Weather on November 18
Naperville, IL
55 Years of Data
Avg High
50°F
Avg Low
32°F
Warmest
2016
62°F avg
Coldest
2014
15°F avg
About This Date
November 18th in Naperville, IL typically brings cool fall weather, with average highs around 50°F and lows near 32°F. Over 55 years of records, the warmest November 18th was in 2016 (62°F average), while the coldest was 2014 (15°F) — a 47°F range across recorded history. Precipitation has occurred on 40% of recorded November 18th dates, with snow falling 5% of the time. The last decade has been 3.0°F cooler on this date compared to 20-30 years ago.
The last decade has been 3.0°F cooler on this date compared to 20-30 years ago.
Planning for November 18th in Naperville, IL? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Cooling Trend
1.2°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 48° | 24° | 36° | 0.79" | — |
| 2024 | 58° | 44° | 51° | 0.03" | — |
| 2023 | 50° | 20° | 35° | — | — |
| 2022 | 31° | 23° | 27° | 0.1" | 0.4" |
| 2021 | 60° | 31° | 45° | 0.58" | — |
| 2020 | 42° | 29° | 35° | — | — |
| 2019 | 41° | 26° | 34° | — | — |
| 2018 | 33° | 28° | 31° | 0.23" | 0.8" |
| 2017 | 46° | 33° | 40° | 0.25" | — |
| 2016warmest | 73° | 52° | 62° | — | — |
| 2015 | 62° | 41° | 52° | 2.67" | — |
| 2014coldest | 22° | 9° | 15° | 0.03" | — |
| 2013 | 67° | 36° | 51° | 2.03" | — |
| 2012 | 55° | 23° | 39° | 0.05" | — |
| 2011 | 37° | 20° | 28° | — | — |
| 2010 | 44° | — | — | — | — |
| 2009 | 44° | 36° | 40° | 0.56" | — |
| 2008 | 36° | 20° | 28° | — | — |
| 2007 | 44° | 30° | 37° | 0.1" | — |
| 2006 | 44° | 29° | 36° | — | — |
| 2005 | 38° | 15° | 26° | — | — |
| 2004 | 63° | 56° | 59° | — | — |
| 2003 | 61° | 51° | 56° | 3.45" | — |
| 2002 | 42° | 20° | 31° | — | — |
| 2001 | 66° | 48° | 57° | — | — |
| 2000 | 34° | 20° | 27° | — | — |
| 1999 | 73° | 42° | 58° | — | — |
| 1998 | 63° | 31° | 47° | — | — |
| 1997 | 42° | 25° | 33° | — | — |
| 1996 | 38° | 26° | 32° | 0.18" | — |
| 1995 | 39° | 34° | 36° | — | — |
| 1994 | 53° | 45° | 49° | — | — |
| 1993 | 50° | 24° | 37° | — | — |
| 1992 | 42° | 37° | 40° | — | — |
| 1991 | 68° | 48° | 58° | 0.79" | — |
| 1990 | 54° | 35° | 44° | — | — |
| 1989 | 39° | 16° | 27° | — | — |
| 1988 | 55° | 31° | 43° | — | — |
| 1987 | 49° | 35° | 42° | 0.18" | — |
| 1986 | 46° | 33° | 40° | 0.89" | — |
| 1985 | 59° | 45° | 52° | 0.71" | — |
| 1984 | 42° | 36° | 39° | — | — |
| 1983 | 60° | 36° | 48° | — | — |
| 1982 | 54° | 29° | 41° | — | — |
| 1981 | 50° | 28° | 39° | — | — |
| 1980 | 41° | 27° | 34° | 0.03" | 0.2" |
| 1979 | 69° | 35° | 52° | — | — |
| 1978 | 49° | 35° | 42° | 0.91" | — |
| 1977 | 44° | 35° | 40° | — | — |
| 1976 | 58° | 20° | 39° | — | — |
| 1975 | 67° | 40° | 53° | — | — |
| 1974 | 47° | 31° | 39° | — | — |
| 1973 | 60° | 40° | 50° | 0.05" | — |
| 1972 | 35° | 30° | 33° | — | — |
| 1971 | 65° | 48° | 56° | 1.04" | — |
55 years of data from LISLE - MORTON ARBORETUM