St Louis, MO: August

31 August 2026: August 2026 averaged 79.7°F in St Louis, MO, the warmest August since 2022, tied 33rd warmest of 153 (with 2022, 2018, 1991 and 2 other years).

August 2026

Mean temperature: 79.7°F; Warmest since 2022; 33rd warmest of 153
Precipitation: 3.64 in; Wettest since 2022; 45th wettest of 147

A normal August in St Louis, MO (1991 to 2020): a mean temperature of 79.6°F, between 76°F and 81.7°F in eight years of ten and 3.54 in of precipitation, between 1.53 in and 5.13 in in eight years of ten.

The mean temperature of every August in St Louis, MO since 1874: 79.7°F in 2026; the highest is 84.9°F, in 1947.

Normal range, 76 to 81.7°F

Every year, ranked, as a table

Every August in St Louis, MO from 1874 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	79.7	33	88.6	46	70.7	29	3.64	45
2025	77.7	77	87.2	73	68.2	81	1.48	120
2024	79.6	39	88.9	39	70.3	35	1.38	121
2023	79.5	43	88.1	57	70.9	27	3.60	48
2022	79.7	33	88.7	43	70.7	29	5.78	11
2021	81.1	16	90.7	21	71.6	18	4.85	23
2020	77.5	81	86.6	86	68.5	74	4.71	27
2019	78.3	62	86.8	81	69.8	47	6.33	8
2018	79.7	33	88.7	43	70.7	29	4.66	29
2017	75.7	120	85.2	116	66.2	121	3.30	58
2016	80.7	21	88.9	39	72.5	12	5.77	12
2015	77.8	74	86.7	85	68.8	69	6.67	5
2014	80.3	24	89	38	71.6	18	5.06	20
2013	78.7	57	87.5	63	69.8	47	1.19	128
2012	79.6	39	90.9	19	68.3	78	4.00	36
2011	81.6	13	91.4	15	71.8	17	1.04	130
2010	82.2	12	91.8	14	72.6	11	3.62	47
2009	76.4	103	85.4	114	67.4	94	2.48	83
2008	76.7	95	85.9	107	67.5	91	1.59	113
2007	84.4	3	94.9	4	73.9	3	1.57	115
2006	80	27	89.2	35	70.9	27	2.27	92
2005	80	27	88.5	48	71.4	23	3.87	38
2004	73.6	146	82.9	145	64.3	140	4.10	35
2003	80.8	19	90	26	71.6	18	2.54	81
2002	80	27	88.9	39	71	25	4.12	34
2001	79.6	39	89.1	37	70.1	40	1.99	103
2000	80.3	24	89.2	35	71.5	21	3.64	45
1999	76.5	101	86.4	96	66.6	110	1.95	105
1998	79.1	49	87.9	59	70.3	35	2.35	88
1997	76	116	84.6	126	67.4	94	3.36	54
1996	77.6	78	87	77	68.2	81	1.57	115
1995	83.9	5	92.9	7	74.9	2	4.52	31
1994	76.6	98	86.5	89	66.6	110	3.76	39
1993	80.4	23	88.8	42	71.9	16	4.78	25
1992	73.4	147	82.5	148	64.3	140	3.45	52
1991	79.7	33	89.9	31	69.5	53	0.98	132
1990	77.9	70	86.3	99	69.4	56	2.84	65
1989	77.8	74	86.6	86	69	65	3.00	63
1988	82.7	10	92.4	10	72.9	9	2.31	90
1987	78.9	54	88.3	52	69.5	53	5.56	13
1986	74	145	84.6	126	63.3	149	2.22	96
1985	74.7	137	83	143	66.4	118	3.66	44
1984	80.6	22	91.1	17	70.2	39	0.64	142
1983	84.1	4	94.5	5	73.8	4	2.24	94
1982	75.2	130	83.8	135	66.5	114	5.27	17
1981	76.1	112	84.7	124	67.5	91	3.31	57
1980	83.5	8	93.6	6	73.4	7	2.72	72
1979	78.3	62	87.6	62	69.1	63	2.26	93
1978	76.4	103	87.5	63	65.3	131	0.76	137
1977	76.4	103	85.5	112	67.2	103	5.34	16
1976	74.3	143	85.7	110	62.8	152	1.27	126
1975	77.9	70	87.5	63	68.3	78	5.44	14
1974	74.5	141	84.8	122	64.1	143	5.05	21
1973	76.9	92	87.2	73	66.6	110	2.46	84
1972	76.3	108	87	77	65.6	129	2.69	73
1971	75.7	120	87.2	73	64.2	142	0.08	147
1970	76.3	108	85.1	117	67.5	91	6.44	7
1969	77	90	88.4	49	65.5	130	0.52	145
1968	77.5	81	86.8	81	68.1	84	1.60	112
1967	72.4	150	83.3	140	61.5	153	1.36	123
1966	74.2	144	84.9	120	63.5	148	3.72	41
1965	75.7	120	86.3	99	65.2	133	3.59	49
1964	76.5	101	88	58	65	136	2.39	87
1963	74.9	135	85.8	108	64	145	2.55	80
1962	75.6	124	86.8	81	64.4	139	2.29	91
