Marshall County, IL
: September 2026 so far averaged 70.8°F in Marshall County, IL, the warmest 1 to 29 September in the county average since 1978, 2nd 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
- 76.6°F
- Warmest since 2025
- 24th warmest of 76
- Low
- 47.1°F
- Coldest since 2022
- 37th coldest of 76
No measurable precipitation in the county average of Marshall County, IL for 6 days to Tuesday 29 September 2026 (county average from NOAA gridded data, 1951 to 2026).
- Normal range, 39.4 to 54.2°F
Every year as a table
Every 29 September high of the county average in Marshall County, IL since 1951: 76.6°F in 2026; the highest is 95.6°F, in 1953.
| Year | High, °F | Low, °F |
|---|---|---|
| 2026 | 76.6 | 47.1 |
| 2025 | 89.6 | 55.5 |
| 2024 | 76.4 | 59.1 |
| 2023 | 74.1 | 54.7 |
| 2022 | 64.1 | 35.7 |
| 2021 | 85.1 | 55.1 |
| 2020 | 65.1 | 44.3 |
| 2019 | 70.9 | 59.5 |
| 2018 | 64.5 | 39.6 |
| 2017 | 74.1 | 45.8 |
| 2016 | 63.7 | 49.8 |
| 2015 | 80 | 61.4 |
| 2014 | 83.5 | 54.1 |
| 2013 | 83.6 | 50.1 |
| 2012 | 71.5 | 41 |
| 2011 | 69.8 | 46.9 |
| 2010 | 75.5 | 45.9 |
| 2009 | 62.8 | 47.1 |
| 2008 | 77.5 | 53.5 |
| 2007 | 80.7 | 47.5 |
| 2006 | 61.1 | 41 |
| 2005 | 72.9 | 42.2 |
| 2004 | 70.6 | 41.7 |
| 2003 | 58.1 | 36.2 |
| 2002 | 81.9 | 54.1 |
| 2001 | 59.7 | 42 |
| 2000 | 73.1 | 45.7 |
| 1999 | 62.1 | 48.5 |
| 1998 | 82.6 | 55 |
| 1997 | 73.8 | 51.1 |
| 1996 | 66.4 | 44.6 |
| 1995 | 80.4 | 51.2 |
| 1994 | 69.6 | 44 |
| 1993 | 61.5 | 37.6 |
| 1992 | 61.3 | 35.2 |
| 1991 | 71 | 43.9 |
| 1990 | 71.9 | 49.4 |
| 1989 | 74.3 | 41 |
| 1988 | 80.1 | 57.1 |
| 1987 | 80.4 | 53.9 |
| 1986 | 85.9 | 66.9 |
| 1985 | 75.9 | 47.8 |
| 1984 | 55.7 | 32.7 |
| 1983 | 82.7 | 54.3 |
| 1982 | 80.1 | 53.2 |
| 1981 | 66.8 | 43.1 |
| 1980 | 71.9 | 46.5 |
| 1979 | 83.2 | 54 |
| 1978 | 70.9 | 42.8 |
| 1977 | 72.8 | 46.7 |
| 1976 | 64.4 | 46.9 |
| 1975 | 71.5 | 47.5 |
| 1974 | 68.6 | 46.6 |
| 1973 | 77.4 | 65 |
| 1972 | 75.6 | 47.2 |
| 1971 | 86.4 | 64.4 |
| 1970 | 71.2 | 40.3 |
| 1969 | 75.9 | 46.8 |
| 1968 | 70.5 | 48.4 |
| 1967 | 53.9 | 33.6 |
| 1966 | 66.6 | 50.4 |
| 1965 | 76.9 | 52.6 |
| 1964 | 65.8 | 37.6 |
| 1963 | 72.9 | 43.8 |
| 1962 | 68.2 | 36.4 |
| 1961 | 65.5 | 36.6 |
| 1960 | 70.2 | 47.9 |
| 1959 | 67.7 | 49.7 |
| 1958 | 69 | 39.8 |
| 1957 | 69.4 | 36.1 |
| 1956 | 79.8 | 53.6 |
| 1955 | 74.6 | 53.5 |
| 1954 | 78.8 | 61.8 |
| 1953 | 95.6 | 61.1 |
| 1952 | 85 | 53.7 |
| 1951 | 61.2 | 33.8 |
The month
August 2026 averaged 73°F in Marshall County, IL, the warmest August in the county average since 2021, tied 46th warmest of 132 (with 1960 and 1905) (county average from NOAA's monthly county data, 1895 to 2026).
The month in words
- Tuesday 29 September 2026: a high of 76.6°F averaged over Marshall County, IL, the warmest 29 September in the county average since 2025, 24th warmest of 76 (county average from NOAA gridded data, 1951 to 2026).
- Tuesday 29 September 2026: a low of 47.1°F averaged over Marshall County, IL, the coldest 29 September night in the county average since 2022, tied 37th coldest of 76 (with 2009) (county average from NOAA gridded data, 1951 to 2026).
- Days of the month without a value
- 0
Nearby
Peoria, IL 30.8 mi, the nearest city with its own station