Will County, IL
: September 2026 so far averaged 69.8°F in Will County, IL, the warmest 1 to 29 September in the county average since 2005, 3rd warmest of 76 (county average from NOAA gridded data, 1951 to 2026).
Last updated . This page normally updates every day; the latest update is late.
- High
- 75.3°F
- Warmest since 2025
- 22nd warmest of 76
- Low
- 47.7°F
- Coldest since 2022
- 38th coldest of 76
No measurable precipitation in the county average of Will County, IL for 7 days to Tuesday 29 September 2026 (county average from NOAA gridded data, 1951 to 2026).
- Normal range, 38.9 to 53.8°F
Every year as a table
Every 29 September high of the county average in Will County, IL since 1951: 75.3°F in 2026; the highest is 93.3°F, in 1953.
| Year | High, °F | Low, °F |
|---|---|---|
| 2026 | 75.3 | 47.7 |
| 2025 | 84.1 | 57.2 |
| 2024 | 72.1 | 63.5 |
| 2023 | 71.8 | 54 |
| 2022 | 62.2 | 38.1 |
| 2021 | 78.2 | 54 |
| 2020 | 63.8 | 42.9 |
| 2019 | 67.7 | 59.7 |
| 2018 | 66.3 | 39.4 |
| 2017 | 72.3 | 49.6 |
| 2016 | 61.2 | 51.1 |
| 2015 | 78.1 | 61.6 |
| 2014 | 80.5 | 52.5 |
| 2013 | 83.8 | 50.9 |
| 2012 | 69.2 | 44.4 |
| 2011 | 65.1 | 48.8 |
| 2010 | 71.3 | 45.5 |
| 2009 | 63.7 | 47.9 |
| 2008 | 74.4 | 54.1 |
| 2007 | 75.3 | 48.8 |
| 2006 | 59.7 | 38.9 |
| 2005 | 75.3 | 43.2 |
| 2004 | 67.2 | 46.7 |
| 2003 | 57.5 | 38.3 |
| 2002 | 77.7 | 51.3 |
| 2001 | 56.8 | 45.2 |
| 2000 | 67.1 | 43.9 |
| 1999 | 70.1 | 52.4 |
| 1998 | 79.2 | 53.8 |
| 1997 | 71.7 | 52 |
| 1996 | 63.8 | 46.4 |
| 1995 | 81.9 | 51.2 |
| 1994 | 65.3 | 42.9 |
| 1993 | 60.8 | 38.9 |
| 1992 | 62.6 | 36.2 |
| 1991 | 66.5 | 41.9 |
| 1990 | 70.2 | 53.5 |
| 1989 | 73.9 | 43.3 |
| 1988 | 77.2 | 56.9 |
| 1987 | 78.8 | 57 |
| 1986 | 84.5 | 66.4 |
| 1985 | 76.5 | 47.7 |
| 1984 | 57.8 | 35.3 |
| 1983 | 80.8 | 51.8 |
| 1982 | 76.5 | 51 |
| 1981 | 65.4 | 42.3 |
| 1980 | 69.6 | 47.4 |
| 1979 | 82.9 | 53.3 |
| 1978 | 67 | 42 |
| 1977 | 70.7 | 46.5 |
| 1976 | 65.6 | 45 |
| 1975 | 72.3 | 47.2 |
| 1974 | 67.8 | 47.2 |
| 1973 | 74.9 | 62.6 |
| 1972 | 74.9 | 49.9 |
| 1971 | 85.5 | 64.9 |
| 1970 | 65.4 | 36.9 |
| 1969 | 70.4 | 43.4 |
| 1968 | 70.6 | 46.9 |
| 1967 | 52.1 | 39 |
| 1966 | 65.5 | 51 |
| 1965 | 76.8 | 52.8 |
| 1964 | 64.3 | 36.5 |
| 1963 | 71.8 | 46.9 |
| 1962 | 65.6 | 37.4 |
| 1961 | 62.8 | 34.7 |
| 1960 | 70.8 | 47.6 |
| 1959 | 71.8 | 54.9 |
| 1958 | 67.9 | 42.2 |
| 1957 | 68.2 | 36 |
| 1956 | 80.6 | 51.3 |
| 1955 | 71.5 | 50.6 |
| 1954 | 78.7 | 62.4 |
| 1953 | 93.3 | 54.6 |
| 1952 | 82 | 52.9 |
| 1951 | 59.1 | 33.2 |
The month
August 2026 averaged 72.4°F in Will County, IL, the warmest August in the county average since 2024, tied 50th warmest of 132 (with 2024, 2012, 2000 and 3 other years) (county average from NOAA's monthly county data, 1895 to 2026).
The month in words
- Tuesday 29 September 2026: a high of 75.3°F averaged over Will County, IL, the warmest 29 September in the county average since 2025, tied 22nd warmest of 76 (with 2007 and 2005) (county average from NOAA gridded data, 1951 to 2026).
- Tuesday 29 September 2026: a low of 47.7°F averaged over Will County, IL, the coldest 29 September night in the county average since 2022, tied 38th coldest of 76 (with 1985) (county average from NOAA gridded data, 1951 to 2026).
- Days of the month without a value
- 0
Nearby
Chicago, IL 35.4 mi, the nearest city with its own station