Carroll County, IL
: September 2026 so far averaged 68.1°F in Carroll County, IL, the warmest 1 to 29 September in the county average since 2019, 5th 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
- 77.3°F
- Warmest since 2025
- 17th warmest of 76
- Low
- 48.6°F
- Warmest since 2025
- 29th warmest of 76
No measurable precipitation in the county average of Carroll County, IL for 4 days to Tuesday 29 September 2026 (county average from NOAA gridded data, 1951 to 2026).
- Normal range, 58 to 81.1°F
Every year as a table
Every 29 September low of the county average in Carroll County, IL since 1951: 48.6°F in 2026; the lowest is 30°F, in 1984.
| Year | High, °F | Low, °F |
|---|---|---|
| 2026 | 77.3 | 48.6 |
| 2025 | 85.6 | 54.6 |
| 2024 | 79.3 | 57 |
| 2023 | 71.4 | 55.5 |
| 2022 | 60.6 | 36.4 |
| 2021 | 82.4 | 52.7 |
| 2020 | 62.7 | 43.1 |
| 2019 | 64.2 | 53.7 |
| 2018 | 55.6 | 36.4 |
| 2017 | 73.1 | 43.8 |
| 2016 | 62.9 | 50.3 |
| 2015 | 81.2 | 58.2 |
| 2014 | 83 | 52.3 |
| 2013 | 81.6 | 47.4 |
| 2012 | 71.9 | 37.9 |
| 2011 | 70.3 | 46.9 |
| 2010 | 73.5 | 44.7 |
| 2009 | 60.4 | 45.7 |
| 2008 | 68.7 | 52.4 |
| 2007 | 77.4 | 47.8 |
| 2006 | 59.1 | 41 |
| 2005 | 66 | 38.7 |
| 2004 | 67.4 | 38.9 |
| 2003 | 56.5 | 34.4 |
| 2002 | 81.1 | 53 |
| 2001 | 62.8 | 42.3 |
| 2000 | 71.6 | 44.3 |
| 1999 | 56.6 | 43.6 |
| 1998 | 78.3 | 51.9 |
| 1997 | 74.1 | 52.4 |
| 1996 | 64.5 | 47.3 |
| 1995 | 80 | 50.9 |
| 1994 | 66.1 | 41.1 |
| 1993 | 58.9 | 38.3 |
| 1992 | 58.1 | 33.1 |
| 1991 | 67.4 | 37.2 |
| 1990 | 68.3 | 47.1 |
| 1989 | 73.9 | 40 |
| 1988 | 71.1 | 54.5 |
| 1987 | 76.1 | 51.1 |
| 1986 | 78.8 | 63.3 |
| 1985 | 73.8 | 48.5 |
| 1984 | 52.6 | 30 |
| 1983 | 82 | 54.3 |
| 1982 | 77 | 52.3 |
| 1981 | 63.7 | 39.3 |
| 1980 | 63.9 | 44.8 |
| 1979 | 79.8 | 51.7 |
| 1978 | 68.4 | 41.4 |
| 1977 | 70.8 | 48 |
| 1976 | 63.7 | 43.3 |
| 1975 | 66.9 | 42.6 |
| 1974 | 66.7 | 42.9 |
| 1973 | 70.4 | 60.4 |
| 1972 | 67 | 39.8 |
| 1971 | 83.6 | 55.4 |
| 1970 | 70.7 | 37.7 |
| 1969 | 70.2 | 44.7 |
| 1968 | 66 | 46.5 |
| 1967 | 52.6 | 30.8 |
| 1966 | 63.6 | 49.6 |
| 1965 | 74.2 | 52.3 |
| 1964 | 65.2 | 35 |
| 1963 | 66.9 | 43 |
| 1962 | 64.5 | 34.5 |
| 1961 | 59.8 | 34.1 |
| 1960 | 64.8 | 47.3 |
| 1959 | 63.1 | 45.4 |
| 1958 | 67.9 | 41.6 |
| 1957 | 67.3 | 32.4 |
| 1956 | 73.5 | 53.1 |
| 1955 | 71.3 | 52.6 |
| 1954 | 76.8 | 60.5 |
| 1953 | 91.6 | 56.1 |
| 1952 | 80.4 | 50.5 |
| 1951 | 57.5 | 31.5 |
The month
August 2026 averaged 71.4°F in Carroll County, IL, the warmest August in the county average since 2023, 45th warmest of 132 (county average from NOAA's monthly county data, 1895 to 2026).
The month in words
- Tuesday 29 September 2026: a high of 77.3°F averaged over Carroll County, IL, the warmest 29 September in the county average since 2025, 17th warmest of 76 (county average from NOAA gridded data, 1951 to 2026).
- Tuesday 29 September 2026: a low of 48.6°F averaged over Carroll County, IL, the warmest 29 September night in the county average since 2025, 29th warmest of 76 (county average from NOAA gridded data, 1951 to 2026).
- Days of the month without a value
- 0
Nearby
Rockford, IL 43.4 mi, the nearest city with its own station