Weather on June 18
Saint Louis, MO
55 Years of Data
Avg High
87°F
Avg Low
67°F
Warmest
2018
90°F avg
Coldest
1999
61°F avg
About This Date
June 18th in Saint Louis, MO typically brings warm summer weather, with average highs around 87°F and lows near 67°F. Over 53 years of records, the warmest June 18th was in 2018 (90°F average), while the coldest was 1999 (61°F) — a 29°F range across recorded history. Rain or other precipitation has occurred on about 25% of June 18th dates historically, with the wettest June 18th recording 7.82" of rain. The last decade has been 6.6°F warmer on this date compared to 20-30 years ago.
The last decade has been 6.6°F warmer on this date compared to 20-30 years ago.
Planning for June 18th in Saint Louis, MO? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.9°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 88° | 69° | 78° | 0.1" | — |
| 2024 | 88° | 73° | 80° | — | — |
| 2023 | 86° | 67° | 76° | 7.82" | — |
| 2022 | 87° | 60° | 74° | — | — |
| 2021 | 99° | 79° | 89° | — | — |
| 2020 | 90° | 59° | 74° | — | — |
| 2019 | 85° | 70° | 77° | — | — |
| 2018warmest | 95° | 84° | 90° | — | — |
| 2017 | 88° | 69° | 78° | — | — |
| 2016 | 85° | 71° | 78° | — | — |
| 2015 | 79° | 72° | 75° | 0.71" | — |
| 2014 | 91° | 76° | 83° | — | — |
| 2013 | 87° | 79° | 83° | 5.84" | — |
| 2012 | 89° | 75° | 82° | — | — |
| 2011 | 81° | 67° | 74° | 4.98" | — |
| 2010 | 85° | 71° | 78° | 0.3" | — |
| 2009 | 91° | 75° | 83° | — | — |
| 2008 | 79° | 55° | 67° | — | — |
| 2007 | 93° | 68° | 81° | — | — |
| 2006 | 89° | 69° | 79° | 1.24" | — |
| 2005 | 81° | 56° | 68° | — | — |
| 2004 | 88° | 69° | 78° | — | — |
| 2003 | 87° | 67° | 77° | — | — |
| 2002 | 80° | 62° | 71° | — | — |
| 2001 | 92° | 68° | 80° | — | — |
| 2000 | 68° | 62° | 65° | 0.51" | — |
| 1999coldest | 72° | 51° | 61° | — | — |
| 1998 | 88° | 73° | 80° | — | — |
| 1997 | 78° | 63° | 70° | 0.53" | — |
| 1996 | 87° | 69° | 78° | — | — |
| 1995 | 88° | 64° | 76° | — | — |
| 1994 | 94° | 71° | 82° | — | — |
| 1993 | 91° | 68° | 80° | — | — |
| 1992 | 89° | 69° | 79° | — | — |
| 1991 | 85° | 66° | 75° | — | — |
| 1990 | 92° | 70° | 81° | 0.2" | — |
| 1989 | 85° | 59° | 72° | 0.18" | — |
| 1988 | 91° | 56° | 73° | — | — |
| 1987 | 90° | 67° | 78° | 0.05" | — |
| 1986 | 86° | 62° | 74° | — | — |
| 1985 | 78° | 56° | 67° | — | — |
| 1984 | 93° | 71° | 82° | — | — |
| 1981 | 84° | 56° | 70° | — | — |
| 1980 | 87° | 59° | 73° | — | — |
| 1979 | 84° | 67° | 75° | — | — |
| 1978 | 93° | 71° | 82° | 2.08" | — |
| 1977 | — | 67° | — | — | — |
| 1976 | 88° | 68° | 78° | — | — |
| 1975 | 84° | 69° | 77° | — | — |
| 1974 | 76° | 56° | 66° | — | — |
| 1973 | 89° | 68° | 79° | — | — |
| 1972 | 89° | 64° | 77° | — | — |
| 1971 | 87° | 62° | 75° | — | — |
53 years of data from ST LOUIS ST LOUIS UNIV