Weather on February 18 at Gateway Arch
Gateway Arch National Park
MOMidwest450 ft elevation
Avg High47°F
Avg Low27°F
Warmest201765°F
Coldest19939°F
Based on 52 years of data from St. Louis, MO
Planning Your Visit
February 18th in Gateway Arch National Park (via St. Louis, MO) typically brings chilly winter weather, with average highs around 47°F and lows near 27°F. Over 52 years of records, the warmest February 18th was in 2017 (65°F average), while the coldest was 1993 (9°F) — a 56°F range across recorded history. Precipitation has occurred on 19% of recorded February 18th dates, with snow falling 2% of the time. The last decade has been 2.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.2°F warmer on this date compared to 20-30 years ago.
Planning for February 18th in Gateway Arch? Bring layers as temperatures can vary throughout the day.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2026 | 73°F | 52°F | 0" | 0" |
| 2025 | 20°F | 7°F | 0.05" | -- |
| 2024 | 49°F | 21°F | 0" | 0" |
| 2023 | 54°F | 24°F | 0" | 0" |
| 2022 | 41°F | 15°F | 0" | 0" |
| 2021 | 25°F | 13°F | 0.03" | -- |
| 2020 | 53°F | 30°F | 0" | 0" |
| 2019 | 30°F | 26°F | 0" | 0" |
| 2018 | 53°F | 34°F | -- | -- |
| 2017 | 75°F | 55°F | 0" | 0" |
| 2016 | 49°F | 35°F | 0" | 0" |
| 2015 | 34°F | 13°F | 0.03" | 0.3" |
| 2014 | 48°F | 31°F | 0" | 0" |
| 2013 | 52°F | 38°F | 0" | 0" |
| 2012 | 57°F | 30°F | 0" | -- |
| 2011 | 73°F | 45°F | 0" | 0" |
| 2010 | 37°F | 21°F | 0" | 0" |
| 2009 | 54°F | 32°F | 0" | 0" |
| 2008 | 56°F | 31°F | 0" | 0" |
| 2007 | 33°F | 14°F | 0" | 0" |
| 2006 | 33°F | 5°F | 0" | 0" |
| 2005 | 44°F | 28°F | 0" | 0" |
| 2004 | 45°F | 28°F | 0" | 0" |
| 2003 | 34°F | 24°F | 0" | 0" |
| 2002 | 50°F | 28°F | 0" | 0" |
| 2001 | 28°F | 14°F | 0" | 0" |
| 2000 | 45°F | 29°F | 4.9" | 0" |
| 1999 | 46°F | 30°F | 0" | 0" |
| 1998 | 50°F | 41°F | 0.99" | 0" |
| 1997 | 58°F | 35°F | 0" | 0" |
| 1996 | 38°F | 21°F | 0" | 0" |
| 1995 | 58°F | 22°F | 0" | 0" |
| 1994 | 67°F | 39°F | 0" | 0" |
| 1993 | 19°F | -2°F | 0" | 0" |
| 1992 | 51°F | 44°F | 1.83" | 0" |
| 1991 | 70°F | 38°F | 0.03" | 0" |
| 1990 | 54°F | 25°F | 0" | 0" |
| 1989 | 49°F | 32°F | 0" | 0" |
| 1988 | 40°F | 30°F | 0.43" | 0" |
| 1987 | 41°F | 20°F | 0" | 0" |
| 1986 | 69°F | 35°F | 0.03" | 0" |
| 1985 | 50°F | 32°F | 0" | 0" |
| 1983 | 43°F | 34°F | 0" | 0" |
| 1980 | 32°F | 7°F | 0" | 0" |
| 1978 | 27°F | 9°F | 0" | 0" |
| 1977 | 49°F | 26°F | 0" | 0" |
| 1976 | 56°F | 42°F | 0" | 0" |
| 1975 | 40°F | 27°F | 0" | 0" |
| 1974 | 65°F | 30°F | 0.03" | 0" |
| 1973 | 29°F | 3°F | 0" | -- |
| 1972 | 49°F | 20°F | 0" | -- |
| 1971 | 72°F | 43°F | 0" | 0" |
February 18 at Nearby Parks
Holiday Weather at Gateway Arch
Official NPS WebsiteVisit nps.gov/jeff for park information, alerts, and reservations
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