Carbondale, IL

4 October 2026: Fall 2026 so far averaged 76.5°F in Carbondale, IL (1 day missing), the warmest 1 September to 4 October since 1925 (1948 excluded: 18 of 34 days missing; 1984 excluded: 34 of 34 days missing; 1985 excluded: 6 of 34 days missing; 2 more years excluded for missing days), 3rd warmest of 115.

Sunday 4 October 2026

High: 82°F; Warmest since 2025; 39th warmest of 118
Low: 52°F; Warmest since 2025; 50th warmest of 118

No measurable precipitation in Carbondale, IL for 2 days to Sunday 4 October 2026.

Every 4 October high in Carbondale, IL since 1899: 82°F in 2026; the highest is 94°F, in 1954 and 1922.

Normal range, 61.9 to 87°F

Every year as a table

Every 4 October low in Carbondale, IL since 1899: 52°F in 2026; the lowest is 27°F, in 1981.

Year	High, °F	Low, °F
2026	82	52
2025	85	57
2024	83	51
2023	82	57
2022	77	33
2021	82	59
2020	64	36
2019	76	52
2018	81	65
2017	84	66
2016	82	51
2015	61	50
2014	57	36
2013	87	69
2012	80	54
2011	81	44
2010	66	30
2009	62	39
2008	77	43
2007	89	57
2006	89	62
2005	87	63
2004	77	47
2003	70	45
2002	87	57
2001	80	49
2000	84	60
1999	59	34
1998	81	59
1997	83	62
1996	63	40
1995	76	46
1994	77	44
1993	66	38
1992	76	46
1991	81	57
1990	81	49
1989	71	36
1988	69	38
1987	60	29
1983	87	60
1982	80	58
1981	70	27
1980	54	38
1979	78	42
1978	69	40
1977	67	35
1976	84	47
1975	66	31
1974	63	31
1973	87	66
1972	80	59
1971	78	54
1970	72	36
1969	88	58
1968	63	33
1967	88	62
1966	71	59
1965	64	41
1964	70	45
1963	80	38
1962	78	48
1961	76	35
1960	82	52
1959	89	67
1958	78	40
1957	75	52
1956	84	59
1955	75	64
1954	94	59
1953	87	64
1952	78	42
1951	89	65
1950	61	42
1949	69	65
1947	71	54
1946	83	46
1945	65	47
1944	86	63
1943	64	45
1942	81	56
1941	85	72
1940	76	46
1939	85	47
1938	89	47
1937	83	67
1936	81	45
1935	63	33
1934	78	43
1933	74	46
1932	69	53
1931	87	59
1930	84	48
1929	61	47
1928	80	66
1927	78	45
1926	79	68
1925	78	68
1924	72	64
1923	77	51
1922	94	52
1921	65	42
1920	89	57
1919	81	68
1918	86	49
1917	81	46
1916	87	41
1915	74	60
1914	76	53
1913	84	48
1912	85	49
1911	83	64
1910	78	62
1903	89	62
1902	67	52
1901	61	40
1900	90	59
1899	86	41

The forecast

Date	High	Low
6 October	78°FRecord 92°F, 2007	44°FRecord 29°F, 1980
7 October	Record 93°F, 2007, 1939	Record 25°F, 1952

The month and the year

Every year's 1 to 4 October in Carbondale, IL, ranked by its mean temperature: October 2026 so far is the 33rd warmest of 115.

Every year, ranked, as a table

Rank	Year	Mean, °F
1	1926	77.3
2	1911	76.6
3	1919	76
4	2002	75.1
4	1954	75.1
6	2013	74.6
7	1953	74.4
7	1903	74.4
9	1910	74.3
10	2019	73.6
10	2018	73.6
12	1941	73.3
13	1922	73.1
14	1971	73
15	2025	72.6
16	2005	72.3
17	1951	72.1
18	1944	72
19	2006	71.9
19	1959	71.9
21	1925	71.8
22	2007	71.4
22	1967	71.4
24	1956	71.3
25	1900	71.1
26	2021	71
26	1969	71
28	1927	70.6
29	2023	70.5
30	2000	70.4
30	1942	70.4
32	1973	69.8
33	2026	69.5
34	2017	69.4
35	1931	68.8
36	1937	68.5
37	1928	67.6
38	1982	67.5
39	1918	67.3
40	1983	67.1
41	1960	66.9
42	1915	66.8
43	1914	66.6
44	1923	65.4
45	1913	65.1
46	1998	64.9
47	1955	64.4
48	2016	64.3
48	1968	64.3
48	1957	64.3
48	1932	64.3
52	1995	64.1
53	1997	64
53	1962	64
53	1938	64
56	1970	63.5
57	1950	63.3
58	1952	63.1
59	2024	63
59	1979	63
59	1976	63
62	1963	62.9
62	1949	62.9
64	2001	62.8
65	1902	62.5
66	1972	62.4
66	1964	62.4
66	1943	62.4
69	1990	62
70	2012	61.8
70	1924	61.8
72	1933	61.6
72	1930	61.6
74	1936	61.5
75	1989	61.4
75	1988	61.4
77	2014	61.1
78	1920	61
78	1917	61
80	1916	60.6
81	1980	60.3
81	1977	60.3
83	1912	60.1
84	1940	60
85	1901	59.9
86	1899	59.8
87	1945	59.5
88	1996	59.3
88	1934	59.3
90	1946	59.1
91	1999	58
91	1921	58
93	2004	57.8
94	1966	57.4
95	1939	57.1
96	2015	57
96	1978	57
96	1965	57
99	2022	56.8
99	1992	56.8
101	2009	56.6
101	2008	56.6
103	2011	56.5
104	1929	55.8
105	1935	55.3
106	1993	55.1
107	1981	54.9
108	1961	54.3
109	2010	53
110	2020	52.4
111	1987	52.3
112	1975	52
112	1958	52
114	2003	50.8
115	1974	48

