Milwaukee, WI: September

30 September 2026: September 2026 averaged 65.9°F in Milwaukee, WI, the warmest September since 2024, 28th warmest of 156.

September 2026

Mean temperature: 65.9°F; Warmest since 2024; 28th warmest of 156
Precipitation: 3.90 in; Wettest since 2023; 56th wettest of 156

A normal September in Milwaukee, WI (1991 to 2020): a mean temperature of 63.8°F, between 61.4°F and 67.6°F in eight years of ten and 2.85 in of precipitation, between 1.23 in and 4.97 in in eight years of ten.

The mean temperature of every September in Milwaukee, WI since 1871: 65.9°F in 2026; the highest is 69.6°F, in 1931.

Normal range, 61.4 to 67.6°F

Every year, ranked, as a table

Every September in Milwaukee, WI 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
2026	65.9	28	72.2	64	59.6	9	3.90	56
2025	65.1	38	73.3	42	57	37	1.61	120
2024	68	7	77.1	3	58.9	17	1.83	107
2023	68.2	6	75.2	18	61.2	3	4.40	37
2022	66.3	22	74.1	31	58.4	21	6.23	14
2021	68.3	5	77.1	3	59.5	11	1.68	116
2020	63.7	63	71.4	73	56	54	2.62	85
2019	68	7	75.1	19	60.8	6	7.00	8
2018	66.3	22	74.1	31	58.4	21	6.83	11
2017	67.2	15	76.4	6	57.9	26	0.85	141
2016	68.6	2	75.9	13	61.3	2	4.30	43
2015	67.6	10	76	11	59.2	14	4.44	36
2014	61.7	102	70.4	88	53.1	111	1.14	134
2013	64.5	48	73	47	56	54	1.54	122
2012	62.5	88	71.8	67	53.2	108	2.31	92
2011	61.7	102	69.1	116	54.2	92	2.91	74
2010	62.9	79	70.9	79	54.9	76	2.58	86
2009	63.9	55	71.6	70	56.1	53	1.57	121
2008	65.2	35	73.1	45	57.2	34	4.16	47
2007	65.2	35	74.9	21	55.6	63	1.93	102
2006	61.9	98	69	119	54.8	77	3.57	58
2005	68.6	2	77.5	2	59.6	9	4.17	46
2004	65.7	30	75.4	15	55.9	58	0.24	154
2003	62.9	79	71.3	74	54.4	85	1.65	118
2002	66.1	24	75.4	15	56.9	38	2.79	79
2001	61.2	113	68.8	121	53.5	103	4.76	31
2000	62.2	93	70.2	94	54.2	92	7.04	7
1999	63.4	67	73.4	40	53.4	105	4.16	47
1998	67	18	76	11	57.9	26	2.17	97
1997	61.4	109	69.7	104	53	115	2.91	74
1996	63.8	59	72.4	60	55.2	70	1.82	108
1995	61.1	118	69.8	103	52.4	120	1.24	131
1994	67.5	11	75.6	14	59.4	12	1.68	116
1993	60.6	128	68.1	133	53.1	111	3.91	55
1992	61.6	108	69.7	104	53.4	105	4.13	49
1991	63.2	73	71.3	74	55.1	71	4.34	39
1990	66	27	74.2	28	57.8	28	1.89	103
1989	60.2	132	69.3	112	51.1	135	3.25	67
1988	63.5	65	72.5	56	54.4	85	4.94	27
1987	63.3	71	71.5	72	55	74	2.22	94
1986	63.8	59	70.7	81	56.8	40	7.26	5
1985	64.3	50	72.4	60	56.2	51	3.44	62
1984	60.9	123	70.1	97	51.7	131	2.51	88
1983	62.9	79	72.7	53	53	115	2.79	79
1982	60.8	124	69.6	107	52	126	0.64	145
1981	59.1	141	66.5	149	51.7	131	5.47	20
1980	61.1	118	69.9	101	52.2	121	3.57	58
1979	64.7	46	74.8	23	54.5	83	0.02	156
1978	65.8	29	74.8	23	56.7	43	6.81	12
1977	61.8	100	68.6	124	55.1	71	4.11	50
1976	62.6	87	72.2	64	53	115	1.70	114
1975	58.5	146	66.7	147	50.3	146	1.00	137
1974	58	150	67.7	139	48.3	154	0.50	148
1973	63.9	55	71.6	70	56.2	51	4.50	35
1972	61.2	113	69.2	115	53.3	107	7.57	4
1971	64.9	42	74.3	26	55.5	64	1.30	129
1970	62	95	70.7	81	53.2	108	6.94	9
1969	62	95	70	99	54	94	2.18	96
1968	63.5	65	72.7	53	54.3	91	3.36	65
1967	60.8	124	70.9	79	50.7	141	1.69	115
1966	59.1	141	69	119	49.1	151	0.48	149
1965	61.7	102	69.4	110	54	94	6.85	10
1964	61.2	113	70.4	88	52	126	1.74	112
1963	61.2	113	70.4	88	52	126	1.78	110
1962	58	150	68.6	124	47.4	156	1.49	125
1961	64.8	45	75.1	19	54.4	85	9.41	2
1960	63.4	67	72.3	62	54.4	85	3.25	67
1959	64.7	46	73.9	34	55.4	65	2.31	92
