Macoupin County, IL
: September 2026 so far averaged 76.1°F in Macoupin County, IL, the warmest 1 to 29 September in the county average since the data begin in 1951 (county average from NOAA gridded data, 1951 to 2026).
Last updated . This page normally updates every day; the latest update is late.
- Tuesday 29 September 2026: a high of 81.1°F averaged over Macoupin County, IL, the warmest 29 September in the county average since 2025, 21st warmest of 76 (county average from NOAA gridded data, 1951 to 2026).
- Tuesday 29 September 2026: a low of 49.4°F averaged over Macoupin County, IL, the warmest 29 September night in the county average since 2025, 38th warmest of 76 (county average from NOAA gridded data, 1951 to 2026).
- No measurable precipitation in the county average of Macoupin County, IL for 2 days to Tuesday 29 September 2026 (county average from NOAA gridded data, 1951 to 2026).
The month
- August 2026 averaged 75.6°F in Macoupin County, IL, the warmest August in the county average since 2021, tied 47th warmest of 132 (with 2001) (county average from NOAA's monthly county data, 1895 to 2026).
- Days of the month without a value
- 0
Every year on this date
- Above the normal range
- In it
- Below it
- Normal range
- This year and the extreme
Every year as a table
| Year | High, °F | Low, °F |
|---|---|---|
| 2026 | 81.1 | 49.4 |
| 2025 | 88.6 | 54.8 |
| 2024 | 76 | 63.7 |
| 2023 | 79.9 | 57.7 |
| 2022 | 64.7 | 39.5 |
| 2021 | 89.2 | 58.7 |
| 2020 | 66 | 46.7 |
| 2019 | 84.8 | 65.5 |
| 2018 | 74.3 | 47.3 |
| 2017 | 74 | 46.6 |
| 2016 | 63.4 | 52 |
| 2015 | 82 | 62.8 |
| 2014 | 84.5 | 53.9 |
| 2013 | 83.1 | 54.4 |
| 2012 | 71 | 46.1 |
| 2011 | 72.5 | 50.1 |
| 2010 | 74.7 | 48.3 |
| 2009 | 66.5 | 47.1 |
| 2008 | 82 | 56.9 |
| 2007 | 83.8 | 50.5 |
| 2006 | 63.3 | 42.5 |
| 2005 | 77.2 | 43.6 |
| 2004 | 72.4 | 41.3 |
| 2003 | 61 | 37.6 |
| 2002 | 81.4 | 52.9 |
| 2001 | 64.3 | 43.6 |
| 2000 | 73.5 | 46.2 |
| 1999 | 76.2 | 51.4 |
| 1998 | 84.4 | 62.6 |
| 1997 | 73 | 52.4 |
| 1996 | 69.2 | 43.7 |
| 1995 | 79.3 | 50.3 |
| 1994 | 72.2 | 45.1 |
| 1993 | 68.5 | 40.9 |
| 1992 | 65.2 | 37.7 |
| 1991 | 78.7 | 51.1 |
| 1990 | 79.1 | 58.5 |
| 1989 | 74.2 | 41.5 |
| 1988 | 82.1 | 58.7 |
| 1987 | 79.8 | 57.7 |
| 1986 | 89.7 | 70.2 |
| 1985 | 75.7 | 47.2 |
| 1984 | 58.8 | 38.6 |
| 1983 | 85.4 | 52.8 |
| 1982 | 78.9 | 55.1 |
| 1981 | 71.4 | 47.6 |
| 1980 | 74.9 | 45.7 |
| 1979 | 85.4 | 58.4 |
| 1978 | 71.7 | 43.2 |
| 1977 | 74 | 49.7 |
| 1976 | 70.1 | 48.5 |
| 1975 | 71.2 | 48.8 |
| 1974 | 68 | 45.8 |
| 1973 | 80 | 63.5 |
| 1972 | 80.7 | 53.9 |
| 1971 | 89.1 | 68.4 |
| 1970 | 73.1 | 47 |
| 1969 | 75.4 | 48.8 |
| 1968 | 77.4 | 50.2 |
| 1967 | 58.2 | 38.1 |
| 1966 | 69.5 | 49.2 |
| 1965 | 78 | 51.5 |
| 1964 | 69.9 | 40.6 |
| 1963 | 78 | 48.6 |
| 1962 | 69.9 | 37.9 |
| 1961 | 70.9 | 42.4 |
| 1960 | 78.5 | 48.3 |
| 1959 | 77.9 | 55.9 |
| 1958 | 68.4 | 42.8 |
| 1957 | 71.4 | 37.8 |
| 1956 | 85.3 | 50.8 |
| 1955 | 85 | 59.4 |
| 1954 | 83.7 | 66 |
| 1953 | 98.5 | 61.8 |
| 1952 | 90.4 | 53.2 |
| 1951 | 63.3 | 35.9 |
Nearby
Springfield, IL 42.1 mi, the nearest city with its own station