Weather on October 27
Joliet, IL
55 Years of Data
Avg High
58°F
Avg Low
40°F
Warmest
1971
69°F avg
Coldest
2020
34°F avg
About This Date
October 27th in Joliet, IL typically brings cool fall weather, with average highs around 58°F and lows near 40°F. Over 55 years of records, the warmest October 27th was in 1971 (69°F average), while the coldest was 2020 (34°F) — a 35°F range across recorded history. Rain or other precipitation has occurred on about 27% of October 27th dates historically, with the wettest October 27th recording 8.64" 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 October 27th in Joliet, IL? Bring layers as temperatures can vary throughout the day.
Cooling Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 61° | 42° | 51° | — | — |
| 2024 | 58° | 36° | 47° | — | — |
| 2023 | 70° | 58° | 64° | 0.76" | — |
| 2022 | 53° | 36° | 44° | — | — |
| 2021 | 57° | 38° | 47° | — | — |
| 2020coldest | 36° | 32° | 34° | — | — |
| 2019 | 48° | 38° | 43° | 8.64" | — |
| 2018 | 53° | 42° | 48° | — | — |
| 2017 | 61° | 38° | 49° | — | — |
| 2016 | 49° | 41° | 45° | — | — |
| 2015 | 62° | 41° | 52° | — | — |
| 2014 | 66° | 39° | 53° | — | — |
| 2013 | 54° | 30° | 42° | — | — |
| 2012 | 50° | 35° | 43° | — | — |
| 2011 | 50° | 44° | 47° | 0.05" | — |
| 2010 | 72° | 54° | 63° | 0.58" | — |
| 2009 | 54° | 46° | 50° | — | — |
| 2008 | 55° | 36° | 45° | — | — |
| 2007 | 66° | 51° | 59° | 1.3" | — |
| 2006 | 50° | 41° | 46° | 1.42" | — |
| 2005 | 51° | 39° | 45° | — | — |
| 2004 | 68° | 55° | 62° | 0.15" | — |
| 2003 | 56° | 34° | 45° | — | — |
| 2002 | 46° | 36° | 41° | — | — |
| 2001 | 40° | 36° | 38° | — | — |
| 2000 | 77° | 61° | 69° | 0.05" | — |
| 1999 | 62° | 40° | 51° | — | — |
| 1998 | 74° | 50° | 62° | — | — |
| 1997 | 44° | 28° | 36° | 2.46" | — |
| 1996 | 69° | 57° | 63° | — | — |
| 1995 | 63° | 43° | 53° | 0.76" | — |
| 1994 | 51° | 33° | 42° | — | — |
| 1993 | 61° | 43° | 52° | — | — |
| 1992 | 61° | 35° | 48° | — | — |
| 1991 | 55° | 48° | 52° | 0.03" | — |
| 1990 | 55° | 33° | 44° | — | — |
| 1989 | 75° | 50° | 63° | — | — |
| 1988 | 46° | 27° | 36° | — | — |
| 1987 | 50° | 35° | 43° | 0.15" | — |
| 1986 | 58° | 49° | 53° | 0.05" | — |
| 1985 | 72° | 41° | 56° | — | — |
| 1984 | 67° | 50° | 58° | — | — |
| 1983 | 58° | 33° | 45° | — | — |
| 1982 | 65° | 32° | 48° | — | — |
| 1981 | 53° | 43° | 48° | — | — |
| 1980 | 42° | 30° | 36° | — | — |
| 1979 | 50° | 24° | 37° | — | — |
| 1978 | 55° | 40° | 47° | — | — |
| 1977 | 60° | 39° | 50° | — | — |
| 1976 | 48° | 33° | 41° | — | — |
| 1975 | 66° | 38° | 52° | — | — |
| 1974 | 75° | 34° | 54° | — | — |
| 1973 | 67° | 43° | 55° | 0.51" | — |
| 1972 | 60° | 36° | 48° | 0.1" | — |
| 1971warmest | 81° | 58° | 69° | — | — |
55 years of data from JOLIET