Weather on September 28
Naperville, IL
55 Years of Data
Avg High
73°F
Avg Low
48°F
Warmest
1971
76°F avg
Coldest
1984
47°F avg
About This Date
September 28th in Naperville, IL typically brings pleasant fall weather, with average highs around 73°F and lows near 48°F — a 25°F daily swing. Over 55 years of records, the warmest September 28th was in 1971 (76°F average), while the coldest was 1984 (47°F) — a 29°F range across recorded history. Rain or other precipitation has occurred on about 24% of September 28th dates historically, with the wettest September 28th recording 4.42" of rain. The last decade has been 1.9°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.9°F warmer on this date compared to 20-30 years ago.
Planning for September 28th in Naperville, IL? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 87° | 54° | 70° | — | — |
| 2024 | 69° | 61° | 65° | — | — |
| 2023 | 69° | 56° | 62° | 0.3" | — |
| 2022 | 59° | 42° | 51° | — | — |
| 2021 | 88° | 55° | 71° | — | — |
| 2020 | 76° | 51° | 63° | 1.07" | — |
| 2019 | 68° | 58° | 63° | 4.42" | — |
| 2018 | 70° | 42° | 56° | — | — |
| 2017 | 75° | 44° | 60° | — | — |
| 2016 | 70° | 50° | 60° | 0.03" | — |
| 2015 | 77° | 60° | 69° | — | — |
| 2014 | 79° | 49° | 64° | — | — |
| 2013 | 80° | 46° | 63° | — | — |
| 2012 | 66° | 39° | 53° | — | — |
| 2011 | 63° | 51° | 57° | 0.33" | — |
| 2010 | 66° | 42° | 54° | — | — |
| 2009 | 62° | 47° | 54° | — | — |
| 2008 | 79° | 54° | 66° | — | — |
| 2007 | 75° | 45° | 60° | — | — |
| 2006 | 64° | 41° | 53° | — | — |
| 2005 | 75° | 50° | 63° | 1.42" | — |
| 2004 | 77° | 50° | 64° | — | — |
| 2003 | 60° | 44° | 52° | 0.15" | — |
| 2002 | 75° | 44° | 60° | — | — |
| 2001 | 67° | 44° | 55° | — | — |
| 2000 | 73° | 39° | 56° | — | — |
| 1999 | 66° | 58° | 62° | 3.71" | — |
| 1998 | 87° | 50° | 69° | — | — |
| 1997 | 76° | 58° | 67° | — | — |
| 1996 | 63° | 46° | 54° | — | — |
| 1995 | 83° | 49° | 66° | — | — |
| 1994 | 65° | 48° | 56° | — | — |
| 1993 | 60° | 44° | 52° | 0.13" | — |
| 1992 | 69° | 48° | 59° | — | — |
| 1991 | 68° | 34° | 51° | — | — |
| 1990 | 80° | 58° | 69° | — | — |
| 1989 | 75° | 37° | 56° | — | — |
| 1988 | 81° | 58° | 69° | — | — |
| 1987 | 86° | 53° | 70° | 0.38" | — |
| 1986 | 84° | 65° | 74° | — | — |
| 1985 | 77° | 43° | 60° | — | — |
| 1984coldest | 58° | 36° | 47° | — | — |
| 1983 | 82° | 50° | 66° | — | — |
| 1982 | 76° | 44° | 60° | — | — |
| 1981 | 68° | 39° | 54° | — | — |
| 1980 | 64° | 45° | 54° | — | — |
| 1979 | 84° | 48° | 66° | — | — |
| 1978 | 64° | 39° | 52° | — | — |
| 1977 | 73° | 47° | 60° | — | — |
| 1976 | 66° | 40° | 53° | 2.41" | — |
| 1975 | 73° | 36° | 54° | — | — |
| 1974 | 74° | 58° | 66° | 0.69" | — |
| 1973 | 74° | 61° | 67° | 0.76" | — |
| 1972 | 77° | 52° | 64° | — | — |
| 1971warmest | 88° | 64° | 76° | — | — |
55 years of data from WHEATON 3 SE