Weather on July 30 at Indiana Dunes
Indiana Dunes National Park
Based on 55 years of data from Gary, IN
Planning Your Visit
July 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 July 30th was in 1999 (90°F average), while the coldest was 1971 (61°F) — a 29°F range across recorded history. Rain or other precipitation has occurred on about 29% of July 30th dates historically, with the wettest July 30th recording 4.11" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for July 30th in Indiana Dunes? Stay hydrated and seek shade during peak afternoon hours.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 95°F | 73°F | 0" | 0" |
| 2024 | 84°F | 66°F | 0" | 0" |
| 2023 | 75°F | 60°F | 0" | 0" |
| 2022 | 77°F | 57°F | 0" | 0" |
| 2021 | 83°F | 65°F | 0" | 0" |
| 2020 | 89°F | 70°F | 0" | 0" |
| 2019 | 81°F | 63°F | 0.76" | 0" |
| 2018 | 78°F | 55°F | -- | -- |
| 2017 | 76°F | 65°F | 0" | 0" |
| 2016 | 82°F | 66°F | 0.74" | 0" |
| 2015 | 86°F | 68°F | 0" | 0" |
| 2014 | 73°F | 55°F | 0" | 0" |
| 2013 | 69°F | 53°F | 0" | 0" |
| 2012 | 82°F | 68°F | 0" | 0" |
| 2011 | 80°F | 62°F | 0" | 0" |
| 2010 | 80°F | 63°F | 0" | 0" |
| 2009 | 75°F | 57°F | 0" | 0" |
| 2008 | 88°F | 66°F | 0.03" | 0" |
| 2007 | 79°F | 64°F | 0" | 0" |
| 2006 | 91°F | 75°F | 0" | 0" |
| 2005 | 83°F | 59°F | 0" | 0" |
| 2004 | 81°F | 65°F | 0.28" | 0" |
| 2003 | 74°F | 59°F | 0" | 0" |
| 2002 | 82°F | 68°F | 0.61" | 0" |
| 2001 | 87°F | 66°F | 0" | 0" |
| 2000 | 81°F | 67°F | 0.36" | 0" |
| 1999 | 101°F | 80°F | 0" | 0" |
| 1998 | 82°F | 56°F | 0" | 0" |
| 1997 | 76°F | 54°F | -- | 0" |
| 1996 | 76°F | 62°F | 2.51" | 0" |
| 1995 | 92°F | 71°F | -- | 0" |
| 1994 | 77°F | 54°F | 0" | 0" |
| 1993 | 77°F | 45°F | 0" | 0" |
| 1992 | 67°F | 58°F | 0.51" | 0" |
| 1991 | 78°F | 61°F | 0" | 0" |
| 1990 | 85°F | 70°F | 1.3" | 0" |
| 1989 | 79°F | 68°F | 0.58" | 0" |
| 1988 | 96°F | 70°F | 4.11" | 0" |
| 1987 | 91°F | 66°F | 0" | 0" |
| 1986 | 86°F | 56°F | 0" | 0" |
| 1985 | 86°F | 60°F | 0" | 0" |
| 1984 | 82°F | 51°F | 0" | 0" |
| 1983 | 98°F | 69°F | 0.74" | 0" |
| 1982 | 83°F | 62°F | 0" | 0" |
| 1981 | 79°F | 52°F | 0" | 0" |
| 1980 | 78°F | -- | 0.13" | 0" |
| 1979 | 81°F | 68°F | 2.11" | 0" |
| 1978 | 77°F | 66°F | 0" | 0" |
| 1977 | 89°F | 55°F | 0" | 0" |
| 1976 | 85°F | 64°F | 0.05" | 0" |
| 1975 | 93°F | 61°F | 0" | 0" |
| 1974 | 78°F | 57°F | 0" | 0" |
| 1973 | 81°F | 63°F | 1.4" | 0" |
| 1972 | 80°F | 55°F | 0" | 0" |
| 1971 | 72°F | 51°F | 0" | 0" |