Weather on June 23 at Indiana Dunes
Indiana Dunes National Park
Based on 55 years of data from Gary, IN
Planning Your Visit
June 23rd in Indiana Dunes National Park (via Gary, IN) typically brings warm summer weather, with average highs around 81°F and lows near 60°F. Over 55 years of records, the warmest June 23rd was in 2025 (88°F average), while the coldest was 1972 (54°F) — a 34°F range across recorded history. Rain or other precipitation has occurred on about 31% of June 23rd dates historically, with the wettest June 23rd recording 3.1" of rain. The last decade has been 3.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.2°F warmer on this date compared to 20-30 years ago.
Planning for June 23rd in Indiana Dunes? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 96°F | 80°F | 0" | 0" |
| 2024 | 92°F | 68°F | 2.84" | 0" |
| 2023 | 76°F | 61°F | 0" | 0" |
| 2022 | 84°F | 59°F | 0" | 0" |
| 2021 | 72°F | 57°F | 0" | 0" |
| 2020 | 86°F | 63°F | 3.1" | 0" |
| 2019 | 81°F | 65°F | -- | -- |
| 2018 | 76°F | 60°F | -- | -- |
| 2017 | 87°F | 65°F | 1.68" | 0" |
| 2016 | 74°F | 68°F | 1.78" | 0" |
| 2015 | 84°F | 53°F | 0.05" | 0" |
| 2014 | 77°F | 64°F | 0.41" | 0" |
| 2013 | 84°F | 65°F | 0.1" | 0" |
| 2012 | 83°F | 56°F | 0" | 0" |
| 2011 | 75°F | 63°F | 0" | 0" |
| 2010 | 85°F | 72°F | 0" | 0" |
| 2009 | 88°F | 71°F | 0" | 0" |
| 2008 | 78°F | 54°F | 0.36" | 0" |
| 2007 | 73°F | 61°F | 0" | 0" |
| 2006 | 78°F | 64°F | 0.23" | 0" |
| 2005 | 74°F | 58°F | 0" | 0" |
| 2004 | 70°F | 52°F | 0" | 0" |
| 2003 | 89°F | 58°F | -- | -- |
| 2002 | 92°F | 69°F | 0" | 0" |
| 2001 | 66°F | 49°F | 0.03" | 0" |
| 2000 | 79°F | 59°F | 0" | 0" |
| 1999 | 86°F | 70°F | 0.15" | 0" |
| 1998 | 88°F | -- | 0" | 0" |
| 1997 | 91°F | 73°F | -- | 0" |
| 1996 | 75°F | 58°F | -- | 0" |
| 1995 | 87°F | 63°F | -- | 0" |
| 1994 | 85°F | 66°F | 0" | 0" |
| 1993 | 86°F | 60°F | 0" | 0" |
| 1992 | 73°F | 47°F | 0.15" | 0" |
| 1991 | 75°F | 58°F | 0" | 0" |
| 1990 | 71°F | 57°F | 0.97" | 0" |
| 1989 | 89°F | 71°F | 0" | 0" |
| 1988 | 98°F | 66°F | 0" | 0" |
| 1987 | 81°F | 61°F | 0" | 0" |
| 1986 | 85°F | 61°F | 0" | 0" |
| 1985 | 83°F | 63°F | 0.23" | 0" |
| 1984 | 80°F | 61°F | 0.18" | 0" |
| 1983 | 94°F | 60°F | 0" | 0" |
| 1982 | 73°F | 45°F | 0" | 0" |
| 1981 | 80°F | 55°F | 0" | 0" |
| 1980 | 86°F | 58°F | 0" | 0" |
| 1979 | 70°F | 49°F | 0" | 0" |
| 1978 | 81°F | 52°F | 0" | 0" |
| 1977 | 84°F | 54°F | 0" | 0" |
| 1976 | 76°F | 58°F | 0.33" | 0" |
| 1975 | 92°F | 66°F | 0.97" | 0" |
| 1974 | 61°F | 52°F | 0" | 0" |
| 1973 | 78°F | 55°F | 0" | 0" |
| 1972 | 60°F | 48°F | 0" | 0" |
| 1971 | 85°F | 65°F | 0" | 0" |