1961	75.4	126	85.8	108	65	136	1.88	107
1960	79.1	49	88.4	49	69.8	47	0.98	132
1959	80.8	19	90	26	71.5	21	2.13	99
1958	77.4	86	86.9	80	68	86	3.32	56
1957	79.2	46	89.3	34	69.2	59	0.61	143
1956	79.2	46	90	26	68.5	74	1.53	118
1955	80.1	26	91.1	17	69.2	59	2.33	89
1954	80	27	90	26	69.9	44	4.56	30
1953	78.3	62	90.1	24	66.5	114	0.86	135
1952	76.7	95	87.2	73	66.2	121	3.13	61
1951	76.6	98	86.5	89	66.7	107	2.78	67
1950	72.3	151	81.5	149	63.1	150	3.72	41
1949	76.7	95	86.8	81	66.5	114	2.49	82
1948	78	69	88.3	52	67.6	90	2.08	101
1947	84.9	1	96.1	2	73.7	5	0.55	144
1946	72.7	148	81.5	149	63.9	146	14.78	1
1945	76.9	92	87.5	63	66.3	120	3.58	50
1944	77	90	86.5	89	67.4	94	3.25	59
1943	79.9	31	90.2	23	69.5	53	1.35	124
1942	75.2	130	84.7	124	65.7	128	3.75	40
1941	79.7	33	92	12	67.4	94	2.17	98
1940	77.1	87	87.4	68	66.7	107	2.83	66
1939	75.2	130	85.1	117	65.2	133	7.62	4
1938	81.2	15	92	12	70.3	35	1.04	130
1937	81.3	14	92.8	8	69.8	47	1.38	121
1936	84.6	2	96.4	1	72.9	9
1935	77.5	81	86.6	86	68.4	76
1934	78.9	54	89.5	33	68.3	78
1933	76.1	112	87.7	60	64.5	138
1932	77.1	87	87.7	60	66.5	114
1931	76.1	112	87	77	65.1	135	3.25	59
1930	79	53	90.9	19	67.1	105
1929	76.3	108	85.4	114	67.3	101	3.40	53
1928	77.6	78	86.1	106	69.1	63	4.83	24
1927	72.2	152	80.4	152	63.9	146	2.60	78
1926	79.5	43	88.4	49	70.5	33	1.83	108
1925	78.3	62	87.4	68	69.2	59	2.75	69
1924	78.2	66	87.3	72	69	65	3.90	37
1923	77.9	70	86.5	89	69.3	57	6.19	9
1922	79.1	49	88.2	55	70	42	1.79	109
1921	77.5	81	86.4	96	68.6	72	2.75	69
1920	75.1	134	83.6	137	66.6	110	4.16	33
1919	77.1	87	86.5	89	67.7	88	3.03	62
1918	82.5	11	91.4	15	73.7	5	5.26	18
1917	75.3	128	83.4	138	67.2	103	1.99	103
1916	78.7	57	87.4	68	70	42	10.69	3
1915	70.4	153	77.9	153	62.9	151	11.43	2
1914	78.9	54	88.2	55	69.6	52	5.42	15
1913	83	9	92.7	9	73.3	8	1.59	113
1912	76.2	111	84.4	130	68	86	2.65	75
1911	75.9	117	84	134	67.7	88	3.51	51
1910	75.2	130	83.1	142	67.3	101	1.90	106
1909	81.1	16	90.1	24	72.1	15	0.66	139
1908	77.5	81	86.3	99	68.7	71	1.55	117
1907	76.6	98	84.5	128	68.6	72	4.36	32
1906	78.1	67	86.3	99	69.9	44	3.72	41
1905	77.6	78	86.2	104	68.9	68	2.58	79
1904	74.4	142	82.8	146	66.1	125	2.62	76
1903	76.4	103	84.4	130	68.4	76	5.97	10
1902	76.4	103	84.5	128	68.2	81	5.20	19
1901	79.9	31	90	26	69.9	44	0.76	137
1900	83.8	6	92.3	11	75.4	1	1.30	125
1899	81.1	16	89.7	32	72.5	12	2.77	68
1898	78.4	60	86.5	89	70.3	35	0.87	134
1897	76.8	94	86.2	104	67.4	94	0.66	139
1896	79.4	45	88.7	43	70.1	40	2.12	100
1895	77.9	70	86.5	89	69.3	57	2.08	101
1894	78.7	57	88.3	52	69	65	1.66	111
1893	76.1	112	85.5	112	66.7	107	0.65	141
1892	77.8	74	86.3	99	69.2	59	1.75	110
1891	74.8	136	83.4	138	66.2	121	2.75	69
1890	74.7	137	83	143	66.4	118	2.43	86
1889	75.4	126	84.8	122	66	127	0.85	136
1888	74.7	137	82.7	147	66.8	106	6.66	6
1887	79.1	49	87.5	63	70.6	32	1.14	129
1886	79.6	39	88.6	46	70.5	33	2.44	85
1885	75.9	117	83.7	136	68.1	84	2.96	64
1884	75.3	128	83.2	141	67.4	94	1.21	127
1883	74.7	137	84.1	133	65.3	131	3.34	55
1882	75.5	125	84.9	120	66.1	125	2.20	97
1881	83.7	7	95.3	3	72.2	14	0.31	146
1880	79.7	33	90.5	22	68.8	69	1.53	118
1879	75.7	120	85.1	117	66.2	121	2.23	95
1878	79.2	46	87.4	68	71	25	4.75	26
1877	75.9	117	84.4	130	67.4	94	2.61	77
1876	78.4	60	85.6	111	71.2	24	5.03	22
1875	72.5	149	81	151	64.1	143	2.66	74
1874	78.1	67	86.4	96	69.8	47	4.70	28

