Chicago, IL

3 October 2026: 2026 so far brought 36.08 in of precipitation in Chicago, IL, the wettest 1 January to 3 October since 2019, tied 7th wettest of 156 (with 1983).

Saturday 3 October 2026

Saturday 3 October 2026: a high of 69°F in Chicago, IL, the coldest 3 October day since 2020, tied 72nd coldest of 155 (with 2011, 1975, 1927 and 3 other years).
Saturday 3 October 2026: a low of 48°F in Chicago, IL, the coldest 3 October night since 2022, tied 51st coldest of 155 (with 2015, 1895 and 1874).
No measurable precipitation in Chicago, IL for 2 days to Saturday 3 October 2026.

Every year on this date

Every 3 October high in Chicago, IL since 1872: 69°F in 2026; the highest is 91°F, in 1954.

Every 3 October low in Chicago, IL since 1872: 48°F in 2026; the lowest is 29°F, in 1981 and 1974.

Above the normal range
In it
Below it
Normal range
This year and the extreme

Every year as a table

Year	High, °F	Low, °F
2026	69	48
2025	89	64
2024	80	54
2023	87	64
2022	70	45
2021	76	65
2020	56	46
2019	67	49
2018	88	59
2017	78	67
2016	67	57
2015	54	48
2014	65	43
2013	78	60
2012	63	59
2011	69	44
2010	56	42
2009	57	47
2008	60	44
2007	74	55
2006	82	55
2005	85	70
2004	70	36
2003	53	42
2002	63	58
2001	78	53
2000	73	44
1999	47	41
1998	58	51
1997	87	60
1996	55	38
1995	71	51
1994	63	53
1993	71	33
1992	82	51
1991	72	54
1990	81	51
1989	53	35
1988	64	43
1987	54	31
1986	74	61
1985	68	37
1984	75	43
1983	80	61
1982	75	45
1981	61	29
1980	49	37
1979	60	49
1978	67	49
1977	64	44
1976	83	58
1975	69	40
1974	60	29
1973	77	55
1972	73	55
1971	75	59
1970	58	40
1969	83	58
1968	61	40
1967	82	62
1966	74	50
1965	57	44
1964	76	44
1963	72	52
1962	72	61
1961	61	41
1960	63	46
1959	72	58
1958	70	42
1957	63	54
1956	75	50
1955	78	52
1954	91	68
1953	84	65
1952	64	35
1951	85	66
1950	58	41
1949	72	63
1948	59	51
1947	83	54
1946	80	44
1945	59	35
1944	59	52
1943	62	51
1942	79	56
1941	76	64
1940	68	52
1939	75	50
1938	70	51
1937	64	58
1936	66	44
1935	50	42
1934	60	56
1933	70	51
1932	74	56
1931	83	59
1930	64	55
1929	56	51
1928	78	55
1927	69	52
1926	85	63
1925	66	61
1924	75	55
1923	72	52
1922	78	69
1921	57	45
1920	74	57
1919	84	68
1918	57	50
1917	61	52
1916	79	56
1915	79	60
1914	69	59
1913	73	52
1912	66	55
1911	79	54
1910	82	65
1909	63	59
1908	62	45
1907	74	63
1906	68	59
1905	77	56
1904	59	45
1903	83	63
1902	59	56
1901	53	39
1900	83	65
1899	77	52
1898	75	64
1897	69	57
1896	57	54
1895	64	48
1894	55	40
1893	54	50
1892	80	61
1891	84	66
1890	68	55
1889	73	55
1888	54	32
1887	69	42
1886	68	45
1885	67	47
1884	83	68
1883	55	40
1882	67	61
1881	70	62
1880	61	47
1879	72	60
1878	72	54
1877	80	58
1876	54	47
1875	67	46
1874	57	48
1873	65	54
1872	65	52

The 20 warmest 3 October highs in Chicago, IL since 1872.
Rank	Year	Value
1	1954	91°F
2	2025	89°F
3	2018	88°F
4	2023	87°F
4	1997	87°F
6	2005	85°F
6	1951	85°F
6	1926	85°F
9	1953	84°F
9	1919	84°F
9	1891	84°F
12	1976	83°F
12	1969	83°F
12	1947	83°F
12	1931	83°F
12	1903	83°F
12	1900	83°F
12	1884	83°F
19	2006	82°F
19	1992	82°F

