Weather on June 30 at Indiana Dunes
Indiana Dunes National Park
Based on 55 years of data from Gary, IN
Planning Your Visit
June 30th in Indiana Dunes National Park (via Gary, IN) typically brings warm summer weather, with average highs around 82°F and lows near 62°F. Over 55 years of records, the warmest June 30th was in 2018 (84°F average), while the coldest was 1982 (60°F) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 38% of June 30th dates historically, with the wettest June 30th recording 6.22" of rain. The last decade has been 3.0°F warmer on this date compared to 20-30 years ago.
The last decade has been 3.0°F warmer on this date compared to 20-30 years ago.
Planning for June 30th 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 | 93°F | 75°F | 0" | 0" |
| 2024 | 89°F | 62°F | 0" | 0" |
| 2023 | 85°F | 67°F | 0.15" | 0" |
| 2022 | 83°F | 69°F | 0" | 0" |
| 2021 | 86°F | 70°F | 0.66" | 0" |
| 2020 | 89°F | 69°F | 0.13" | 0" |
| 2019 | 87°F | 66°F | -- | -- |
| 2018 | 92°F | 77°F | -- | -- |
| 2017 | 84°F | 64°F | 2.72" | 0" |
| 2016 | 73°F | 53°F | 0" | 0" |
| 2015 | 72°F | 61°F | 2.34" | 0" |
| 2014 | 86°F | 71°F | 0.56" | 0" |
| 2013 | 71°F | 62°F | 0" | 0" |
| 2012 | 84°F | 64°F | 1.27" | 0" |
| 2011 | 76°F | 59°F | 0" | 0" |
| 2010 | 70°F | 54°F | 0" | 0" |
| 2009 | 78°F | 62°F | 0" | 0" |
| 2008 | 76°F | 61°F | 0.43" | 0" |
| 2007 | 75°F | 56°F | 0" | 0" |
| 2006 | 73°F | 52°F | 0" | 0" |
| 2005 | 86°F | 72°F | 0.03" | 0" |
| 2004 | 80°F | 57°F | 0" | 0" |
| 2003 | 82°F | 59°F | -- | -- |
| 2002 | 86°F | 70°F | 0" | 0" |
| 2001 | 86°F | 69°F | 0" | 0" |
| 2000 | 84°F | 58°F | 0" | 0" |
| 1999 | 79°F | 60°F | 1.73" | 0" |
| 1998 | 86°F | 60°F | 0" | 0" |
| 1997 | 84°F | 67°F | 1.27" | 0" |
| 1996 | 85°F | -- | -- | 0" |
| 1995 | 78°F | 60°F | -- | 0" |
| 1994 | 85°F | 56°F | 0" | 0" |
| 1993 | 72°F | 58°F | 1.32" | 0" |
| 1992 | 81°F | 56°F | 0" | 0" |
| 1991 | -- | 72°F | 0" | 0" |
| 1990 | 85°F | 71°F | 0" | 0" |
| 1989 | 80°F | 52°F | 0" | 0" |
| 1988 | 72°F | 48°F | 0" | 0" |
| 1987 | 82°F | 62°F | 1.19" | 0" |
| 1986 | 85°F | 54°F | 0.91" | 0" |
| 1985 | 77°F | 59°F | 0" | 0" |
| 1984 | 69°F | 52°F | 0" | 0" |
| 1983 | 87°F | 67°F | 0.69" | 0" |
| 1982 | 66°F | 53°F | 0" | 0" |
| 1981 | 92°F | 67°F | 0.05" | 0" |
| 1980 | 84°F | 59°F | 0" | 0" |
| 1979 | 75°F | 56°F | 0.91" | 0" |
| 1978 | 87°F | 67°F | 0.25" | 0" |
| 1977 | 84°F | 62°F | 6.22" | 0" |
| 1976 | 76°F | 60°F | 1.91" | 0" |
| 1975 | 87°F | 63°F | 0" | 0" |
| 1974 | 86°F | 72°F | 0" | 0" |
| 1973 | 79°F | 53°F | 0" | 0" |
| 1972 | 86°F | 55°F | 0" | 0" |
| 1971 | 94°F | 73°F | 0.15" | 0" |