Weather on October 15 at Gateway Arch
Gateway Arch National Park
Based on 52 years of data from St. Louis, MO
Planning Your Visit
October 15th in Gateway Arch National Park (via St. Louis, MO) typically brings pleasant fall weather, with average highs around 70°F and lows near 46°F. Over 52 years of records, the warmest October 15th was in 1992 (77°F average), while the coldest was 2018 (44°F) — a 33°F range across recorded history. Rain or other precipitation has occurred on about 23% of October 15th dates historically, with the wettest October 15th recording 1.35" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for October 15th in Gateway Arch? Great weather for outdoor activities.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 85°F | 54°F | 0" | 0" |
| 2024 | 58°F | 36°F | 0" | 0" |
| 2023 | 61°F | 47°F | 0.05" | 0" |
| 2022 | 66°F | 34°F | 0" | 0" |
| 2021 | 66°F | 49°F | -- | 0" |
| 2020 | 69°F | 32°F | 0.03" | 0" |
| 2019 | 70°F | 46°F | 0" | 0" |
| 2018 | 52°F | 36°F | 0.05" | 0" |
| 2017 | 89°F | 55°F | -- | 0" |
| 2016 | 71°F | 56°F | 0" | 0" |
| 2015 | 74°F | 48°F | 0" | 0" |
| 2014 | 57°F | 52°F | 0.33" | 0" |
| 2013 | 68°F | 54°F | 0.28" | 0" |
| 2012 | 74°F | 49°F | 0.05" | 0" |
| 2011 | 72°F | 44°F | 0" | -- |
| 2010 | 72°F | 42°F | 0" | 0" |
| 2009 | 46°F | 44°F | 1.35" | 0" |
| 2008 | 71°F | 59°F | 0" | 0" |
| 2007 | 82°F | 53°F | 0" | 0" |
| 2006 | 62°F | 34°F | 0" | 0" |
| 2005 | 79°F | 51°F | 0" | 0" |
| 2004 | 49°F | 42°F | 1.3" | 0" |
| 2003 | 65°F | 46°F | 0" | 0" |
| 2002 | 63°F | 40°F | 0" | 0" |
| 2001 | 64°F | 42°F | 0" | 0" |
| 2000 | 78°F | 57°F | 0.43" | 0" |
| 1999 | 65°F | 43°F | 0" | 0" |
| 1998 | 73°F | 46°F | 0" | 0" |
| 1997 | 62°F | 34°F | 0" | 0" |
| 1996 | 83°F | 51°F | 0" | 0" |
| 1995 | 71°F | 41°F | 0" | 0" |
| 1994 | 67°F | 60°F | 0" | 0" |
| 1993 | 74°F | 47°F | 0" | 0" |
| 1992 | 86°F | 68°F | 0" | 0" |
| 1991 | 60°F | 32°F | 0" | 0" |
| 1990 | 70°F | 49°F | 0" | 0" |
| 1989 | 86°F | 58°F | 0" | 0" |
| 1988 | 77°F | 58°F | 0" | 0" |
| 1987 | 77°F | 55°F | 0" | 0" |
| 1986 | 64°F | 36°F | 0" | 0" |
| 1985 | 72°F | 40°F | 0" | 0" |
| 1982 | 64°F | 45°F | 0" | 0" |
| 1980 | 73°F | 40°F | 0" | 0" |
| 1979 | 63°F | 49°F | 0.36" | 0" |
| 1978 | 56°F | 34°F | 0" | 0" |
| 1977 | 73°F | 45°F | 0" | 0" |
| 1976 | 63°F | 43°F | 0" | 0" |
| 1975 | 87°F | 58°F | 0" | 0" |
| 1974 | 63°F | 45°F | 0.36" | 0" |
| 1973 | 80°F | 51°F | 0" | 0" |
| 1972 | 64°F | 38°F | 0" | 0" |
| 1971 | 79°F | 41°F | 0.05" | 0" |