Weather on October 16 at Gateway Arch
Gateway Arch National Park
Based on 52 years of data from St. Louis, MO
Planning Your Visit
October 16th in Gateway Arch National Park (via St. Louis, MO) typically brings pleasant fall weather, with average highs around 70°F and lows near 45°F — a 25°F daily swing. Over 52 years of records, the warmest October 16th was in 2016 (73°F average), while the coldest was 2018 (45°F) — a 28°F range across recorded history. Rain or other precipitation has occurred on about 25% of October 16th dates historically, with the wettest October 16th recording 1.78" of rain. The last decade has been 5.0°F cooler on this date compared to 20-30 years ago.
The last decade has been 5.0°F cooler on this date compared to 20-30 years ago.
Planning for October 16th 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 | 61°F | 30°F | 0" | 0" |
| 2023 | 64°F | 39°F | 0" | 0" |
| 2022 | 69°F | 37°F | 0" | 0" |
| 2021 | 63°F | 41°F | 0" | 0" |
| 2020 | 64°F | 28°F | 0" | 0" |
| 2019 | 54°F | 38°F | 0" | 0" |
| 2018 | 57°F | 34°F | 0" | 0" |
| 2017 | 64°F | 41°F | -- | 0" |
| 2016 | 81°F | 65°F | 0" | 0" |
| 2015 | 80°F | 48°F | 0" | 0" |
| 2014 | 60°F | 47°F | 0" | 0" |
| 2013 | 68°F | 47°F | 0.56" | 0" |
| 2012 | 71°F | 52°F | 0" | 0" |
| 2011 | 71°F | 47°F | 0" | -- |
| 2010 | 70°F | 37°F | 0" | 0" |
| 2009 | 49°F | 43°F | 0.03" | 0" |
| 2008 | 80°F | 47°F | 1.24" | 0" |
| 2007 | 71°F | 56°F | 0.28" | 0" |
| 2006 | 64°F | 38°F | 0.13" | 0" |
| 2005 | 74°F | 40°F | 0" | 0" |
| 2004 | 62°F | 42°F | 0" | 0" |
| 2003 | 72°F | 51°F | 0" | 0" |
| 2002 | 65°F | 39°F | 0" | 0" |
| 2001 | 60°F | 38°F | 1.78" | 0" |
| 2000 | 65°F | 57°F | 0.43" | 0" |
| 1999 | 85°F | 50°F | 0" | 0" |
| 1998 | 79°F | 55°F | 0" | 0" |
| 1997 | 64°F | 41°F | 0" | 0" |
| 1996 | 79°F | 56°F | 0" | 0" |
| 1995 | 69°F | 40°F | 0" | 0" |
| 1994 | 77°F | 55°F | 0" | 0" |
| 1993 | 71°F | 58°F | 0.08" | 0" |
| 1992 | 73°F | 49°F | 0" | 0" |
| 1991 | 67°F | 40°F | 0" | 0" |
| 1990 | 82°F | 59°F | 0.43" | 0" |
| 1989 | 85°F | 44°F | 0.51" | 0" |
| 1988 | 81°F | 57°F | 0.13" | 0" |
| 1987 | 79°F | 48°F | 0.25" | 0" |
| 1986 | 69°F | 42°F | 0" | 0" |
| 1985 | 78°F | 43°F | 0" | 0" |
| 1982 | 75°F | 44°F | 0" | 0" |
| 1980 | 72°F | -- | 0" | 0" |
| 1979 | 68°F | 49°F | 0.56" | 0" |
| 1978 | 59°F | 38°F | 0" | 0" |
| 1977 | 60°F | 38°F | 0" | 0" |
| 1976 | 61°F | 38°F | 0" | 0" |
| 1975 | 73°F | 39°F | 0" | 0" |
| 1974 | 59°F | 37°F | 0" | 0" |
| 1973 | 80°F | 49°F | 0" | 0" |
| 1972 | 65°F | 47°F | 0" | 0" |
| 1971 | 81°F | 54°F | 0" | 0" |