Weather on October 17
Joliet, IL
55 Years of Data
Avg High
63°F
Avg Low
42°F
Warmest
2016
74°F avg
Coldest
1992
38°F avg
About This Date
October 17th in Joliet, IL typically brings mild fall weather, with average highs around 63°F and lows near 42°F. Over 54 years of records, the warmest October 17th was in 2016 (74°F average), while the coldest was 1992 (38°F) — a 36°F range across recorded history. Rain or other precipitation has occurred on about 35% of October 17th dates historically, with the wettest October 17th recording 5.05" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for October 17th in Joliet, IL? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Cooling Trend
0.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 77° | 56° | 67° | — | — |
| 2024 | 57° | 34° | 45° | — | — |
| 2023 | 50° | 41° | 46° | — | — |
| 2022 | 55° | 33° | 44° | — | — |
| 2021 | 59° | 40° | 49° | — | — |
| 2020 | 55° | 34° | 44° | — | — |
| 2019 | 53° | 37° | 45° | — | — |
| 2018 | 58° | 33° | 45° | — | — |
| 2017 | 63° | 40° | 51° | — | — |
| 2016warmest | 83° | 66° | 74° | — | — |
| 2015 | 56° | 33° | 44° | — | — |
| 2014 | 56° | 50° | 53° | — | — |
| 2013 | 53° | 47° | 50° | 0.03" | — |
| 2012 | 69° | 41° | 55° | — | — |
| 2011 | 59° | 42° | 51° | 0.05" | — |
| 2010 | 72° | 29° | 50° | — | — |
| 2009 | 45° | 40° | 42° | 0.1" | — |
| 2008 | 58° | 42° | 50° | — | — |
| 2007 | 67° | 49° | 58° | 0.1" | — |
| 2006 | 74° | 31° | 52° | 2.49" | — |
| 2005 | 64° | 44° | 54° | — | — |
| 2004 | 47° | 30° | 38° | — | — |
| 2003 | 56° | 36° | 46° | 0.08" | — |
| 2002 | 52° | 40° | 46° | — | — |
| 2001 | 52° | 33° | 42° | — | — |
| 2000 | 62° | 46° | 54° | — | — |
| 1999 | 68° | 46° | 57° | 0.15" | — |
| 1998 | 80° | 56° | 68° | 0.08" | — |
| 1997 | 56° | 38° | 47° | — | — |
| 1996 | 64° | 58° | 61° | 1.07" | — |
| 1995 | 61° | 33° | 47° | — | — |
| 1994 | 76° | 58° | 67° | — | — |
| 1993 | 64° | 51° | 58° | 1.6" | — |
| 1992coldest | 46° | 30° | 38° | — | — |
| 1991 | 74° | 43° | 58° | — | — |
| 1990 | 67° | 48° | 57° | 0.03" | — |
| 1989 | 67° | 45° | 56° | 0.76" | — |
| 1988 | 75° | 53° | 64° | 0.25" | — |
| 1987 | 74° | 47° | 60° | 1.45" | — |
| 1986 | 63° | 40° | 51° | 0.03" | — |
| 1985 | 66° | 36° | 51° | — | — |
| 1984 | 72° | 47° | 59° | 0.43" | — |
| 1983 | 70° | 36° | 53° | — | — |
| 1982 | 54° | 32° | 43° | — | — |
| 1981 | 63° | 44° | 53° | — | — |
| 1980 | 77° | 52° | 64° | 5.05" | — |
| 1979 | 63° | 50° | 56° | 0.05" | — |
| 1978 | 55° | 31° | 43° | 0.08" | — |
| 1977 | 52° | 31° | 41° | — | — |
| 1975 | 61° | 39° | 50° | — | — |
| 1974 | 67° | 46° | 56° | — | — |
| 1973 | 54° | 33° | 43° | — | — |
| 1972 | 68° | 34° | 51° | — | — |
| 1971 | 78° | 50° | 64° | — | — |
54 years of data from JOLIET