Weather on October 15
Rockford, IL
55 Years of Data
Avg High
62°F
Avg Low
41°F
Warmest
1989
67°F avg
Coldest
1991
38°F avg
About This Date
October 15th in Rockford, IL typically brings mild fall weather, with average highs around 62°F and lows near 41°F. Over 55 years of records, the warmest October 15th was in 1989 (67°F average), while the coldest was 1991 (38°F) — a 29°F range across recorded history. Rain or other precipitation has occurred on about 36% of October 15th dates historically, with the wettest October 15th recording 0.86" of rain. The last decade has been 2.5°F cooler on this date compared to 20-30 years ago.
The last decade has been 2.5°F cooler on this date compared to 20-30 years ago.
Planning for October 15th in Rockford, IL? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 60° | 54° | 57° | — | — |
| 2024 | 53° | 36° | 44° | — | — |
| 2023 | 58° | 38° | 48° | — | — |
| 2022 | 54° | 31° | 43° | — | — |
| 2021 | 61° | 46° | 53° | — | — |
| 2020 | 61° | 34° | 47° | — | — |
| 2019 | 66° | 39° | 53° | — | — |
| 2018 | 47° | 32° | 39° | 0.15" | — |
| 2017 | 66° | 41° | 54° | 0.03" | — |
| 2016 | 72° | 51° | 61° | — | — |
| 2015 | 71° | 41° | 56° | — | — |
| 2014 | 54° | 50° | 52° | 0.08" | — |
| 2013 | 67° | 45° | 56° | 0.71" | — |
| 2012 | 61° | 40° | 50° | — | — |
| 2011 | 62° | 45° | 53° | — | — |
| 2010 | 66° | 43° | 54° | — | — |
| 2009 | 43° | 38° | 40° | 0.86" | — |
| 2008 | 57° | 43° | 50° | 0.66" | — |
| 2007 | 74° | 52° | 63° | 0.84" | — |
| 2006 | 54° | 26° | 40° | — | — |
| 2005 | 68° | 39° | 54° | — | — |
| 2004 | 52° | 42° | 47° | 0.08" | — |
| 2003 | 62° | 35° | 49° | — | — |
| 2002 | 56° | 36° | 46° | — | — |
| 2001 | 49° | 41° | 45° | 0.08" | — |
| 2000 | 64° | 44° | 54° | — | — |
| 1999 | 81° | 45° | 63° | 0.15" | — |
| 1998 | 71° | 48° | 60° | 0.03" | — |
| 1997 | 56° | 30° | 43° | — | — |
| 1996 | 78° | 49° | 63° | — | — |
| 1995 | 54° | 35° | 44° | — | — |
| 1994 | 68° | 50° | 59° | — | — |
| 1993 | 69° | 51° | 60° | 0.13" | — |
| 1992 | 50° | 45° | 47° | 0.25" | — |
| 1991coldest | 49° | 28° | 38° | — | — |
| 1990 | 59° | 35° | 47° | — | — |
| 1989warmest | 83° | 52° | 67° | — | — |
| 1988 | 77° | 49° | 63° | — | — |
| 1987 | 74° | 47° | 60° | — | — |
| 1986 | 53° | 29° | 41° | — | — |
| 1985 | 64° | 40° | 52° | 0.05" | — |
| 1984 | 70° | 49° | 59° | 0.69" | — |
| 1983 | 69° | 38° | 53° | — | — |
| 1982 | 65° | 38° | 51° | 0.05" | — |
| 1981 | 62° | 40° | 51° | — | — |
| 1980 | 54° | 47° | 50° | 0.25" | — |
| 1979 | 68° | 40° | 54° | 0.05" | — |
| 1978 | 57° | 32° | 45° | 0.2" | — |
| 1977 | 59° | 37° | 48° | — | — |
| 1976 | 57° | 37° | 47° | — | — |
| 1975 | 64° | 37° | 51° | — | — |
| 1974 | 56° | 36° | 46° | — | — |
| 1973 | 72° | 46° | 59° | — | — |
| 1972 | 49° | 32° | 40° | 0.23" | — |
| 1971 | 78° | 45° | 61° | — | — |
55 years of data from ROCKFORD GTR ROCKFORD AP