Weather on September 26 at Indiana Dunes
Indiana Dunes National Park
Based on 55 years of data from Gary, IN
Planning Your Visit
September 26th in Indiana Dunes National Park (via Gary, IN) typically brings pleasant fall weather, with average highs around 73°F and lows near 52°F. Over 55 years of records, the warmest September 26th was in 1998 (81°F average), while the coldest was 2000 (45°F) — a 36°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 5.72" of rain. The last decade has been 8.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 8.0°F warmer on this date compared to 20-30 years ago.
Planning for September 26th in Indiana Dunes? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 73°F | 55°F | 0.03" | 0" |
| 2024 | 71°F | 52°F | 0" | 0" |
| 2023 | 74°F | 62°F | 0" | 0" |
| 2022 | 68°F | 54°F | -- | 0" |
| 2021 | 81°F | 53°F | -- | -- |
| 2020 | 75°F | 61°F | -- | -- |
| 2019 | 80°F | 60°F | 0" | 0" |
| 2018 | 83°F | 54°F | 1.52" | -- |
| 2017 | 90°F | 65°F | 0" | 0" |
| 2016 | 85°F | 59°F | 0.89" | 0" |
| 2015 | 73°F | 58°F | 0" | 0" |
| 2014 | 75°F | 53°F | 0" | 0" |
| 2013 | 68°F | 51°F | 0" | 0" |
| 2012 | 72°F | 59°F | 0" | 0" |
| 2011 | 65°F | 54°F | 1.63" | 0" |
| 2010 | 56°F | 49°F | 0" | 0" |
| 2009 | 71°F | 59°F | 0.33" | 0" |
| 2008 | 77°F | 56°F | 0" | 0" |
| 2007 | 82°F | 58°F | 2.08" | 0" |
| 2006 | 70°F | 52°F | 0" | 0" |
| 2005 | 76°F | 63°F | 0.61" | 0" |
| 2004 | 67°F | 47°F | 0" | 0" |
| 2003 | 57°F | 46°F | 0" | 0" |
| 2002 | 75°F | 50°F | 0" | 0" |
| 2001 | 54°F | 47°F | 0.53" | 0" |
| 2000 | 52°F | 38°F | 0" | 0" |
| 1999 | 87°F | 41°F | 0" | 0" |
| 1998 | 92°F | 71°F | 0" | 0" |
| 1997 | 66°F | 48°F | 0" | 0" |
| 1996 | 68°F | 48°F | -- | 0" |
| 1995 | 74°F | 35°F | -- | 0" |
| 1994 | 70°F | 46°F | 5.72" | 0" |
| 1993 | 64°F | 53°F | 0.58" | 0" |
| 1992 | 73°F | 58°F | 1.47" | 0" |
| 1991 | 63°F | 44°F | 0" | 0" |
| 1990 | 78°F | 50°F | 0" | 0" |
| 1989 | 69°F | 50°F | 0" | 0" |
| 1988 | 81°F | 48°F | 0" | 0" |
| 1987 | 85°F | 43°F | 0" | 0" |
| 1986 | 89°F | 57°F | 1.68" | 0" |
| 1985 | 63°F | 49°F | 0.3" | 0" |
| 1984 | 57°F | 41°F | 0" | 0" |
| 1983 | 75°F | 51°F | 0" | 0" |
| 1982 | 63°F | 48°F | 0" | 0" |
| 1981 | 75°F | 61°F | 1.8" | 0" |
| 1980 | 72°F | 47°F | 0" | 0" |
| 1979 | 81°F | 43°F | 0" | 0" |
| 1978 | 78°F | 43°F | 0" | 0" |
| 1977 | 79°F | 55°F | 0" | 0" |
| 1976 | 67°F | 57°F | 3.61" | 0" |
| 1975 | 62°F | 50°F | 0" | 0" |
| 1974 | 80°F | 44°F | 0.08" | 0" |
| 1973 | 87°F | 57°F | 0" | 0" |
| 1972 | 80°F | 62°F | 0.05" | 0" |
| 1971 | 75°F | 54°F | 0.43" | 0" |