The 20 coldest 3 October lows in Chicago, IL since 1872.
Rank	Year	Value
1	1981	29°F
1	1974	29°F
3	1987	31°F
4	1888	32°F
5	1993	33°F
6	1989	35°F
6	1952	35°F
6	1945	35°F
9	2004	36°F
10	1985	37°F
10	1980	37°F
12	1996	38°F
13	1901	39°F
14	1975	40°F
14	1970	40°F
14	1968	40°F
14	1894	40°F
14	1883	40°F
19	1999	41°F
19	1961	41°F

The 20 wettest 3 October days in Chicago, IL since 1871.
Rank	Year	Value
1	1954	3.95 in
2	1986	1.78 in
3	1880	1.30 in
4	1910	0.96 in
5	1873	0.91 in
6	1877	0.89 in
7	1941	0.84 in
8	1999	0.78 in
9	2014	0.68 in
10	2000	0.65 in
11	1907	0.64 in
12	2019	0.57 in
13	1903	0.40 in
14	1911	0.39 in
15	1990	0.38 in
15	1926	0.38 in
17	1949	0.33 in
18	1942	0.28 in
19	2003	0.27 in
19	1991	0.27 in

This month, season and year so far

October 2026 so far averaged 61.2°F in Chicago, IL, the warmest 1 to 3 October since 2025, tied 69th warmest of 155 (with 1943).
October 2026 so far brought 1.41 in of precipitation in Chicago, IL, the wettest 1 to 3 October since 2019, 9th wettest of 156.
Fall 2026 so far averaged 69.3°F in Chicago, IL, the warmest 1 September to 3 October since 2025, tied 13th warmest of 155 (with 2017, 1960 and 1891).
Fall 2026 so far brought 5.11 in of precipitation in Chicago, IL, the wettest 1 September to 3 October since 2019, 31st wettest of 156.
2026 so far averaged 56.2°F in Chicago, IL, the warmest 1 January to 3 October since 2024, tied 11th warmest of 154 (with 2021).
The 30 days to Saturday 3 October 2026 brought 5.11 in of precipitation in Chicago, IL, the driest 30 days to 3 October since 2025, 130th driest of 156.
The 60 days to Saturday 3 October 2026 brought 8.28 in of precipitation in Chicago, IL, the driest 60 days to 3 October since 2025, 117th driest of 156.
The 90 days to Saturday 3 October 2026 brought 11.93 in of precipitation in Chicago, IL, the driest 90 days to 3 October since 2025, 114th driest of 156.

Daily highs and lows in Chicago, IL, 1 to 3 October 2026, with each date's record range and its 1991 to 2020 normal range.

High
Low
Normal range
Record range

Every day as a table

Day	High, °F	Low, °F	Record high	Record high year	Record low	Record low year	Normal high	Normal low
1 October 2026	70	61	92	1971	32	1974	71	48.5
2 October 2026	67	52	91	1971	28	1974	68	50.5
3 October 2026	69	48	91	1954	29	1981	68	51

Every year's 1 to 3 October in Chicago, IL, ranked by its mean temperature: October 2026 so far is the tied 69th warmest of 155.

Above the normal range
Above the normal
Below the normal
Below the normal range
Normal range

