Weather on October 31 at Gateway Arch
Gateway Arch National Park
Based on 52 years of data from St. Louis, MO
Planning Your Visit
October 31st in Gateway Arch National Park (via St. Louis, MO) typically brings mild fall weather, with average highs around 65°F and lows near 42°F. Over 52 years of records, the warmest October 31st was in 1974 (72°F average), while the coldest was 2019 (32°F) — a 40°F range across recorded history. Rain or other precipitation has occurred on about 38% of October 31st dates historically, with the wettest October 31st recording 2.46" of rain. The last decade has been 8.9°F cooler on this date compared to 20-30 years ago.
The last decade has been 8.9°F cooler on this date compared to 20-30 years ago.
Planning for October 31st in Gateway Arch? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 65°F | 38°F | 0" | -- |
| 2024 | 71°F | 47°F | 1.47" | 0" |
| 2023 | 44°F | 23°F | 0" | 0" |
| 2022 | 59°F | 45°F | 0" | 0" |
| 2021 | 57°F | 38°F | -- | -- |
| 2020 | 63°F | 37°F | 0" | -- |
| 2019 | 37°F | 26°F | 0" | -- |
| 2018 | 71°F | 49°F | 2.46" | 0" |
| 2017 | 53°F | 36°F | 0" | 0" |
| 2016 | 74°F | 53°F | 0" | 0" |
| 2015 | 58°F | 46°F | 0.41" | 0" |
| 2014 | 60°F | 40°F | 0" | 0" |
| 2013 | 72°F | 62°F | 1.75" | 0" |
| 2012 | 58°F | 36°F | 0" | 0" |
| 2011 | 63°F | 37°F | 0" | -- |
| 2010 | 75°F | 39°F | 0" | 0" |
| 2009 | 63°F | 41°F | 1.96" | 0" |
| 2008 | 74°F | 34°F | 0" | 0" |
| 2007 | 72°F | 33°F | 0" | 0" |
| 2006 | 74°F | 42°F | 0.13" | 0" |
| 2005 | 70°F | 43°F | 0.97" | 0" |
| 2004 | 71°F | 47°F | 0" | 0" |
| 2003 | 75°F | 66°F | 0" | 0" |
| 2002 | 47°F | 42°F | 0.05" | 0" |
| 2001 | 72°F | 40°F | 0" | 0" |
| 2000 | 74°F | 55°F | 0.18" | 0" |
| 1999 | 78°F | 55°F | 0" | 0" |
| 1998 | 71°F | 46°F | 0" | 0" |
| 1997 | 68°F | 46°F | 0" | 0" |
| 1996 | 60°F | 35°F | 0" | 0" |
| 1995 | 68°F | 46°F | 0.2" | 0" |
| 1994 | 66°F | 41°F | 0.79" | 0" |
| 1993 | 42°F | 29°F | 0" | 0" |
| 1992 | 58°F | 47°F | 0" | 0" |
| 1991 | 50°F | 33°F | 0.15" | 0" |
| 1990 | 79°F | 43°F | 0" | 0" |
| 1989 | 56°F | 28°F | 0.86" | 0" |
| 1988 | 60°F | 33°F | 0" | 0" |
| 1987 | 80°F | 55°F | 0" | 0" |
| 1986 | 73°F | 44°F | 0" | 0" |
| 1985 | 56°F | 48°F | 2.34" | 0" |
| 1982 | 70°F | 39°F | 0.28" | 0" |
| 1980 | -- | 29°F | 0" | 0" |
| 1979 | 69°F | 56°F | 0.05" | 0" |
| 1978 | 65°F | 33°F | 0" | 0" |
| 1977 | 67°F | 44°F | 0.86" | 0" |
| 1976 | 48°F | 42°F | 0.05" | 0" |
| 1975 | 62°F | 36°F | 0" | 0" |
| 1974 | 81°F | 64°F | 0" | 0" |
| 1973 | 63°F | 42°F | 1.78" | 0" |
| 1972 | 55°F | 46°F | 1.91" | 0" |
| 1971 | 73°F | 43°F | 0" | 0" |