Weather on September 13 at Gateway Arch
Gateway Arch National Park
Based on 54 years of data from St. Louis, MO
Planning Your Visit
September 13th in Gateway Arch National Park (via St. Louis, MO) typically brings warm fall weather, with average highs around 83°F and lows near 60°F. Over 54 years of records, the warmest September 13th was in 1972 (85°F average), while the coldest was 1975 (48°F) — a 37°F range across recorded history. Rain or other precipitation has occurred on about 17% of September 13th dates historically, with the wettest September 13th recording 0.87" of rain. The last decade has been 1.5°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.5°F warmer on this date compared to 20-30 years ago.
Planning for September 13th in Gateway Arch? Stay hydrated and seek shade during peak afternoon hours.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2026 | 88°F | 67°F | 0" | -- |
| 2025 | 96°F | 64°F | 0" | 0" |
| 2024 | 79°F | 66°F | 0.1" | 0" |
| 2023 | 83°F | 48°F | 0" | 0" |
| 2022 | 82°F | 50°F | 0" | 0" |
| 2021 | 89°F | 60°F | 0" | 0" |
| 2020 | 78°F | 58°F | 0" | 0" |
| 2019 | 83°F | 62°F | 0" | 0" |
| 2018 | 87°F | 62°F | 0" | 0" |
| 2017 | 78°F | 64°F | 0.03" | 0" |
| 2016 | 82°F | 59°F | 0" | 0" |
| 2015 | 69°F | 49°F | 0" | 0" |
| 2014 | 58°F | 45°F | 0" | 0" |
| 2013 | 86°F | 60°F | 0" | 0" |
| 2012 | 85°F | 64°F | 0" | 0" |
| 2011 | 93°F | 63°F | 0" | -- |
| 2010 | 85°F | 54°F | 0" | 0" |
| 2009 | 80°F | 59°F | 0" | 0" |
| 2008 | 85°F | 72°F | 0" | 0" |
| 2007 | 73°F | 50°F | 0" | 0" |
| 2006 | 73°F | 60°F | 0.02" | 0" |
| 2005 | 93°F | 68°F | 0" | 0" |
| 2004 | 84°F | 63°F | 0" | 0" |
| 2003 | 78°F | 69°F | 0.46" | 0" |
| 2002 | 79°F | 55°F | 0" | 0" |
| 2001 | 83°F | 56°F | 0" | 0" |
| 2000 | 77°F | 54°F | 0" | 0" |
| 1999 | 85°F | 59°F | 0.51" | 0" |
| 1998 | 88°F | 62°F | 0" | 0" |
| 1997 | 78°F | 56°F | 0" | 0" |
| 1996 | 72°F | 53°F | 0" | 0" |
| 1995 | 87°F | 65°F | 0" | 0" |
| 1994 | 90°F | 61°F | 0" | 0" |
| 1993 | 85°F | 70°F | 0.01" | 0" |
| 1992 | 84°F | 54°F | 0" | 0" |
| 1991 | 93°F | 73°F | 0" | 0" |
| 1990 | 86°F | 64°F | 0" | 0" |
| 1989 | 75°F | 63°F | -- | 0" |
| 1988 | 87°F | 58°F | 0" | 0" |
| 1987 | 87°F | 65°F | 0" | 0" |
| 1986 | 82°F | 50°F | 0" | 0" |
| 1985 | 71°F | 47°F | 0" | 0" |
| 1982 | 88°F | 69°F | 0.03" | 0" |
| 1981 | 90°F | 66°F | 0" | 0" |
| 1980 | 94°F | 65°F | 0" | 0" |
| 1979 | 89°F | 62°F | 0" | 0" |
| 1978 | 85°F | 69°F | 0" | 0" |
| 1977 | 73°F | 60°F | 0.4" | 0" |
| 1976 | 83°F | 46°F | 0" | 0" |
| 1975 | 57°F | 40°F | 0" | 0" |
| 1974 | 85°F | 53°F | 0.87" | 0" |
| 1973 | 78°F | 50°F | 0" | 0" |
| 1972 | 96°F | 73°F | 0" | 0" |
| 1971 | 83°F | -- | 0" | 0" |