Weather on August 18
Elgin, IL
55 Years of Data
Avg High
82°F
Avg Low
61°F
Warmest
1988
85°F avg
Coldest
1981
60°F avg
About This Date
August 18th in Elgin, IL typically brings warm summer weather, with average highs around 82°F and lows near 61°F. Over 55 years of records, the warmest August 18th was in 1988 (85°F average), while the coldest was 1981 (60°F) — a 25°F range across recorded history. Rain or other precipitation has occurred on about 29% of August 18th dates historically, with the wettest August 18th recording 5.33" of rain. The last decade has been 1.8°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.8°F warmer on this date compared to 20-30 years ago.
Planning for August 18th in Elgin, IL? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 84° | 69° | 77° | 0.38" | — |
| 2024 | 82° | 67° | 74° | 0.15" | — |
| 2023 | 78° | 54° | 66° | 0.61" | — |
| 2022 | 83° | 57° | 70° | — | — |
| 2021 | 85° | 62° | 73° | — | — |
| 2020 | 86° | 62° | 74° | — | — |
| 2019 | 79° | 63° | 71° | 0.05" | — |
| 2018 | 85° | 67° | 76° | — | — |
| 2017 | 81° | 64° | 72° | — | — |
| 2016 | 88° | 69° | 78° | 0.58" | — |
| 2015 | 87° | 68° | 78° | 0.05" | — |
| 2014 | 76° | 62° | 69° | — | — |
| 2013 | 81° | 54° | 67° | — | — |
| 2012 | 77° | 50° | 64° | — | — |
| 2011 | 83° | 62° | 72° | 0.03" | — |
| 2010 | 82° | 60° | 71° | 0.13" | — |
| 2009 | 82° | 67° | 74° | 0.2" | — |
| 2008 | 83° | 62° | 72° | — | — |
| 2007 | 77° | 56° | 66° | — | — |
| 2006 | 83° | 60° | 71° | — | — |
| 2005 | 87° | 61° | 74° | — | — |
| 2004 | 80° | 60° | 70° | — | — |
| 2003 | 87° | 63° | 75° | — | — |
| 2002 | 87° | 53° | 70° | — | — |
| 2001 | 81° | 60° | 70° | — | — |
| 2000 | 74° | 60° | 67° | 0.64" | — |
| 1999 | 86° | 61° | 73° | — | — |
| 1998 | 84° | 67° | 75° | — | — |
| 1997 | 78° | 59° | 69° | 0.56" | — |
| 1996 | 80° | 60° | 70° | — | — |
| 1995 | 90° | 72° | 81° | — | — |
| 1994 | 82° | 59° | 71° | — | — |
| 1993 | 82° | 67° | 74° | — | — |
| 1992 | 76° | 52° | 64° | — | — |
| 1991 | 82° | 62° | 72° | — | — |
| 1990 | 73° | 69° | 71° | 5.33" | — |
| 1989 | 77° | 55° | 66° | — | — |
| 1988warmest | 98° | 72° | 85° | — | — |
| 1987 | 83° | 62° | 72° | — | — |
| 1986 | 82° | 61° | 71° | 0.46" | — |
| 1985 | — | 56° | — | — | — |
| 1984 | 76° | 62° | 69° | — | — |
| 1983 | 92° | 67° | 79° | — | — |
| 1982 | 79° | 54° | 66° | — | — |
| 1981coldest | 70° | 51° | 60° | — | — |
| 1980 | 72° | 59° | 65° | 0.15" | — |
| 1979 | 76° | 55° | 65° | 4.19" | — |
| 1978 | 82° | 62° | 72° | 0.38" | — |
| 1977 | 76° | 50° | 63° | — | — |
| 1976 | 81° | 50° | 65° | — | — |
| 1975 | 76° | 57° | 66° | — | — |
| 1974 | 86° | 62° | 74° | — | — |
| 1973 | 83° | 64° | 73° | — | — |
| 1972 | 94° | 72° | 83° | — | — |
| 1971 | 88° | 52° | 70° | — | — |
55 years of data from ELGIN WATER