Weather on August 23
Rockford, IL
55 Years of Data
Avg High
81°F
Avg Low
60°F
Warmest
2023
86°F avg
Coldest
1987
61°F avg
About This Date
August 23rd in Rockford, IL typically brings warm summer weather, with average highs around 81°F and lows near 60°F. Over 55 years of records, the warmest August 23rd was in 2023 (86°F average), while the coldest was 1987 (61°F) — a 25°F range across recorded history. Rain or other precipitation has occurred on about 22% of August 23rd dates historically, with the wettest August 23rd recording 3.48" 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 23rd in Rockford, 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 | 79° | 58° | 68° | — | — |
| 2024 | 79° | 51° | 65° | — | — |
| 2023warmest | 97° | 75° | 86° | — | — |
| 2022 | 83° | 58° | 70° | — | — |
| 2021 | 82° | 63° | 72° | 0.03" | — |
| 2020 | 91° | 67° | 79° | — | — |
| 2019 | 78° | 58° | 68° | — | — |
| 2018 | 77° | 53° | 65° | — | — |
| 2017 | 77° | 53° | 65° | — | — |
| 2016 | 81° | 59° | 70° | — | — |
| 2015 | 77° | 57° | 67° | 0.03" | — |
| 2014 | 79° | 68° | 73° | 0.58" | — |
| 2013 | 82° | 59° | 71° | — | — |
| 2012 | 93° | 64° | 79° | — | — |
| 2011 | 77° | 62° | 70° | 2.77" | — |
| 2010 | 84° | 61° | 72° | — | — |
| 2009 | 75° | 51° | 63° | — | — |
| 2008 | 85° | 63° | 74° | — | — |
| 2007 | 85° | 70° | 77° | 3.12" | — |
| 2006 | 89° | 59° | 74° | — | — |
| 2005 | 75° | 54° | 64° | — | — |
| 2004 | 83° | 62° | 72° | — | — |
| 2003 | 86° | 55° | 71° | — | — |
| 2002 | 79° | 65° | 72° | 0.18" | — |
| 2001 | 82° | 66° | 74° | — | — |
| 2000 | 79° | 66° | 72° | — | — |
| 1999 | 73° | 62° | 68° | 2.21" | — |
| 1998 | 91° | 68° | 80° | — | — |
| 1997 | 74° | 49° | 61° | 0.13" | — |
| 1996 | 79° | 59° | 69° | — | — |
| 1995 | 85° | 60° | 72° | — | — |
| 1994 | 80° | 58° | 69° | — | — |
| 1993 | 90° | 69° | 79° | — | — |
| 1992 | 85° | 62° | 73° | — | — |
| 1991 | 86° | 60° | 73° | — | — |
| 1990 | 80° | 55° | 68° | — | — |
| 1989 | 73° | 63° | 68° | 0.25" | — |
| 1988 | 86° | 62° | 74° | — | — |
| 1987coldest | 70° | 52° | 61° | — | — |
| 1986 | 75° | 55° | 65° | — | — |
| 1985 | 78° | 57° | 68° | — | — |
| 1984 | 71° | 53° | 62° | — | — |
| 1983 | 84° | 62° | 73° | — | — |
| 1982 | 82° | 61° | 71° | — | — |
| 1981 | 82° | 59° | 71° | — | — |
| 1980 | 82° | 54° | 68° | — | — |
| 1979 | 77° | 57° | 67° | — | — |
| 1978 | 88° | 63° | 75° | — | — |
| 1977 | 72° | 58° | 65° | 0.2" | — |
| 1976 | 85° | 63° | 74° | — | — |
| 1975 | 92° | 70° | 81° | — | — |
| 1974 | 78° | 56° | 67° | — | — |
| 1973 | 64° | 60° | 62° | 3.48" | — |
| 1972 | 72° | 66° | 69° | 1.04" | — |
| 1971 | 76° | 61° | 68° | — | — |
55 years of data from ROCKFORD GTR ROCKFORD AP