Weather on October 4 at Indiana Dunes
Indiana Dunes National Park
Based on 53 years of data from Gary, IN
Planning Your Visit
October 4th in Indiana Dunes National Park (via Gary, IN) typically brings mild fall weather, with average highs around 69°F and lows near 49°F. Over 53 years of records, the warmest October 4th was in 2005 (76°F average), while the coldest was 1980 (44°F) — a 32°F range across recorded history. Rain or other precipitation has occurred on about 40% of October 4th dates historically, with the wettest October 4th recording 3.94" of rain. The last decade has been 6.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 6.8°F warmer on this date compared to 20-30 years ago.
Planning for October 4th 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 | 89°F | 63°F | -- | -- |
| 2024 | 78°F | 54°F | 0.03" | 0" |
| 2023 | 87°F | 63°F | 0" | 0" |
| 2022 | 62°F | 39°F | 0" | 0" |
| 2021 | 67°F | 63°F | -- | -- |
| 2020 | 54°F | 43°F | -- | -- |
| 2019 | 67°F | 54°F | 0" | 0" |
| 2018 | 87°F | 60°F | 0.03" | -- |
| 2017 | 80°F | 65°F | 0" | 0" |
| 2016 | 64°F | 57°F | 0" | 0" |
| 2015 | 55°F | 46°F | 0.03" | 0" |
| 2014 | 60°F | 38°F | 0.51" | 0" |
| 2013 | 76°F | 65°F | 1.07" | 0" |
| 2012 | 61°F | 53°F | 0" | 0" |
| 2011 | 60°F | 41°F | 0" | 0" |
| 2010 | 55°F | 36°F | 0" | 0" |
| 2009 | 58°F | 48°F | 0.15" | 0" |
| 2008 | 58°F | 40°F | 0" | 0" |
| 2007 | 72°F | 53°F | 0" | 0" |
| 2006 | 82°F | 59°F | 0.13" | 0" |
| 2005 | 85°F | 68°F | 0" | 0" |
| 2004 | 68°F | 36°F | 0" | 0" |
| 2003 | 53°F | 43°F | 0.56" | 0" |
| 2002 | 73°F | 60°F | 0" | 0" |
| 2001 | 82°F | 55°F | 0" | 0" |
| 1999 | 46°F | 41°F | 2.06" | 0" |
| 1998 | 66°F | 42°F | 0" | 0" |
| 1996 | 70°F | 39°F | 0" | 0" |
| 1995 | 62°F | 45°F | 0.1" | 0" |
| 1994 | 66°F | 46°F | 0" | 0" |
| 1993 | 67°F | 51°F | 0" | 0" |
| 1992 | 80°F | 54°F | 0" | 0" |
| 1991 | 71°F | 54°F | 3.91" | 0" |
| 1990 | 81°F | 49°F | 3.94" | 0" |
| 1989 | 60°F | 36°F | 0" | 0" |
| 1988 | 62°F | 42°F | 0" | 0" |
| 1987 | 67°F | 32°F | 0" | 0" |
| 1986 | 71°F | 56°F | 0.2" | 0" |
| 1985 | 65°F | 46°F | 1.88" | 0" |
| 1984 | 73°F | 36°F | 0" | 0" |
| 1983 | 82°F | 59°F | 0.08" | 0" |
| 1982 | 79°F | 45°F | 0" | 0" |
| 1981 | 70°F | 42°F | 0.25" | 0" |
| 1980 | 48°F | 39°F | 0.25" | 0" |
| 1979 | 59°F | 41°F | 0.03" | 0" |
| 1978 | 65°F | 49°F | 0.03" | 0" |
| 1977 | 69°F | 39°F | 0" | 0" |
| 1976 | 81°F | 55°F | 0" | 0" |
| 1975 | 74°F | 38°F | 0" | 0" |
| 1974 | 75°F | 47°F | 0" | 0" |
| 1973 | 78°F | 58°F | 0.41" | 0" |
| 1972 | 72°F | 56°F | 0" | 0" |
| 1971 | 71°F | 50°F | 0.53" | 0" |