Weather on September 25 at Gateway Arch
Gateway Arch National Park
Based on 53 years of data from St. Louis, MO
Planning Your Visit
September 25th in Gateway Arch National Park (via St. Louis, MO) typically brings pleasant fall weather, with average highs around 77°F and lows near 55°F. Over 53 years of records, the warmest September 25th was in 2007 (81°F average), while the coldest was 2001 (50°F) — a 31°F range across recorded history. Rain or other precipitation has occurred on about 19% of September 25th dates historically, with the wettest September 25th recording 2.69" of rain. The last decade has been 6.7°F warmer on this date compared to 20-30 years ago.
The last decade has been 6.7°F warmer on this date compared to 20-30 years ago.
Planning for September 25th in Gateway Arch? Great weather for outdoor activities.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 78°F | 56°F | 0" | 0" |
| 2024 | 79°F | 55°F | 0" | 0" |
| 2023 | 88°F | 61°F | 0" | 0" |
| 2022 | 79°F | 57°F | 0" | 0" |
| 2021 | 74°F | 48°F | 0.13" | 0" |
| 2020 | 80°F | 50°F | 0" | 0" |
| 2019 | 79°F | 61°F | 0" | 0" |
| 2018 | 85°F | 70°F | 0" | 0" |
| 2017 | 91°F | -- | 0" | 0" |
| 2016 | 91°F | 72°F | 0" | 0" |
| 2015 | 84°F | 59°F | 0" | 0" |
| 2014 | 79°F | 60°F | 0" | 0" |
| 2013 | 82°F | 66°F | 0" | 0" |
| 2012 | 73°F | 59°F | 0" | 0" |
| 2011 | 67°F | 45°F | 0" | -- |
| 2010 | 80°F | 52°F | 0" | 0" |
| 2009 | 72°F | 65°F | 0.28" | 0" |
| 2008 | 83°F | 58°F | 0" | 0" |
| 2007 | 89°F | 73°F | 0" | 0" |
| 2006 | 67°F | 46°F | 0" | 0" |
| 2005 | 87°F | 68°F | 0.76" | 0" |
| 2004 | 80°F | 58°F | 0" | 0" |
| 2003 | 89°F | 54°F | 0.05" | 0" |
| 2002 | 69°F | 46°F | 0" | 0" |
| 2001 | 61°F | 39°F | 0" | 0" |
| 2000 | 62°F | 48°F | 2.69" | 0" |
| 1999 | 82°F | 51°F | 0" | 0" |
| 1998 | 71°F | 63°F | 0" | 0" |
| 1997 | 71°F | 46°F | 0" | 0" |
| 1996 | 72°F | 46°F | 0" | 0" |
| 1995 | 74°F | 48°F | 0" | 0" |
| 1994 | 61°F | 50°F | 1.35" | 0" |
| 1993 | 75°F | 55°F | 1.52" | 0" |
| 1992 | 69°F | 60°F | 0" | 0" |
| 1991 | 70°F | 45°F | 0" | 0" |
| 1990 | 84°F | 53°F | 0" | 0" |
| 1989 | 72°F | 38°F | 0" | 0" |
| 1988 | 79°F | 46°F | 0" | 0" |
| 1987 | 80°F | 49°F | 0" | 0" |
| 1986 | 87°F | 72°F | 0" | 0" |
| 1985 | 63°F | 44°F | 0.38" | 0" |
| 1982 | 78°F | 54°F | 0" | 0" |
| 1981 | 79°F | 55°F | 0" | 0" |
| 1980 | 77°F | 59°F | 0.58" | 0" |
| 1979 | 81°F | 49°F | 0" | 0" |
| 1978 | 82°F | 58°F | 0" | 0" |
| 1977 | 80°F | 59°F | 0" | 0" |
| 1976 | 77°F | 51°F | 0.08" | 0" |
| 1975 | 56°F | 49°F | 0" | 0" |
| 1974 | 68°F | 38°F | 0" | 0" |
| 1973 | 86°F | 69°F | 0" | 0" |
| 1972 | 77°F | 71°F | 0" | 0" |
| 1971 | 70°F | -- | 0" | 0" |