	55.1	84	3.19	92	0
1949	61.7	120	72.4	79	51	140	2.68	106	0
1948	64.8	59	73.9	51	55.7	69	2.84	100	0
1947	65.7	46	76.6	15	54.9	87	3.27	87	0
1946	65	54	77.6	12	52.3	123	2.01	125	0
1945	61.2	132	70.1	124	52.2	126	6.58	21	0
1944	64.8	59	74.3	45	55.3	81	2.15	120	0
1943	61.4	127	72.3	83	50.6	146	0.92	151	0
1942	62.5	103	72.6	76	52.4	119	5.55	32	0
1941	67.3	23	75.2	32	59.4	23	9.55	7	0
1940	63.9	74	72.2	87	55.6	73	1.24	143	0
1939	69.2	3	78.9	3	59.5	20	0.70	154	0
1938	63.9	74	70.6	111	57.3	49	5.34	34	0
1937	64	72	71.9	90	56.1	63	3.22	90	0
1936	66.1	42	72.9	67	59.3	25	10.83	3	0
1935	61.6	123	69.9	126	53.3	109	3.63	73	0
1934	63.4	87	70.6	111	56.1	63	4.03	61	0
1933	66.4	36	74.2	47	58.7	34	3.79	69	0
1932	62.8	96	70.3	119	55.4	77	2.18	119	0
1931	70	2	77.7	10	62.4	2	5.33	36	0
1930	65.3	49	72.9	67	57.7	43	2.83	101	0
1929	62.4	106	69.5	133	55.4	77	3.25	88	0
1928	61.9	116	70.2	120	53.7	104	2.60	110	0
1927	67.1	27	74.9	36	59.3	25	7.97	9	0
1926	63.7	80	70.2	120	57.2	51	5.97	24	0
1925	66.7	32	72.3	83	61.1	7	5.05	42	0
1924	60.3	141	66.6	147	54	101	3.87	65	0
1923	62.9	94	68.3	141	57.6	46	2.51	111	0
1922	68.9	5	75.1	34	62.7	1	5.72	27	0
1921	66.1	42	72.9	67	59.3	25	6.68	19	0
1920	67.3	23	74.5	43	60.1	13	3.36	85	0
1919	68.7	8	76	24	61.4	4	7.24	13	0
1918	59.5	146	66.1	149	52.9	115	1.96	129	0
1917	60.8	135	66.9	146	54.7	92	2.73	102	0
1916	64.4	66	73.1	64	55.7	69	2.62	109	0
1915	63.9	74	70.2	120	57.5	47	3.54	80	0
1914	66.8	30	72.7	75	60.9	8	1.98	127	0
1913	65.2	50	71.6	97	58.7	34	1.85	131	0
1912	66.1	42	73	66	59.1	29	4.25	53	0
1911	64.9	56	70.7	110	59.1	29	5.90	25	0
1910	64.8	59	70.6	111	59	33	5.39	33	0
1909	63.4	87	69.2	138	57.7	43	3.60	76	0
1908	66.9	29	74.2	47	59.6	18	2.35	114	0
1907	63.7	80	70.6	111	56.7	55	5.25	39	0
1906	67.1	27	72.8	72	61.4	4	5.68	28	0
1905	67.4	21	74.7	42	60	14	4.20	55	0
1904	62.7	100	69.8	128	55.6	73	3.97	63	0
1903	63.3	90	70.6	111	55.9	65	4.93	45	0
1902	59.6	145	66	150	53.2	110	4.95	44	0
1901	62.4	106	69.4	134	55.5	75	3.45	82	0
1900	65.6	47	72.6	76	58.5	37	1.63	135	0
1899	61.4	127	68.1	142	54.7	92	2.40	113	0
1898	66.2	40	71.9	90	60.5	12	3.77	71	0
1897	68.3	12	75.7	27	60.8	9	0.84	152	0
1896	58.3	152	64.5	154	52.2	126	6.54	22	0
1895	64.7	62	72.8	72	56.7	55	1.27	142	0
1894	62.6	101	69.3	136	55.9	65	8.39	8	0
1893	62.9	94	70.1	124	55.7	69	2.98	94	0
1892	62	113	69.1	139	54.9	87	1.38	139	0
1891	66.7	32	73.7	54	59.7	17	0.56	155	0
1890	60.2	143	66.3	148	54.1	99	2.33	115	0
1889	60.3	141	67.4	145	53.1	112	2.94	96	0
1888	57.7	155	64.7	153	50.8	144	2.04	124	0
1887	61.4	127	69.7	129	53.1	112	5.20	40	0
1886	64	72	71.5	98	56.5	58	6.93	16	0
1885	61.6	123	67.6	144	55.5	75	3.62	74	0
1884	68.2	15	75.2	32	61.2	6	4.23	54	0
1883	59.4	147	65.6	151	53.2	110	3.32	86	0
1882	65.2	50	70.9	108	59.5	20	2.42	112	0
1881	67.8	18	74.8	38	60.7	10	5.34	34	0
1880	61.8	118	69.3	136	54.2	97	4.91	46	0
1879	63.7	80	71	106	56.4	59	2.11	122	0
1878	65.1	52	73.2	61	56.9	54	2.72	103	0
1877	64.6	64	71.9	90	57.3	49	4.13	58	0
1876	58.3	152	64.4	155	52.3	123	3.83	66	0
1875	58.5	151	65.4	152	51.6	132	6.74	18	0
1874	64.3	68	70.6	111	57.9	40	4.46	52	0
1873	60.4	138	68.5	140	52.3	123	5.26	38	0
1872	62.2	110	71	106	53.5	108	6.88	17	0
1871							0.74	153	39

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2021	70.1
1931	70
1939	69.2
2025	69
2024	68.9
1922	68.9
2017	68.8
1919	68.7
2007	68.5
2018	68.4
More years share the last value

Coldest
Year	Mean, °F
1888	57.7
1993	57.9
1896	58.3
1876	58.3
1875	58.5
1974	58.9
1989	59.1
1981	59.1
1883	59.4
1918	59.5

Wettest
Year	Precipitation, in
2008	14.69
1961	14.17
1936	10.83
1977	10.37
2019	10.21
1986	9.93
1941	9.55
1894	8.39
1927	7.97
1954	7.94

Driest
Year	Precipitation, in
1956	0.46
1891	0.56
1939	0.70
1871	0.74
1897	0.84
1943	0.92
1987	0.95
1966	0.98
1957	1.08
2017	1.09
More years share the last value

The hottest, coldest and wettest days

Hottest day: 96°F; 2 September 2026
Coldest night: 47°F; 5 October 2026
Wettest day: 1.41 in; 1 October 2026

Every month, season and year

Months

Seasons

Years

Chicago, IL the day's answers

All-time records

Every answer in words

Fall 2026 so far brought 5.11 in of precipitation in Chicago, IL, the wettest 1 September to 9 October since 2019, 41st wettest of 156.
The hottest day of fall 2026 so far in Chicago, IL: 96°F on Wednesday 2 September 2026.
The coldest night of fall 2026 so far in Chicago, IL: a low of 47°F on Monday 5 October 2026.
The wettest day of fall 2026 so far in Chicago, IL: 1.41 in on Thursday 1 October 2026.