Weather on September 2
Saint Louis, MO
55 Years of Data
Avg High
85°F
Avg Low
64°F
Warmest
2011
86°F avg
Coldest
2009
61°F avg
About This Date
September 2nd in Saint Louis, MO typically brings warm fall weather, with average highs around 85°F and lows near 64°F. Over 53 years of records, the warmest September 2nd was in 2011 (86°F average), while the coldest was 2009 (61°F) — a 25°F range across recorded history. Rain or other precipitation has occurred on about 30% of September 2nd dates historically, with the wettest September 2nd recording 7.52" of rain. The last decade has been 1.6°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.6°F cooler on this date compared to 20-30 years ago.
Planning for September 2nd in Saint Louis, MO? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 84° | 57° | 71° | 0.08" | — |
| 2024 | 83° | 57° | 70° | — | — |
| 2023 | 91° | 55° | 73° | — | — |
| 2022 | 80° | 65° | 72° | 0.33" | — |
| 2021 | 81° | 56° | 68° | — | — |
| 2020 | 79° | 67° | 73° | — | — |
| 2019 | 87° | 64° | 76° | — | — |
| 2018 | 91° | 71° | 81° | — | — |
| 2017 | 73° | — | — | — | — |
| 2016 | 80° | 62° | 71° | — | — |
| 2015 | 91° | 73° | 82° | — | — |
| 2014 | 83° | 69° | 76° | 4.5" | — |
| 2013 | 93° | 72° | 82° | — | — |
| 2012 | 81° | 73° | 77° | 1.4" | — |
| 2011warmest | 103° | 69° | 86° | — | — |
| 2010 | 77° | 71° | 74° | 2.44" | — |
| 2009coldest | 73° | 49° | 61° | — | — |
| 2008 | 94° | 73° | 83° | — | — |
| 2007 | 85° | 56° | 70° | — | — |
| 2006 | 77° | 61° | 69° | 0.05" | — |
| 2005 | 85° | 58° | 71° | — | — |
| 2004 | 86° | 60° | 73° | — | — |
| 2003 | 73° | 63° | 68° | 7.52" | — |
| 2002 | 91° | 69° | 80° | — | — |
| 2001 | 82° | 60° | 71° | — | — |
| 2000 | 92° | 70° | 81° | — | — |
| 1999 | 84° | 70° | 77° | — | — |
| 1998 | 78° | 64° | 71° | 0.03" | — |
| 1997 | 90° | 71° | 80° | — | — |
| 1996 | 83° | 61° | 72° | — | — |
| 1995 | 81° | 55° | 68° | — | — |
| 1994 | 73° | 51° | 62° | — | — |
| 1993 | 89° | 70° | 79° | — | — |
| 1992 | 81° | 67° | 74° | 0.76" | — |
| 1991 | 88° | 70° | 79° | 5.49" | — |
| 1990 | 96° | 70° | 83° | — | — |
| 1989 | 83° | 56° | 69° | — | — |
| 1988 | 82° | 64° | 73° | 0.08" | — |
| 1987 | 81° | 56° | 68° | — | — |
| 1986 | 84° | 61° | 72° | — | — |
| 1985 | 92° | 65° | 78° | — | — |
| 1982 | 84° | 66° | 75° | — | — |
| 1981 | 79° | 63° | 71° | 2.84" | — |
| 1980 | 90° | 66° | 78° | 5.33" | — |
| 1979 | 88° | 64° | 76° | 0.3" | — |
| 1978 | 83° | 54° | 68° | — | — |
| 1977 | 93° | 70° | 81° | — | — |
| 1976 | 88° | 58° | 73° | — | — |
| 1975 | 93° | 69° | 81° | — | — |
| 1974 | — | 60° | — | 0.03" | — |
| 1973 | 92° | 71° | 81° | — | — |
| 1972 | 77° | 64° | 71° | 2.84" | — |
| 1971 | 83° | — | — | — | — |
53 years of data from ST LOUIS ST LOUIS UNIV