Every day as a table

Daily highs and lows in Carbondale, IL, 1 to 4 October 2026, with each date's record range and its 1991 to 2020 normal range.

Day	High, °F	Low, °F	Record high	Year	Record low	Year	Normal high	Normal low
1 October 2026	93	69	93	2019	32	1939	77.5	46
2 October 2026	72	59	95	2019	30	1958	77.5	49
3 October 2026	76	53	96	1922	27	1981	78	47.5
4 October 2026	82	52	94	1954	27	1981	78.5	49.5

The warmest, coldest and wettest on this date

The 20 warmest 4 October highs in Carbondale, IL since 1899.
Rank	Year	High, °F
1	1954	94
1	1922	94
3	1900	90
4	2007	89
4	2006	89
4	1959	89
4	1951	89
4	1938	89
4	1920	89
4	1903	89
11	1969	88
11	1967	88
13	2013	87
13	2005	87
13	2002	87
13	1983	87
13	1973	87
13	1953	87
13	1931	87
13	1916	87

The 20 coldest 4 October lows in Carbondale, IL since 1899.
Rank	Year	Low, °F
1	1981	27
2	1987	29
3	2010	30
4	1975	31
4	1974	31
6	2022	33
6	1968	33
6	1935	33
9	1999	34
10	1977	35
10	1961	35
12	2020	36
12	2014	36
12	1989	36
12	1970	36
16	1993	38
16	1988	38
16	1980	38
16	1963	38
20	2009	39

The 20 wettest 4 October days in Carbondale, IL since 1899.
Rank	Year	Precipitation, in
1	1910	4.42
2	1990	1.86
3	1932	0.96
4	1949	0.86
5	1983	0.84
6	1947	0.57
7	1926	0.51
8	1929	0.46
9	1982	0.39
10	1941	0.36
11	1959	0.33
12	1902	0.32
13	1911	0.26
14	2002	0.17
14	1937	0.17
16	1956	0.10
17	1991	0.09
18	1979	0.07
18	1925	0.07
18	1915	0.07

Every answer in words

Sunday 4 October 2026: a high of 82°F in Carbondale, IL, the warmest 4 October since 2025, tied 39th warmest of 118 (with 2023, 2021, 2016 and 1 other year).
Sunday 4 October 2026: a low of 52°F in Carbondale, IL, the warmest 4 October night since 2025, tied 50th warmest of 118 (with 2019, 1960, 1957 and 2 other years).
Forecast for Tuesday 6 October 2026: a high of 78°F in Carbondale, IL, which would be the warmest 6 October since 2024, tied 51st warmest of 116 (with 2020, 1999 and 1989) (National Weather Service forecast).
Forecast for Tuesday 6 October 2026: a low of 44°F in Carbondale, IL, which would be the coldest 6 October night since 2020, tied 39th coldest of 116 (with 1978, 1975, 1974 and 2 other years) (National Weather Service forecast).
Carbondale, IL on 6 October: record high 92°F (2007), record low 29°F (1980).
Carbondale, IL on 7 October: record high 93°F (2007 and 1939), record low 25°F (1952).
October 2026 so far averaged 69.5°F in Carbondale, IL, the warmest 1 to 4 October since 2025, 33rd warmest of 115.
October 2026 so far brought 0.53 in of precipitation in Carbondale, IL, the wettest 1 to 4 October since 2021 (2025 excluded: 1 of 4 days missing), 23rd wettest of 116.
2026 so far averaged 63°F in Carbondale, IL (2 days missing), the warmest 1 January to 4 October since 2012, 6th warmest of 111.
Carbondale, IL has had 48 days at 90°F or above in 2026 through 4 October (2 days missing), the most by that date since 2022, 58th most of 112.
Carbondale, IL has had 3 days at 100°F or above in 2026 through 4 October (2 days missing), the most by that date since 2012, tied 38th most of 112 (with 2002, 1987 and 1902).
Carbondale, IL has had 51 freezing nights (a low of 32°F or below) in 2026 through 4 October (2 days missing), the most by that date since 2025, 100th most of 114.

Nearby

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Jackson County, IL county average
Illinois every city and county

All-time records

About these figures

Daily records for Carbondale, IL run from 1898 to 4 October 2026, with 3274 days missing; current station CARBONDALE SOUTHERN ILLINOIS AP.

Our calculation from NOAA records for Carbondale, IL, 1898 to 2026. Preliminary until NOAA's final data.