Weather on August 31
South Bend, IN
55 Years of Data
Avg High
80°F
Avg Low
59°F
Warmest
2010
80°F avg
Coldest
2009
56°F avg
About This Date
August 31st in South Bend, IN typically brings warm summer weather, with average highs around 80°F and lows near 59°F. Over 55 years of records, the warmest August 31st was in 2010 (80°F average), while the coldest was 2009 (56°F) — a 24°F range across recorded history. Rain or other precipitation has occurred on about 20% of August 31st dates historically, with the wettest August 31st recording 2.36" of rain. The last decade has been 1.1°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.1°F cooler on this date compared to 20-30 years ago.
Planning for August 31st in South Bend, IN? Stay hydrated and seek shade during peak afternoon hours.
Cooling Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 76° | 48° | 62° | — | — |
| 2024 | 82° | 63° | 72° | — | — |
| 2023 | 78° | 48° | 63° | — | — |
| 2022 | 81° | 57° | 69° | — | — |
| 2021 | 82° | 60° | 71° | — | — |
| 2020 | 84° | 57° | 71° | — | — |
| 2019 | 75° | 50° | 63° | — | — |
| 2018 | 84° | 57° | 71° | — | — |
| 2017 | 74° | 57° | 65° | — | — |
| 2016 | 82° | 61° | 71° | — | — |
| 2015 | 84° | 60° | 72° | — | — |
| 2014 | 85° | 68° | 76° | — | — |
| 2013 | 80° | 69° | 75° | 0.1" | — |
| 2012 | 90° | 64° | 77° | — | — |
| 2011 | 88° | 63° | 75° | 0.05" | — |
| 2010warmest | 91° | 70° | 80° | — | — |
| 2009coldest | 70° | 43° | 56° | — | — |
| 2008 | 89° | 57° | 73° | — | — |
| 2007 | 78° | 54° | 66° | — | — |
| 2006 | 75° | 55° | 65° | — | — |
| 2005 | 79° | 59° | 69° | — | — |
| 2004 | 78° | 56° | 67° | — | — |
| 2003 | 68° | 58° | 63° | 1.09" | — |
| 2002 | 87° | 60° | 74° | — | — |
| 2001 | 77° | 56° | 66° | 0.05" | — |
| 2000 | 89° | 69° | 79° | — | — |
| 1999 | 80° | 54° | 67° | — | — |
| 1998 | 79° | 53° | 66° | — | — |
| 1997 | 75° | 60° | 68° | — | — |
| 1996 | 82° | 57° | 70° | — | — |
| 1995 | 83° | 66° | 74° | — | — |
| 1994 | 70° | 56° | 63° | — | — |
| 1993 | 74° | 58° | 66° | 0.89" | — |
| 1992 | 73° | 51° | 62° | — | — |
| 1991 | 84° | 61° | 72° | — | — |
| 1990 | 82° | 57° | 70° | — | — |
| 1989 | 82° | 56° | 69° | 0.38" | — |
| 1988 | 80° | 55° | 68° | — | — |
| 1987 | 70° | 54° | 62° | — | — |
| 1986 | 78° | 50° | 64° | — | — |
| 1985 | 76° | 59° | 67° | — | — |
| 1984 | 78° | 55° | 67° | 0.05" | — |
| 1983 | 85° | 68° | 76° | — | — |
| 1982 | 77° | 66° | 72° | — | — |
| 1981 | 80° | 69° | 75° | 0.1" | — |
| 1980 | 81° | 69° | 75° | 2.36" | — |
| 1979 | 85° | 66° | 75° | — | — |
| 1978 | 79° | 57° | 68° | — | — |
| 1977 | 89° | 65° | 77° | — | — |
| 1976 | 87° | 58° | 72° | — | — |
| 1975 | 72° | 65° | 68° | 0.58" | — |
| 1974 | 75° | 57° | 66° | 0.28" | — |
| 1973 | 89° | 69° | 79° | — | — |
| 1972 | 82° | 61° | 71° | — | — |
| 1971 | 81° | 62° | 71° | — | — |
55 years of data from S BEND