1958	62.2	93	72.5	56	51.8	130	2.85	77
1957	59.5	137	69.5	109	49.5	150	0.88	140
1956	59.3	138	70.2	94	48.4	153	0.30	153
1955	63.9	55	74.3	26	53.5	103	2.36	90
1954	64.3	50	72.8	52	55.8	60	2.78	81
1953	63.3	71	74.6	25	52.1	124	1.65	118
1952	62.9	79	73.8	35	51.9	129	0.36	152
1951	59.7	135	68.8	121	50.6	144	2.75	83
1950	60.5	129	67.7	139	53.2	108	1.75	111
1949	58.6	144	68.3	129	48.8	152	1.88	104
1948	66.4	21	75.3	17	57.4	30	1.24	131
1947	63.9	55	73.2	43	54.6	81	6.03	16
1946	61.7	102	71.9	66	51.5	134	1.28	130
1945	61.9	98	69.7	104	54	94	6.27	13
1944	63.6	64	72.5	56	54.6	81	3.05	72
1943	58	150	68.1	133	48	155	0.37	151
1942	59.6	136	68.5	126	50.7	141	3.43	63
1941	64.5	48	73.8	35	55.3	69	9.87	1
1940	63.2	73	70.7	81	55.7	61	0.55	147
1939	67.5	11	76.7	5	58.3	23	1.53	123
1938	62.8	84	69.1	116	56.4	47	6.12	15
1937	63.8	59	72.5	56	55.1	71	1.14	134
1936	66.1	24	72.9	51	59.2	14	5.59	19
1935	63.8	59	71.2	77	56.5	45	1.12	136
1934	61.3	110	68.2	132	54.4	85	4.33	40
1933	68.5	4	76.1	9	60.9	5	2.57	87
1932	63.1	77	70.5	86	55.7	61	0.90	139
1931	69.6	1	78.1	1	61.1	4	3.15	70
1930	64.9	42	73	47	56.8	40	1.97	101
1929	62.3	91	69.9	101	54.7	78	3.15	70
1928	60.2	132	68.8	121	51.6	133	1.50	124
1927	65.7	30	72.7	53	58.8	18	4.94	27
1926	61.7	102	68.1	133	55.4	65	4.69	32
1925	67	18	73.6	37	60.4	7	4.79	30
1924	57.2	155	63.2	156	51.1	135	1.35	127
1923	61.8	100	67.6	141	56	54	5.22	23
1922	66.1	24	73.5	39	58.8	18	4.63	33
1921	67.2	15	74.2	28	60.1	8	7.26	5
1920	66.7	20	74.2	28	59.2	14	2.78	81
1919	65.5	32	73	47	58	25	5.36	22
1918	57.5	154	65.3	153	49.7	149	1.15	133
1917	60.4	130	67.1	145	53.6	101	4.08	52
1916	60.3	131	68.4	127	52.1	124	5.21	24
1915	64.2	52	71.2	77	57.3	33	4.93	29
1914	63.2	73	70.5	86	55.9	58	4.11	50
1913	62.8	84	69.1	116	56.4	47	2.05	98
1912	64.1	54	71.3	74	56.9	38	5.84	17
1911	63.4	67	70.3	92	56.4	47	4.31	41
1910	61.3	110	68.3	129	54.4	85	1.71	113
1909	61.7	102	68.3	129	55	74	3.39	64
1908	67.8	9	76.2	7	59.4	12	0.72	143
1907	61	121	68.1	133	53.8	99	5.39	21
1906	67.5	11	73.6	37	61.4	1	4.08	52
1905	65.2	35	73	47	57.4	30	0.76	142
1904	62.4	90	70.3	92	54.5	83	2.64	84
1903	62.3	91	70.7	81	53.9	97	5.02	26
1902	59	143	66.9	146	51	138	4.27	45
1901	62.9	79	70.4	88	55.4	65	1.86	105
1900	65	41	73.4	40	56.5	45	3.51	60
1899	61.1	118	69.3	112	52.9	119	3.04	73
1898	65.3	34	73.2	43	57.4	30	1.98	100
1897	67.3	14	76.1	9	58.5	20	1.48	126
1896	58.2	148	65.6	151	50.8	140	5.72	18
1895	65.4	33	74.9	21	56	54	1.82	108
1894	64.2	52	71.7	68	56.7	43	5.06	25
1893	62	95	70.1	97	53.8	99	3.24	69
1892	62.5	88	70.2	94	54.7	78	2.21	95
1891	67.2	15	76.2	7	58.3	23	0.18	155
1890	59.2	139	67.4	142	50.9	139	0.65	144
1889	59.8	134	67.3	143	52.2	121	3.45	61
1888	58	150	65.5	152	50.4	145	0.99	138
1887	60.7	127	67.8	138	53.6	101	4.36	38
1886	61.3	110	69.6	107	53	115	2.38	89
1885	61.2	113	69.3	112	53.1	111	3.30	66
1884	64.9	42	72.3	62	57.5	29	2.82	78
1883	57.2	155	64.3	154	50.2	147	2.32	91
1882	62.8	84	68.4	127	57.1	35	1.31	128
1881	65.1	38	73.1	45	57.1	35	4.28	44
1880	61	121	68.1	133	53.9	97	1.85	106
1879	58.2	148	65.8	150	50.7	141	2.00	99
1878	63.1	77	70.7	81	55.4	65	4.03	54
1877	63.2	73	71.7	68	54.7	78	0.48	149
1876	58.6	144	64.1	155	53.1	111	3.66	57
1875	58.5	146	66.7	147	50.2	147	4.31	41
1874	65.1	38	74	33	56.3	50	4.51	34
1873	60.8	124	69.4	110	52.2	121	2.89	76
1872	63.4	67	70	99	56.8	40	8.72	3
1871	59.2	139	67.3	143	51.1	135	0.57	146

