Weather on September 7
Joliet, IL
55 Years of Data
Avg High
80°F
Avg Low
57°F
Warmest
1990
82°F avg
Coldest
2017
55°F avg
About This Date
September 7th in Joliet, IL typically brings warm fall weather, with average highs around 80°F and lows near 57°F. Over 54 years of records, the warmest September 7th was in 1990 (82°F average), while the coldest was 2017 (55°F) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 28% of September 7th dates historically, with the wettest September 7th recording 3.4" of rain. The last decade has been 5.0°F cooler on this date compared to 20-30 years ago.
The last decade has been 5.0°F cooler on this date compared to 20-30 years ago.
Planning for September 7th in Joliet, IL? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 69° | 40° | 55° | — | — |
| 2024 | 72° | 49° | 60° | — | — |
| 2023 | 77° | 66° | 72° | 2.54" | — |
| 2022 | 80° | 60° | 70° | — | — |
| 2021 | 84° | 55° | 70° | — | — |
| 2020 | 81° | 57° | 69° | 2.16" | — |
| 2019 | 72° | 55° | 63° | — | — |
| 2018 | 70° | 64° | 67° | 1.02" | — |
| 2017coldest | 64° | 47° | 55° | — | — |
| 2016 | 91° | 72° | 81° | — | — |
| 2015 | 91° | 69° | 80° | — | — |
| 2014 | 74° | 55° | 64° | — | — |
| 2013 | 84° | 61° | 72° | — | — |
| 2012 | 84° | 66° | 75° | — | — |
| 2011 | 67° | 50° | 58° | — | — |
| 2010 | 84° | 66° | 75° | — | — |
| 2009 | 79° | 49° | 64° | — | — |
| 2008 | 73° | 54° | 63° | 0.03" | — |
| 2007 | 90° | 63° | 76° | — | — |
| 2006 | 81° | 56° | 68° | — | — |
| 2005 | 86° | 63° | 74° | — | — |
| 2004 | 80° | 57° | 69° | — | — |
| 2003 | 79° | 53° | 66° | — | — |
| 2002 | 87° | 60° | 74° | — | — |
| 2001 | 86° | 62° | 74° | 1.73" | — |
| 2000 | 77° | 52° | 64° | — | — |
| 1999 | 76° | 54° | 65° | — | — |
| 1998 | 94° | 57° | 75° | 3.4" | — |
| 1997 | 86° | 63° | 74° | — | — |
| 1996 | 85° | 70° | 77° | — | — |
| 1995 | 88° | 64° | 76° | — | — |
| 1994 | 75° | 52° | 63° | — | — |
| 1993 | 69° | 50° | 60° | 0.13" | — |
| 1992 | 81° | 65° | 73° | — | — |
| 1991 | 90° | 58° | 74° | — | — |
| 1990warmest | 95° | 70° | 82° | 1.96" | — |
| 1989 | 74° | 68° | 71° | 3.4" | — |
| 1988 | 70° | 44° | 57° | — | — |
| 1987 | 87° | 63° | 75° | — | — |
| 1986 | 73° | 40° | 56° | — | — |
| 1985 | 87° | 70° | 78° | 0.81" | — |
| 1984 | 75° | 48° | 62° | 0.13" | — |
| 1983 | 72° | 52° | 62° | 0.23" | — |
| 1982 | 66° | 54° | 60° | 1.3" | — |
| 1981 | 75° | 55° | 65° | — | — |
| 1980 | 85° | 56° | 70° | 1.3" | — |
| 1979 | 82° | 52° | 67° | — | — |
| 1978 | 89° | 60° | 75° | — | — |
| 1977 | 76° | 56° | 66° | — | — |
| 1976 | 82° | 56° | 69° | — | — |
| 1975 | 74° | 50° | 62° | — | — |
| 1974 | 80° | 54° | 67° | — | — |
| 1973 | 81° | 50° | 65° | — | — |
| 1971 | 92° | 66° | 79° | 0.51" | — |
54 years of data from JOLIET