Weather on August 23
Saint Louis, MO
55 Years of Data
Avg High
87°F
Avg Low
65°F
Warmest
2023
87°F avg
Coldest
2009
64°F avg
About This Date
August 23rd in Saint Louis, MO typically brings warm summer weather, with average highs around 87°F and lows near 65°F. Over 52 years of records, the warmest August 23rd was in 2023 (87°F average), while the coldest was 2009 (64°F) — a 23°F range across recorded history. Rain or other precipitation has occurred on about 15% of August 23rd dates historically, with the wettest August 23rd recording 3.02" of rain. The last decade has been 3.5°F cooler on this date compared to 20-30 years ago.
The last decade has been 3.5°F cooler on this date compared to 20-30 years ago.
Planning for August 23rd in Saint Louis, MO? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 86° | 61° | 73° | — | — |
| 2024 | 90° | 53° | 71° | — | — |
| 2023warmest | 98° | 76° | 87° | — | — |
| 2022 | 87° | 60° | 74° | — | — |
| 2021 | 95° | 68° | 82° | 2.9" | — |
| 2020 | 92° | 65° | 78° | — | — |
| 2019 | 82° | 67° | 74° | — | — |
| 2018 | 79° | 54° | 66° | — | — |
| 2017 | 81° | 56° | 68° | — | — |
| 2016 | 83° | 65° | 74° | — | — |
| 2015 | 80° | 61° | 70° | — | — |
| 2014 | 93° | 78° | 86° | — | — |
| 2013 | 92° | 74° | 83° | — | — |
| 2012 | 94° | 70° | 82° | — | — |
| 2011 | 85° | 71° | 78° | 0.1" | — |
| 2010 | 91° | 65° | 78° | — | — |
| 2009coldest | 75° | 54° | 64° | — | — |
| 2008 | 85° | 69° | 77° | — | — |
| 2007 | 98° | 73° | 86° | — | — |
| 2006 | 85° | 61° | 73° | — | — |
| 2005 | 87° | 66° | 77° | 0.25" | — |
| 2004 | 84° | 62° | 73° | — | — |
| 2003 | 92° | 67° | 79° | — | — |
| 2002 | 93° | 75° | 84° | — | — |
| 2001 | 96° | 72° | 84° | — | — |
| 2000 | 90° | 74° | 82° | — | — |
| 1999 | 86° | 66° | 76° | — | — |
| 1998 | 89° | 71° | 80° | — | — |
| 1997 | 78° | 55° | 67° | — | — |
| 1996 | 90° | 70° | 80° | 0.25" | — |
| 1995 | 87° | 63° | 75° | — | — |
| 1994 | 84° | 60° | 72° | — | — |
| 1993 | 93° | 70° | 81° | — | — |
| 1992 | 87° | 66° | 77° | — | — |
| 1991 | 93° | 67° | 80° | — | — |
| 1990 | 85° | 69° | 77° | — | — |
| 1989 | 93° | 67° | 80° | 0.08" | — |
| 1988 | 89° | 60° | 75° | 3.02" | — |
| 1987 | 74° | 60° | 67° | — | — |
| 1986 | 79° | 59° | 69° | — | — |
| 1985 | 72° | 61° | 66° | 1.4" | — |
| 1981 | 80° | 65° | 72° | — | — |
| 1980 | 80° | — | — | — | — |
| 1979 | 92° | 60° | 76° | — | — |
| 1978 | 92° | 57° | 74° | — | — |
| 1977 | 85° | 66° | 75° | — | — |
| 1976 | 92° | 69° | 80° | — | — |
| 1975 | 94° | 73° | 83° | — | — |
| 1974 | 90° | 64° | 77° | — | — |
| 1973 | 81° | 56° | 68° | — | — |
| 1972 | 83° | 71° | 77° | 0.58" | — |
| 1971 | 83° | 64° | 73° | — | — |
52 years of data from ST LOUIS ST LOUIS UNIV