Every year, ranked, as a table

Rank	Year	Mean, °F
1	1971	76.2
2	2023	75.2
3	1919	74.3
4	1922	74.2
5	2025	72.7
6	1891	72.5
7	1954	72.3
8	2021	72.2
8	1951	72.2
8	1879	72.2
11	1969	71.7
12	1884	71.3
13	1953	70.8
14	2005	70.5
15	1926	70.2
16	2013	69.5
16	1967	69.5
18	1976	68.8
18	1931	68.8
20	1910	68.3
21	1900	68
21	1877	68
23	2017	67.7
23	1898	67.7
25	1983	67.5
26	1927	67
27	2018	66.8
27	2002	66.8
27	1942	66.8
27	1907	66.8
31	1905	66.7
31	1903	66.7
33	1932	66.5
33	1878	66.5
35	2000	66.3
35	1897	66.3
37	1963	66.2
38	2019	65.8
39	2006	65.5
40	2007	65.3
41	1962	65
42	1937	64.8
43	1973	64.7
44	1950	64.5
45	2001	64.3
46	1956	64.2
47	1991	64
47	1882	64
49	1968	63.8
49	1925	63.8
51	1959	63.7
51	1915	63.7
53	1995	63.5
54	1986	63.3
54	1892	63.3
56	2024	63.2
56	1949	63.2
58	1941	63
58	1881	63
60	1982	62.7
60	1972	62.7
62	1916	62.5
62	1913	62.5
64	1992	62.3
65	1885	62.2
66	1914	62
67	1997	61.8
68	1924	61.5
69	2026	61.2
69	1943	61.2
71	2016	61
71	1880	61
73	1964	60.8
73	1928	60.8
75	1911	60.7
76	2014	60.3
76	1923	60.3
78	1890	60.2
79	1909	59.8
80	1990	59.7
80	1906	59.7
82	2012	59.5
82	1893	59.5
84	1948	59.3
84	1940	59.3
84	1933	59.3
87	1957	59.2
87	1955	59.2
87	1889	59.2
90	1938	59
91	1978	58.8
92	1979	58.7
93	1947	58.5
93	1934	58.5
95	1887	58.3
96	2022	58.2
96	1944	58.2
98	1912	57.8
99	1994	57.7
100	1988	57.3
101	1952	57
101	1921	57
103	1960	56.8
103	1920	56.8
105	1970	56.7
105	1946	56.7
105	1901	56.7
108	1904	56.5
109	1939	56.3
109	1899	56.3
111	1917	55.8
112	1874	55.7
113	1872	55.5
114	1996	55.3
114	1930	55.3
114	1929	55.3
114	1894	55.3
118	1873	55.2
119	1966	55
120	1980	54.8
120	1977	54.8
120	1902	54.8
123	1989	54.7
123	1896	54.7
125	1965	54.2
126	2015	54
126	2004	54
126	1895	54
129	2010	53.5
129	1984	53.5
131	2011	53
132	1918	52.7
133	2008	52.3
134	1958	52.2
135	1998	52
135	1936	52
137	1875	51.3
138	2009	51.2
139	2020	50.8
140	1975	50.7
141	1993	50.5
141	1945	50.5
143	1876	49.7
144	1888	49.5
145	1883	49
146	1935	48.7
146	1908	48.7
148	1985	48.5
149	1981	48
149	1886	48
151	1987	47.7
152	1999	46.8
153	1961	46.7
154	2003	44.3
155	1974	42

This year so far

Chicago, IL has had 16 days at 90°F or above in 2026 through 3 October, the most by that date since 2025, tied 65th most of 154 (with 2022, 2017, 2016 and 7 other years).
Chicago, IL has had 71 freezing nights (a low of 32°F or below) in 2026 through 3 October, the most by that date since 2022, tied 110th most of 154 (with 2000, 1954, 1953 and 1 other year).
The last freeze of spring 2026 in Chicago, IL came on Saturday 2 May 2026, the latest since 2020, tied 17th latest of 154 (with 1978, 1940 and 1875).

Records of the coming dates

Chicago, IL on 5 October: record high 88°F (1997), record low 28°F (1980).
Chicago, IL on 6 October: record high 94°F (1963), record low 28°F (1952).

The station

Daily records for Chicago, IL run from 1871 to 3 October 2026, with 531 days missing; current station CHICAGO OHARE INTL AP.

Our calculation from NOAA records for Chicago, IL, 1871 to 2026. Preliminary until NOAA's final data.

All-time records

Nearby

Rockford, IL 61.7 mi
Milwaukee, WI 68.7 mi
South Bend, IN 85.0 mi
Holland, MI 108.3 mi
Madison, WI 108.8 mi
Cook County, IL county average
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