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
1931	69.6
2016	68.6
2005	68.6
1933	68.5
2021	68.3
2023	68.2
2024	68
2019	68
1908	67.8
2015	67.6

Coldest
Year	Mean, °F
1924	57.2
1883	57.2
1918	57.5
1974	58
1962	58
1943	58
1888	58
1896	58.2
1879	58.2
1975	58.5
More years share the last value

Wettest
Year	Precipitation, in
1941	9.87
1961	9.41
1872	8.72
1972	7.57
1986	7.26
1921	7.26
2000	7.04
2019	7.00
1970	6.94
1965	6.85

Driest
Year	Precipitation, in
1979	0.02
1891	0.18
2004	0.24
1956	0.30
1952	0.36
1943	0.37
1966	0.48
1877	0.48
1974	0.50
1940	0.55

The hottest, coldest and wettest days

Hottest day: 90°F; 2 September 2026
Coldest night: 47°F; 27 September 2026
Wettest day: 1.49 in; 19 September 2026

Every month, season and year

Months

Seasons

Years

Milwaukee, WI the day's answers

All-time records

Every answer in words

September 2026 brought 3.90 in of precipitation in Milwaukee, WI, the wettest September since 2023, 56th wettest of 156.
The hottest day of September 2026 in Milwaukee, WI: 90°F on Wednesday 2 September 2026.
The coldest night of September 2026 in Milwaukee, WI: a low of 47°F on Sunday 27 September 2026.
The wettest day of September 2026 in Milwaukee, WI: 1.49 in on Saturday 19 September 2026.