Weather on May 8 at Indiana Dunes
Indiana Dunes National Park
Based on 55 years of data from Gary, IN
Planning Your Visit
May 8th in Indiana Dunes National Park (via Gary, IN) typically brings mild spring weather, with average highs around 67°F and lows near 45°F. Over 55 years of records, the warmest May 8th was in 1979 (78°F average), while the coldest was 1994 (41°F) — a 37°F range across recorded history. Rain or other precipitation has occurred on about 40% of May 8th dates historically, with the wettest May 8th recording 4.75" of rain. The last decade has been 3.1°F cooler on this date compared to 20-30 years ago.
The last decade has been 3.1°F cooler on this date compared to 20-30 years ago.
Planning for May 8th in Indiana Dunes? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 73°F | 43°F | 0" | 0" |
| 2024 | 79°F | 48°F | 2.67" | 0" |
| 2023 | 78°F | 46°F | 0.1" | 0" |
| 2022 | 56°F | 40°F | -- | 0" |
| 2021 | 50°F | 37°F | -- | -- |
| 2020 | 61°F | 40°F | 0" | 0" |
| 2019 | 52°F | 45°F | 0.03" | 0" |
| 2018 | 70°F | 51°F | 0" | 0" |
| 2017 | 50°F | 32°F | 0" | 0" |
| 2016 | 70°F | 37°F | 0.15" | 0" |
| 2015 | 86°F | 65°F | 0.03" | 0" |
| 2014 | 83°F | 60°F | 0" | 0" |
| 2013 | 63°F | 46°F | 0" | 0" |
| 2012 | 55°F | 48°F | 0.15" | 0" |
| 2011 | 63°F | 47°F | 0.28" | 0" |
| 2010 | 67°F | 44°F | 0.43" | 0" |
| 2009 | 78°F | 55°F | 0.18" | 0" |
| 2008 | 66°F | 45°F | 1.4" | 0" |
| 2007 | 82°F | 56°F | 0" | 0" |
| 2006 | 67°F | 44°F | 0" | 0" |
| 2005 | 63°F | 44°F | 0" | 0" |
| 2004 | 57°F | 44°F | 0.03" | 0" |
| 2003 | 58°F | 43°F | -- | -- |
| 2002 | 55°F | 41°F | 0.05" | 0" |
| 2001 | 74°F | 47°F | 0" | 0" |
| 2000 | 79°F | 67°F | 0" | 0" |
| 1999 | 57°F | 44°F | 0" | 0" |
| 1998 | 62°F | 51°F | 4.75" | 0" |
| 1997 | 71°F | 46°F | -- | 0" |
| 1996 | 68°F | 45°F | 0.86" | 0" |
| 1995 | 66°F | 50°F | 0.48" | 0" |
| 1994 | 48°F | 33°F | 0.64" | 0" |
| 1993 | 86°F | 61°F | 0" | 0" |
| 1992 | 69°F | 37°F | 0" | 0" |
| 1991 | 71°F | 49°F | 0" | 0" |
| 1990 | 80°F | 60°F | 0" | 0" |
| 1989 | 62°F | 34°F | 0" | 0" |
| 1988 | 85°F | 45°F | 0" | 0" |
| 1987 | 70°F | 44°F | 0.15" | 0" |
| 1986 | 70°F | 39°F | 0" | 0" |
| 1985 | 71°F | 45°F | 0" | 0" |
| 1984 | 70°F | -- | 0" | 0" |
| 1983 | 72°F | 27°F | 0.51" | 0" |
| 1982 | 69°F | 45°F | 0" | 0" |
| 1981 | 67°F | 32°F | 0" | 0" |
| 1980 | 53°F | 33°F | 0" | 0" |
| 1979 | 89°F | 66°F | 0" | 0" |
| 1978 | 70°F | 49°F | 0.69" | 0" |
| 1977 | 69°F | 30°F | 0" | 0" |
| 1976 | 60°F | 30°F | 0" | 0" |
| 1975 | 66°F | 53°F | 0" | 0" |
| 1974 | 58°F | 41°F | 2.41" | 0" |
| 1973 | 64°F | 54°F | 0.05" | 0" |
| 1972 | 49°F | 42°F | 1.04" | 0" |
| 1971 | 70°F | 39°F | 0" | 0" |