Weather on August 18
South Bend, IN
55 Years of Data
Avg High
81°F
Avg Low
62°F
Warmest
1983
82°F avg
Coldest
1977
61°F avg
About This Date
August 18th in South Bend, IN typically brings warm summer weather, with average highs around 81°F and lows near 62°F. Over 55 years of records, the warmest August 18th was in 1983 (82°F average), while the coldest was 1977 (61°F) — a 21°F range across recorded history. Rain or other precipitation has occurred on about 38% of August 18th dates historically, with the wettest August 18th recording 2.84" of rain. The last decade has been 2.3°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.3°F warmer on this date compared to 20-30 years ago.
Planning for August 18th in South Bend, IN? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 79° | 66° | 72° | 2.84" | — |
| 2024 | 75° | 64° | 70° | 0.23" | — |
| 2023 | 73° | 55° | 64° | — | — |
| 2022 | 82° | 56° | 69° | — | — |
| 2021 | 87° | 69° | 78° | — | — |
| 2020 | 77° | 58° | 67° | — | — |
| 2019 | 86° | 67° | 76° | 0.64" | — |
| 2018 | 80° | 65° | 72° | — | — |
| 2017 | 79° | 65° | 72° | — | — |
| 2016 | 82° | 66° | 74° | 0.18" | — |
| 2015 | 83° | 67° | 75° | 0.3" | — |
| 2014 | 83° | 65° | 74° | — | — |
| 2013 | 82° | 56° | 69° | — | — |
| 2012 | 75° | 47° | 61° | — | — |
| 2011 | 86° | 61° | 73° | — | — |
| 2010 | 82° | 65° | 73° | 0.05" | — |
| 2009 | 82° | 67° | 74° | — | — |
| 2008 | 85° | 63° | 74° | — | — |
| 2007 | 68° | 54° | 61° | 0.18" | — |
| 2006 | 84° | 72° | 78° | 0.08" | — |
| 2005 | 82° | 68° | 75° | 0.15" | — |
| 2004 | 77° | 61° | 69° | 0.51" | — |
| 2003 | 83° | 61° | 72° | — | — |
| 2002 | 77° | 58° | 67° | — | — |
| 2001 | 78° | 61° | 69° | 1.02" | — |
| 2000 | 75° | 55° | 65° | — | — |
| 1999 | 76° | 60° | 68° | 0.13" | — |
| 1998 | 81° | 65° | 73° | — | — |
| 1997 | 69° | 56° | 62° | 0.15" | — |
| 1996 | 82° | 59° | 71° | — | — |
| 1995 | 88° | 72° | 80° | 1.27" | — |
| 1994 | 81° | 58° | 69° | — | — |
| 1993 | 87° | 66° | 77° | — | — |
| 1992 | 77° | 57° | 67° | 1.17" | — |
| 1991 | 85° | 60° | 72° | 0.89" | — |
| 1990 | 87° | 68° | 78° | 1.27" | — |
| 1989 | 79° | 56° | 67° | — | — |
| 1988 | 89° | 68° | 79° | 2.03" | — |
| 1987 | 81° | 60° | 70° | 0.18" | — |
| 1986 | 82° | 62° | 72° | — | — |
| 1985 | 76° | 62° | 69° | 0.36" | — |
| 1984 | 85° | 63° | 74° | — | — |
| 1983warmest | 90° | 74° | 82° | — | — |
| 1982 | 82° | 56° | 69° | — | — |
| 1981 | 76° | 50° | 63° | — | — |
| 1980 | 80° | 65° | 72° | — | — |
| 1979 | 80° | 67° | 73° | 0.58" | — |
| 1978 | 88° | 69° | 78° | — | — |
| 1977coldest | 71° | 50° | 61° | — | — |
| 1976 | 81° | 53° | 67° | — | — |
| 1975 | 83° | 61° | 72° | — | — |
| 1974 | 86° | 60° | 73° | — | — |
| 1973 | 88° | 65° | 76° | — | — |
| 1972 | 90° | 72° | 81° | — | — |
| 1971 | 81° | 55° | 68° | — | — |
55 years of data from S BEND