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
1947	84.9
1936	84.6
2007	84.4
1983	84.1
1995	83.9
1900	83.8
1881	83.7
1980	83.5
1913	83
1988	82.7

Coldest
Year	Mean, °F
1915	70.4
1927	72.2
1950	72.3
1967	72.4
1875	72.5
1946	72.7
1992	73.4
2004	73.6
1986	74
1966	74.2

Wettest
Year	Precipitation, in
1946	14.78
1915	11.43
1916	10.69
1939	7.62
2015	6.67
1888	6.66
1970	6.44
2019	6.33
1923	6.19
1903	5.97

Driest
Year	Precipitation, in
1971	0.08
1881	0.31
1969	0.52
1947	0.55
1957	0.61
1984	0.64
1893	0.65
1909	0.66
1897	0.66
1978	0.76
More years share the last value

The hottest, coldest and wettest days

Hottest day: 99°F; 31 August 2026
Coldest night: 60°F; 24 August 2026
Wettest day: 1.57 in; 6 August 2026

Every month, season and year

Months

Seasons

Years

St Louis, MO the day's answers

All-time records

Every answer in words

August 2026 brought 3.64 in of precipitation in St Louis, MO, the wettest August since 2022, tied 45th wettest of 147 (with 2000).
The hottest day of August 2026 in St Louis, MO: 99°F on Monday 31 August 2026.
The coldest night of August 2026 in St Louis, MO: a low of 60°F on Monday 24 August 2026.
The wettest day of August 2026 in St Louis, MO: 1.57 in on Thursday 6 August 2026.