Weather on October 9 at Indiana Dunes
Indiana Dunes National Park
INMidwest600 ft elevation
Avg High67°F
Avg Low46°F
Warmest200771°F
Coldest200039°F
Based on 55 years of data from Gary, IN
Planning Your Visit
October 9th in Indiana Dunes National Park (via Gary, IN) typically brings mild fall weather, with average highs around 67°F and lows near 46°F. Over 55 years of records, the warmest October 9th was in 2007 (71°F average), while the coldest was 2000 (39°F) — a 32°F range across recorded history. Rain or other precipitation has occurred on about 29% of October 9th dates historically, with the wettest October 9th recording 3.81" of rain. The last decade has been 4.4°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.4°F warmer on this date compared to 20-30 years ago.
Planning for October 9th in Indiana Dunes? Great weather for outdoor activities.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 66°F | 44°F | -- | -- |
| 2024 | 73°F | 44°F | 0" | 0" |
| 2023 | 55°F | 40°F | 0" | 0" |
| 2022 | 57°F | 27°F | 0" | 0" |
| 2021 | 82°F | 60°F | -- | -- |
| 2020 | 69°F | 48°F | 0" | 0" |
| 2019 | 72°F | 48°F | -- | -- |
| 2018 | 85°F | 51°F | -- | -- |
| 2017 | 79°F | 52°F | 0" | 0" |
| 2016 | 59°F | 46°F | 0" | 0" |
| 2015 | 78°F | 57°F | 0.03" | 0" |
| 2014 | 63°F | 50°F | 0" | 0" |
| 2013 | 76°F | 45°F | 0" | 0" |
| 2012 | 57°F | 41°F | 0" | 0" |
| 2011 | 82°F | 52°F | 0" | 0" |
| 2010 | 80°F | 52°F | 0" | 0" |
| 2009 | 54°F | 50°F | 1.22" | 0" |
| 2008 | 60°F | 45°F | 0.08" | 0" |
| 2007 | 88°F | 54°F | 0.15" | 0" |
| 2006 | 75°F | 45°F | 0" | 0" |
| 2005 | 51°F | 40°F | 0" | 0" |
| 2004 | 67°F | 56°F | 0.53" | 0" |
| 2003 | 80°F | 54°F | 0" | 0" |
| 2002 | 66°F | 45°F | 0" | 0" |
| 2001 | 65°F | 45°F | 0" | 0" |
| 2000 | 46°F | 32°F | 0" | 0" |
| 1999 | 61°F | 58°F | 0.23" | 0" |
| 1998 | 55°F | 40°F | 0.3" | 0" |
| 1997 | 74°F | 42°F | -- | -- |
| 1996 | 58°F | 41°F | 0" | 0" |
| 1995 | 57°F | 43°F | 0" | 0" |
| 1994 | 76°F | 41°F | 2.72" | 0" |
| 1993 | 70°F | 42°F | 1.68" | 0" |
| 1992 | 65°F | 42°F | 0.13" | 0" |
| 1991 | 71°F | 55°F | 0" | 0" |
| 1990 | 51°F | 46°F | 3.81" | 0" |
| 1989 | 57°F | 31°F | 0.13" | 0" |
| 1988 | 64°F | 48°F | 0" | 0" |
| 1987 | 64°F | 52°F | 0.94" | 0" |
| 1986 | 69°F | 41°F | 0" | 0" |
| 1985 | 66°F | 55°F | 0.48" | 0" |
| 1984 | 75°F | 52°F | 0" | 0" |
| 1983 | 60°F | 39°F | 0" | 0" |
| 1982 | 75°F | 53°F | 0.13" | 0" |
| 1981 | 64°F | 33°F | 0" | 0" |
| 1980 | 68°F | 41°F | 0" | 0" |
| 1979 | 64°F | 46°F | 0" | 0" |
| 1978 | 73°F | 35°F | 0" | 0" |
| 1977 | 60°F | 44°F | 0" | 0" |
| 1976 | 55°F | 37°F | 0.18" | 0" |
| 1975 | 75°F | 47°F | 0" | 0" |
| 1974 | 65°F | 39°F | 0" | 0" |
| 1973 | 82°F | 57°F | 0" | 0" |
| 1972 | 66°F | 41°F | 0" | 0" |
| 1971 | 56°F | 41°F | 0" | 0" |
October 9 at Nearby Parks
Holiday Weather at Indiana Dunes
Official NPS WebsiteVisit nps.gov/indu for park information, alerts, and reservations
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