Weather on September 7
Naperville, IL
55 Years of Data
Avg High
81°F
Avg Low
57°F
Warmest
1985
83°F avg
Coldest
2025
53°F avg
About This Date
September 7th in Naperville, IL typically brings warm fall weather, with average highs around 81°F and lows near 57°F. Over 55 years of records, the warmest September 7th was in 1985 (83°F average), while the coldest was 2025 (53°F) — a 30°F range across recorded history. Rain or other precipitation has occurred on about 27% of September 7th dates historically, with the wettest September 7th recording 8.51" of rain. The last decade has been 4.0°F cooler on this date compared to 20-30 years ago.
The last decade has been 4.0°F cooler on this date compared to 20-30 years ago.
Planning for September 7th in Naperville, IL? Stay hydrated and seek shade during peak afternoon hours.
Cooling Trend
0.3°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025coldest | 67° | 40° | 53° | — | — |
| 2024 | — | 45° | — | — | — |
| 2023 | 79° | 64° | 71° | 0.05" | — |
| 2022 | 81° | 60° | 70° | — | — |
| 2021 | 84° | 58° | 71° | — | — |
| 2020 | 80° | 62° | 71° | 2.03" | — |
| 2019 | 75° | 51° | 63° | — | — |
| 2018 | 68° | 62° | 65° | 1.4" | — |
| 2017 | 67° | 48° | 57° | — | — |
| 2016 | 93° | 74° | 83° | — | — |
| 2015 | 91° | 70° | 80° | — | — |
| 2014 | 74° | 52° | 63° | — | — |
| 2013 | 84° | 58° | 71° | — | — |
| 2012 | 85° | 54° | 69° | 0.13" | — |
| 2011 | 69° | 45° | 57° | — | — |
| 2010 | 83° | 63° | 73° | — | — |
| 2009 | 78° | 43° | 60° | — | — |
| 2008 | 68° | 52° | 60° | — | — |
| 2007 | 82° | 69° | 76° | 0.69" | — |
| 2006 | 82° | 55° | 69° | — | — |
| 2005 | 89° | 63° | 76° | — | — |
| 2004 | 75° | 52° | 63° | 0.28" | — |
| 2003 | 85° | 56° | 70° | — | — |
| 2002 | 89° | 54° | 71° | — | — |
| 2001 | 91° | 68° | 80° | 2.11" | — |
| 2000 | 90° | 60° | 75° | — | — |
| 1999 | 84° | 49° | 66° | — | — |
| 1998 | 72° | 60° | 66° | 8.51" | — |
| 1997 | 77° | 57° | 67° | — | — |
| 1996 | 86° | 68° | 77° | — | — |
| 1995 | 82° | 59° | 71° | — | — |
| 1994 | 78° | 48° | 63° | — | — |
| 1993 | 77° | 54° | 65° | — | — |
| 1992 | 85° | 62° | 73° | — | — |
| 1991 | 93° | 58° | 75° | — | — |
| 1990 | 95° | 69° | 82° | 0.64" | — |
| 1989 | 83° | 66° | 74° | 1.37" | — |
| 1988 | 77° | 44° | 61° | — | — |
| 1987 | 83° | 64° | 73° | — | — |
| 1986 | 70° | 41° | 55° | — | — |
| 1985warmest | 94° | 73° | 83° | 0.91" | — |
| 1984 | 90° | 40° | 65° | 0.25" | — |
| 1983 | 80° | 54° | 67° | 0.25" | — |
| 1982 | 71° | 58° | 64° | 1.24" | — |
| 1981 | 74° | 54° | 64° | — | — |
| 1980 | 80° | 59° | 70° | — | — |
| 1979 | 81° | 52° | 66° | — | — |
| 1978 | 95° | 60° | 78° | — | — |
| 1977 | 79° | 56° | 67° | — | — |
| 1976 | 90° | 60° | 75° | — | — |
| 1975 | 80° | 45° | 62° | — | — |
| 1974 | 76° | 50° | 63° | — | — |
| 1973 | 79° | 47° | 63° | — | — |
| 1972 | 77° | 64° | 71° | 1.52" | — |
| 1971 | 92° | 61° | 76° | — | — |
55 years of data from WHEATON 3 SE