Weather on October 20
Saint Louis, MO
55 Years of Data
About This Date
October 20th in Saint Louis, MO typically brings mild fall weather, with average highs around 67°F and lows near 43°F. Over 52 years of records, the warmest October 20th was in 1979 (70°F average), while the coldest was 1972 (35°F) — a 35°F range across recorded history. Rain or other precipitation has occurred on about 27% of October 20th dates historically, with the wettest October 20th recording 1.52" of rain. The last decade has been 1.5°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.5°F warmer on this date compared to 20-30 years ago.
Planning for October 20th in Saint Louis, MO? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 74° | 38° | 56° | — | — |
| 2024 | 77° | 36° | 56° | — | — |
| 2023 | 73° | 44° | 59° | — | — |
| 2022 | 73° | 26° | 50° | — | — |
| 2021 | 80° | 46° | 63° | — | — |
| 2020 | 60° | 46° | 53° | 1.27" | — |
| 2019 | 67° | 55° | 61° | — | — |
| 2018 | 67° | 37° | 52° | — | — |
| 2017 | 65° | 59° | 62° | — | — |
| 2016 | 64° | 50° | 57° | 1.52" | — |
| 2015 | 77° | 54° | 65° | — | — |
| 2014 | 69° | 55° | 62° | — | — |
| 2013 | 65° | 44° | 54° | — | — |
| 2012 | 54° | 47° | 50° | — | — |
| 2011 | 52° | 41° | 46° | 0.18" | — |
| 2010 | 67° | 39° | 53° | — | — |
| 2009 | 72° | 44° | 58° | — | — |
| 2008 | 67° | 40° | 53° | — | — |
| 2007 | 69° | 46° | 58° | — | — |
| 2006 | 66° | 32° | 49° | — | — |
| 2005 | 79° | 53° | 66° | 0.03" | — |
| 2004 | 53° | 51° | 52° | 0.03" | — |
| 2003 | 83° | 57° | 70° | — | — |
| 2002 | 55° | 39° | 47° | 0.03" | — |
| 2001 | 67° | 42° | 54° | — | — |
| 2000 | 76° | 44° | 60° | — | — |
| 1999 | 64° | 36° | 50° | — | — |
| 1998 | 66° | 42° | 54° | — | — |
| 1997 | 70° | 39° | 54° | — | — |
| 1996 | 61° | 34° | 47° | — | — |
| 1995 | 80° | 43° | 61° | 0.71" | — |
| 1994 | 75° | 46° | 61° | — | — |
| 1993 | 62° | 58° | 60° | 1.35" | — |
| 1992 | 70° | 40° | 55° | 1.02" | — |
| 1991 | 58° | 34° | 46° | — | — |
| 1990 | 72° | 46° | 59° | — | — |
| 1989 | 56° | 37° | 46° | — | — |
| 1988 | 52° | 45° | 48° | 0.71" | — |
| 1987 | 50° | 31° | 40° | — | — |
| 1986 | 78° | 48° | 63° | — | — |
| 1985 | 73° | 57° | 65° | 0.08" | — |
| 1982 | 75° | 23° | 49° | 1.02" | — |
| 1980 | — | 40° | — | — | — |
| 1979warmest | 78° | 63° | 70° | 0.03" | — |
| 1978 | 77° | 31° | 54° | — | — |
| 1977 | 64° | 33° | 49° | — | — |
| 1976 | 43° | 40° | 41° | 0.58" | — |
| 1975 | 62° | 38° | 50° | — | — |
| 1974 | 64° | 39° | 52° | — | — |
| 1973 | 74° | 45° | 59° | — | — |
| 1972coldest | 45° | 25° | 35° | — | — |
| 1971 | 76° | 50° | 63° | — | — |
Saint Louis, MO Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Saint Louis, MO Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Saint Louis, MO Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit Saint Louis, MO
Saint Louis, MO has no months that meet our "pleasant" threshold — every season has tradeoffs.