Weather on January 18 at Gateway Arch
Gateway Arch National Park
Based on 53 years of data from St. Louis, MO
Planning Your Visit
January 18th in Gateway Arch National Park (via St. Louis, MO) typically brings chilly winter weather, with average highs around 40°F and lows near 21°F. Over 53 years of records, the warmest January 18th was in 1973 (54°F average), while the coldest was 1977 (-3°F) — a 57°F range across recorded history. Rain or other precipitation has occurred on about 23% of January 18th dates historically, with the wettest January 18th recording 2.29" of rain. The last decade has been 6.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 6.1°F warmer on this date compared to 20-30 years ago.
Planning for January 18th in Gateway Arch? Bring layers as temperatures can vary throughout the day.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2026 | 33°F | 10°F | 0" | -- |
| 2025 | 43°F | 24°F | 0" | 0" |
| 2024 | 42°F | 24°F | 0" | -- |
| 2023 | 43°F | 38°F | 2.29" | 0" |
| 2022 | 54°F | 28°F | 0" | 0" |
| 2021 | 44°F | 27°F | 0" | 0" |
| 2020 | 51°F | 25°F | 2.18" | 0" |
| 2019 | 38°F | 35°F | 0.46" | 0" |
| 2018 | 48°F | 22°F | 0" | -- |
| 2017 | 48°F | 36°F | 0" | 0" |
| 2016 | 17°F | 4°F | 0.03" | 0" |
| 2015 | 61°F | 36°F | 0" | 0" |
| 2014 | 29°F | 16°F | 0" | 0" |
| 2013 | 44°F | 25°F | 0" | 0" |
| 2012 | 45°F | 14°F | 0" | -- |
| 2011 | 42°F | 26°F | 0.15" | 0" |
| 2010 | 44°F | 31°F | 0" | 0" |
| 2009 | 47°F | 20°F | 0" | 0" |
| 2008 | 40°F | 15°F | 0" | 0" |
| 2007 | 34°F | 20°F | 0" | 0" |
| 2006 | 35°F | 25°F | 0" | 0" |
| 2005 | 22°F | 6°F | 0" | 0" |
| 2004 | 44°F | 26°F | 1.6" | 0" |
| 2003 | 23°F | 10°F | 0" | 0" |
| 2002 | 35°F | 19°F | 0" | 0" |
| 2001 | 35°F | 22°F | 0" | 0" |
| 2000 | 34°F | 30°F | 0.69" | 0" |
| 1999 | 47°F | 34°F | 0.81" | 0" |
| 1998 | 36°F | 26°F | 0" | 0" |
| 1997 | 21°F | 1°F | 0" | 0" |
| 1996 | 65°F | 11°F | 1.7" | 0" |
| 1995 | 44°F | 33°F | 0.38" | 0" |
| 1994 | 7°F | -8°F | 0" | 0" |
| 1993 | 24°F | 17°F | 0" | 0" |
| 1992 | 30°F | 17°F | 0" | 0" |
| 1991 | 44°F | 28°F | 0" | 0" |
| 1990 | 55°F | 28°F | 0" | 0" |
| 1989 | 59°F | 25°F | 0" | 0" |
| 1988 | 51°F | 31°F | 0.2" | 0" |
| 1986 | 57°F | 33°F | 0" | 0" |
| 1985 | 41°F | 17°F | 0" | 0" |
| 1983 | 41°F | 15°F | 0" | 0" |
| 1981 | 43°F | 11°F | 0" | 0" |
| 1980 | 52°F | 23°F | 0" | 0" |
| 1979 | 40°F | 14°F | 0" | 0" |
| 1978 | 23°F | 6°F | 0" | 0" |
| 1977 | 12°F | -19°F | -- | 0" |
| 1976 | 22°F | 3°F | 0" | -- |
| 1975 | 51°F | 26°F | 0.53" | 0" |
| 1974 | 55°F | 28°F | -- | -- |
| 1973 | 65°F | 43°F | 0" | -- |
| 1972 | 50°F | 33°F | 0" | -- |
| 1971 | 27°F | 21°F | 0" | -- |