Weather on August 27 at Indiana Dunes
Indiana Dunes National Park
Based on 55 years of data from Gary, IN
Planning Your Visit
August 27th in Indiana Dunes National Park (via Gary, IN) typically brings warm summer weather, with average highs around 82°F and lows near 63°F. Over 55 years of records, the warmest August 27th was in 1973 (83°F average), while the coldest was 2025 (59°F) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 31% of August 27th dates historically, with the wettest August 27th recording 3.99" 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 August 27th 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 | 74°F | 45°F | 0" | 0" |
| 2024 | 92°F | 73°F | 0" | 0" |
| 2023 | 74°F | 57°F | 0" | 0" |
| 2022 | 74°F | 53°F | 0" | 0" |
| 2021 | 86°F | -- | 0" | 0" |
| 2020 | 91°F | 74°F | 0" | 0" |
| 2019 | 76°F | 63°F | 0.41" | 0" |
| 2018 | 91°F | 76°F | -- | -- |
| 2017 | 76°F | 61°F | 0" | 0" |
| 2016 | 79°F | 71°F | 3.99" | 0" |
| 2015 | 63°F | 58°F | 0" | 0" |
| 2014 | 80°F | 64°F | 0.13" | 0" |
| 2013 | 88°F | 71°F | 0" | 0" |
| 2012 | 84°F | 67°F | 3.18" | 0" |
| 2011 | 79°F | 59°F | 0" | 0" |
| 2010 | 76°F | 54°F | 0" | 0" |
| 2009 | 73°F | 63°F | 2.54" | 0" |
| 2008 | 74°F | 59°F | 0" | 0" |
| 2007 | 78°F | 58°F | 0" | 0" |
| 2006 | 80°F | 69°F | 0.46" | 0" |
| 2005 | 84°F | 68°F | 0" | 0" |
| 2004 | 82°F | 68°F | 0.05" | 0" |
| 2003 | 89°F | 72°F | 0.66" | 0" |
| 2002 | 77°F | 62°F | 0" | 0" |
| 2001 | 77°F | 61°F | 0" | 0" |
| 2000 | 79°F | 63°F | 0" | 0" |
| 1999 | 85°F | 59°F | 0" | 0" |
| 1998 | 83°F | 65°F | 0.53" | 0" |
| 1997 | 79°F | 64°F | 0" | 0" |
| 1996 | 78°F | 59°F | -- | 0" |
| 1995 | 85°F | 68°F | 0" | 0" |
| 1994 | 81°F | 67°F | 0" | 0" |
| 1993 | 91°F | 65°F | 0" | 0" |
| 1992 | 87°F | 62°F | 1.35" | 0" |
| 1991 | 90°F | 66°F | 0" | 0" |
| 1990 | 92°F | 65°F | 0" | 0" |
| 1989 | 83°F | 66°F | 0" | 0" |
| 1988 | 76°F | 58°F | 2.92" | 0" |
| 1987 | 73°F | 63°F | 0.2" | 0" |
| 1986 | 75°F | 47°F | 2.84" | 0" |
| 1985 | 81°F | 48°F | 0" | 0" |
| 1984 | 87°F | 53°F | 0" | 0" |
| 1983 | 86°F | 69°F | 0.05" | 0" |
| 1982 | 73°F | 50°F | 0" | 0" |
| 1981 | 80°F | 65°F | 1.55" | 0" |
| 1980 | 92°F | 65°F | 0" | 0" |
| 1979 | 80°F | 59°F | 0.61" | 0" |
| 1978 | 86°F | 70°F | 0" | 0" |
| 1977 | 91°F | 74°F | 0" | 0" |
| 1976 | 92°F | 69°F | 1.78" | 0" |
| 1975 | 85°F | 57°F | 0" | 0" |
| 1974 | 90°F | 66°F | 0" | 0" |
| 1973 | 95°F | 72°F | 0" | 0" |
| 1972 | 75°F | 65°F | 0" | 0" |
| 1971 | 69°F | 62°F | 0" | 0" |