Weather on August 11
Rockford, IL
55 Years of Data
Avg High
81°F
Avg Low
61°F
Warmest
1988
81°F avg
Coldest
2004
56°F avg
About This Date
August 11th in Rockford, IL typically brings warm summer weather, with average highs around 81°F and lows near 61°F. Over 55 years of records, the warmest August 11th was in 1988 (81°F average), while the coldest was 2004 (56°F) — a 25°F range across recorded history. Rain or other precipitation has occurred on about 27% of August 11th dates historically, with the wettest August 11th recording 4.62" of rain. The last decade has been 4.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.2°F warmer on this date compared to 20-30 years ago.
Planning for August 11th in Rockford, IL? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 84° | 71° | 78° | — | — |
| 2024 | 80° | 50° | 65° | — | — |
| 2023 | 84° | 67° | 75° | 0.18" | — |
| 2022 | 81° | 59° | 70° | — | — |
| 2021 | 88° | 71° | 79° | 0.3" | — |
| 2020 | 85° | 62° | 73° | — | — |
| 2019 | 80° | 64° | 72° | 4.62" | — |
| 2018 | 87° | 62° | 75° | — | — |
| 2017 | 77° | 60° | 69° | — | — |
| 2016 | 89° | 71° | 80° | 0.1" | — |
| 2015 | 85° | 62° | 73° | — | — |
| 2014 | 84° | 64° | 74° | 0.15" | — |
| 2013 | 80° | 55° | 68° | 0.13" | — |
| 2012 | 79° | 52° | 65° | — | — |
| 2011 | 79° | 53° | 66° | — | — |
| 2010 | 88° | 71° | 79° | — | — |
| 2009 | 83° | 62° | 72° | — | — |
| 2008 | 77° | 53° | 65° | — | — |
| 2007 | 87° | 69° | 78° | — | — |
| 2006 | 80° | 62° | 71° | — | — |
| 2005 | 80° | 66° | 73° | 2.39" | — |
| 2004coldest | 61° | 51° | 56° | 0.05" | — |
| 2003 | 78° | 66° | 72° | — | — |
| 2002 | 94° | 65° | 79° | — | — |
| 2001 | 80° | 58° | 69° | — | — |
| 2000 | 83° | 60° | 71° | — | — |
| 1999 | 83° | 61° | 72° | — | — |
| 1998 | 80° | 61° | 70° | — | — |
| 1997 | 66° | 61° | 63° | 0.66" | — |
| 1996 | 78° | 60° | 69° | — | — |
| 1995 | 92° | 67° | 79° | — | — |
| 1994 | 71° | 58° | 64° | — | — |
| 1993 | 89° | 62° | 76° | — | — |
| 1992 | 78° | 58° | 68° | — | — |
| 1991 | 85° | 58° | 71° | — | — |
| 1990 | 84° | 63° | 73° | 0.46" | — |
| 1989 | 83° | 58° | 70° | — | — |
| 1988warmest | 93° | 70° | 81° | — | — |
| 1987 | 81° | 65° | 73° | — | — |
| 1986 | 73° | 51° | 62° | — | — |
| 1985 | 79° | 54° | 66° | — | — |
| 1984 | 84° | 64° | 74° | — | — |
| 1983 | 73° | 60° | 67° | — | — |
| 1982 | 74° | 47° | 60° | — | — |
| 1981 | 81° | 55° | 68° | — | — |
| 1980 | 79° | 64° | 71° | 0.84" | — |
| 1979 | 73° | 55° | 64° | — | — |
| 1978 | 81° | 65° | 73° | — | — |
| 1977 | 71° | 56° | 63° | 0.61" | — |
| 1976 | 89° | 67° | 78° | 0.15" | — |
| 1975 | 87° | 66° | 77° | 0.89" | — |
| 1974 | 86° | 61° | 73° | — | — |
| 1973 | 85° | 62° | 73° | — | — |
| 1972 | 76° | 62° | 69° | 2.67" | — |
| 1971 | 77° | 58° | 67° | — | — |
55 years of data from ROCKFORD GTR ROCKFORD AP