Weather on October 1 at Indiana Dunes
Indiana Dunes National Park
INMidwest600 ft elevation
Avg High72°F
Avg Low49°F
Warmest201978°F
Coldest200343°F
Based on 55 years of data from Gary, IN
Planning Your Visit
October 1st in Indiana Dunes National Park (via Gary, IN) typically brings pleasant fall weather, with average highs around 72°F and lows near 49°F. Over 55 years of records, the warmest October 1st was in 2019 (78°F average), while the coldest was 2003 (43°F) — a 35°F range across recorded history. Rain or other precipitation has occurred on about 22% of October 1st dates historically, with the wettest October 1st recording 3.53" 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 October 1st in Indiana Dunes? Great weather for outdoor activities.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 81°F | 53°F | 0" | 0" |
| 2024 | 77°F | 62°F | 0" | 0" |
| 2023 | 82°F | 60°F | 0" | 0" |
| 2022 | 63°F | 43°F | 0" | 0" |
| 2021 | 81°F | 58°F | 0" | 0" |
| 2020 | 63°F | 44°F | 0.03" | 0" |
| 2019 | 86°F | 70°F | 0" | 0" |
| 2018 | 74°F | 55°F | -- | -- |
| 2017 | 66°F | 46°F | 0" | 0" |
| 2016 | 66°F | 57°F | 3.53" | 0" |
| 2015 | 60°F | 45°F | 0" | 0" |
| 2014 | 59°F | 46°F | 0.03" | 0" |
| 2013 | 72°F | 50°F | 0" | 0" |
| 2012 | 63°F | 47°F | 0" | 0" |
| 2011 | 56°F | 46°F | 0.15" | 0" |
| 2010 | 69°F | 47°F | 0" | 0" |
| 2009 | 58°F | 38°F | 0" | 0" |
| 2008 | 60°F | 55°F | 0.25" | 0" |
| 2007 | 83°F | 57°F | 0.79" | 0" |
| 2006 | 67°F | 47°F | 0.71" | 0" |
| 2005 | 71°F | 45°F | 0" | 0" |
| 2004 | 69°F | 46°F | 0" | 0" |
| 2003 | 53°F | 34°F | 0" | 0" |
| 2002 | 85°F | 68°F | 0" | 0" |
| 2001 | 66°F | 48°F | 0" | 0" |
| 2000 | 77°F | 56°F | 0" | 0" |
| 1999 | 69°F | 47°F | 0" | 0" |
| 1998 | 60°F | 38°F | 0" | 0" |
| 1997 | 57°F | 39°F | -- | -- |
| 1996 | 77°F | 49°F | 0" | 0" |
| 1995 | 84°F | 59°F | 0.13" | 0" |
| 1994 | 83°F | 53°F | 0" | 0" |
| 1993 | 68°F | 51°F | 0" | 0" |
| 1992 | 73°F | 41°F | 0" | 0" |
| 1991 | 81°F | 55°F | 0" | 0" |
| 1990 | 68°F | 43°F | 0" | 0" |
| 1989 | 78°F | 48°F | 0" | 0" |
| 1988 | 74°F | 64°F | 0.08" | 0" |
| 1987 | 71°F | 39°F | 0" | 0" |
| 1986 | 72°F | 56°F | 0.25" | 0" |
| 1985 | 55°F | 36°F | 0" | 0" |
| 1984 | 64°F | 33°F | 0" | 0" |
| 1983 | 82°F | 48°F | 0" | 0" |
| 1982 | 85°F | 55°F | 0" | 0" |
| 1981 | 84°F | 53°F | 0" | 0" |
| 1980 | 85°F | 39°F | 0" | 0" |
| 1979 | 74°F | 37°F | 0" | 0" |
| 1978 | 72°F | 56°F | 0" | 0" |
| 1977 | 66°F | 55°F | 1.6" | 0" |
| 1976 | 81°F | 44°F | 0" | 0" |
| 1975 | 75°F | 48°F | 0" | 0" |
| 1974 | 55°F | 37°F | 0" | 0" |
| 1973 | 71°F | 56°F | 0.08" | 0" |
| 1972 | 73°F | 43°F | 0" | 0" |
| 1971 | 90°F | 56°F | 0" | 0" |
October 1 at Nearby Parks
Holiday Weather at Indiana Dunes
Official NPS WebsiteVisit nps.gov/indu for park information, alerts, and reservations
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