Weather on October 17 at Gateway Arch
Gateway Arch National Park
Based on 52 years of data from St. Louis, MO
Planning Your Visit
October 17th in Gateway Arch National Park (via St. Louis, MO) typically brings mild fall weather, with average highs around 69°F and lows near 44°F — a 25°F daily swing. Over 52 years of records, the warmest October 17th was in 2016 (78°F average), while the coldest was 2001 (41°F) — a 37°F range across recorded history. Rain or other precipitation has occurred on about 27% of October 17th dates historically, with the wettest October 17th recording 4.55" 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 17th in Gateway Arch? Great weather for outdoor activities.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 85°F | 56°F | 0" | 0" |
| 2024 | 69°F | 30°F | 0" | 0" |
| 2023 | 69°F | 34°F | 0" | 0" |
| 2022 | 49°F | 37°F | 0" | 0" |
| 2021 | 70°F | 38°F | 0" | 0" |
| 2020 | 70°F | 39°F | 0" | 0" |
| 2019 | 63°F | 34°F | 0" | 0" |
| 2018 | 64°F | 37°F | 0" | 0" |
| 2017 | 70°F | 52°F | 0" | 0" |
| 2016 | 87°F | 70°F | 0" | 0" |
| 2015 | 64°F | 40°F | 0" | 0" |
| 2014 | 73°F | 55°F | 0" | -- |
| 2013 | 60°F | 47°F | 0.08" | 0" |
| 2012 | 82°F | 59°F | 0" | -- |
| 2011 | 85°F | 41°F | 0" | -- |
| 2010 | 78°F | 40°F | 0" | 0" |
| 2009 | 46°F | 41°F | 0" | 0" |
| 2008 | 60°F | 38°F | 0" | 0" |
| 2007 | 74°F | 48°F | 0" | 0" |
| 2006 | 55°F | 50°F | 4.55" | 0" |
| 2005 | 74°F | 42°F | 0" | 0" |
| 2004 | 59°F | 36°F | 0" | 0" |
| 2003 | 70°F | 45°F | 2.24" | 0" |
| 2002 | 56°F | 44°F | 0" | 0" |
| 2001 | 52°F | 30°F | 0" | 0" |
| 2000 | 61°F | 52°F | 3.73" | 0" |
| 1999 | 83°F | 49°F | 0.89" | 0" |
| 1998 | 80°F | 61°F | 1.4" | 0" |
| 1997 | 60°F | 36°F | 0" | 0" |
| 1996 | 81°F | 59°F | 0.05" | 0" |
| 1995 | 83°F | 50°F | 0" | 0" |
| 1994 | 75°F | 64°F | 0.13" | 0" |
| 1993 | 68°F | 55°F | 4.06" | 0" |
| 1992 | 53°F | 35°F | 0.41" | 0" |
| 1991 | 76°F | 52°F | 0" | 0" |
| 1990 | 79°F | 39°F | 0" | 0" |
| 1989 | 73°F | 43°F | 0.25" | 0" |
| 1988 | 85°F | 49°F | 0" | 0" |
| 1987 | 74°F | 32°F | 0.64" | 0" |
| 1986 | 64°F | 38°F | 0" | 0" |
| 1985 | 81°F | 53°F | 0" | 0" |
| 1982 | 69°F | 35°F | 0" | 0" |
| 1980 | 74°F | -- | 2.79" | 0" |
| 1979 | 76°F | 54°F | 0.23" | 0" |
| 1978 | 53°F | 30°F | 0" | 0" |
| 1977 | 57°F | 34°F | 0" | 0" |
| 1976 | 48°F | 36°F | 0" | 0" |
| 1975 | 67°F | 47°F | 0" | 0" |
| 1974 | 70°F | 42°F | 0" | 0" |
| 1973 | 63°F | 40°F | 0" | 0" |
| 1972 | 76°F | 45°F | 0" | 0" |
| 1971 | 79°F | 54°F | 0" | 0" |