Weather on September 26 at Mammoth Cave
Mammoth Cave National Park
Based on 55 years of data from Bowling Green, KY
Planning Your Visit
September 26th in Mammoth Cave National Park (via Bowling Green, KY) typically brings pleasant fall weather, with average highs around 78°F and lows near 56°F. Over 55 years of records, the warmest September 26th was in 1986 (79°F average), while the coldest was 2001 (50°F) — a 29°F range across recorded history. Rain or other precipitation has occurred on about 33% of September 26th dates historically, with the wettest September 26th recording 9.3" of rain. The last decade has been 2.7°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.7°F warmer on this date compared to 20-30 years ago.
Planning for September 26th in Mammoth Cave? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 83°F | 57°F | 0" | 0" |
| 2024 | 83°F | 60°F | 0.71" | 0" |
| 2023 | 89°F | 57°F | 0" | 0" |
| 2022 | 76°F | 50°F | 0" | -- |
| 2021 | 78°F | 47°F | 0" | 0" |
| 2020 | 77°F | 59°F | 0" | 0" |
| 2019 | 81°F | 61°F | 0.18" | 0" |
| 2018 | 78°F | 64°F | 0.71" | 0" |
| 2017 | 89°F | 61°F | 0" | 0" |
| 2016 | 72°F | 53°F | 0.79" | 0" |
| 2015 | 78°F | 62°F | 0" | 0" |
| 2014 | 85°F | 56°F | 0" | 0" |
| 2013 | 81°F | 55°F | 0" | 0" |
| 2012 | 85°F | 60°F | 0" | 0" |
| 2011 | 74°F | 52°F | 2.62" | 0" |
| 2010 | 74°F | 55°F | 0" | 0" |
| 2009 | 76°F | 59°F | 1.09" | 0" |
| 2008 | 83°F | 52°F | 0" | 0" |
| 2007 | 82°F | 68°F | 0.03" | 0" |
| 2006 | 76°F | 50°F | 0" | 0" |
| 2005 | 81°F | 64°F | 0.05" | 0" |
| 2004 | 80°F | 54°F | 0" | 0" |
| 2003 | 84°F | 54°F | 0" | 0" |
| 2002 | 69°F | 66°F | 9.3" | 0" |
| 2001 | 67°F | 34°F | 0" | 0" |
| 2000 | 64°F | 45°F | 0" | 0" |
| 1999 | 85°F | 51°F | 0" | 0" |
| 1998 | 91°F | 63°F | 0" | 0" |
| 1997 | 79°F | 50°F | -- | 0" |
| 1996 | 82°F | 58°F | -- | 0" |
| 1995 | 72°F | 51°F | 0.71" | 0" |
| 1994 | 70°F | 47°F | 1.22" | 0" |
| 1993 | 72°F | 57°F | 0" | 0" |
| 1992 | 69°F | 63°F | 1.12" | 0" |
| 1991 | 67°F | 45°F | 0" | 0" |
| 1990 | 86°F | 57°F | 0" | 0" |
| 1989 | 76°F | 52°F | 0" | 0" |
| 1988 | 78°F | 48°F | 0" | 0" |
| 1987 | 83°F | 47°F | 0" | 0" |
| 1986 | 90°F | 69°F | 0" | 0" |
| 1985 | 63°F | 50°F | 0.05" | 0" |
| 1984 | 66°F | 52°F | 0.1" | 0" |
| 1983 | 75°F | 55°F | 0" | 0" |
| 1982 | 68°F | 55°F | 0" | 0" |
| 1981 | 83°F | 56°F | 0" | 0" |
| 1980 | 66°F | 50°F | 0" | 0" |
| 1979 | 79°F | 51°F | 0" | 0" |
| 1978 | 81°F | 52°F | 0" | 0" |
| 1977 | 83°F | 62°F | 0.86" | 0" |
| 1976 | 80°F | 65°F | 1.6" | 0" |
| 1975 | 58°F | 47°F | 0" | 0" |
| 1974 | 71°F | 60°F | 0" | 0" |
| 1973 | 89°F | 64°F | 0" | 0" |
| 1972 | 85°F | 70°F | 0.69" | 0" |
| 1971 | 83°F | 67°F | 1.24" | 0" |