Mercer County, MO
: September 2026 so far averaged 72.7°F in Mercer County, MO, 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 76.9°F averaged over Mercer County, MO, the warmest 29 September in the county average since 2025, tied 25th warmest of 76 (with 1990) (county average from NOAA gridded data, 1951 to 2026).
- Tuesday 29 September 2026: a low of 57°F averaged over Mercer County, MO, the warmest 29 September night in the county average since 2025, 14th warmest of 76 (county average from NOAA gridded data, 1951 to 2026).
- No measurable precipitation in the county average of Mercer County, MO for 1 day to Tuesday 29 September 2026 (county average from NOAA gridded data, 1951 to 2026).
The month
- August 2026 averaged 75°F in Mercer County, MO, the warmest August in the county average since 2018, tied 36th warmest of 132 (with 2018, 2006 and 1973) (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 | 76.9 | 57 |
| 2025 | 87.1 | 59.1 |
| 2024 | 83.9 | 54 |
| 2023 | 80.5 | 54.7 |
| 2022 | 66 | 38.4 |
| 2021 | 90.2 | 57.2 |
| 2020 | 61.7 | 44.4 |
| 2019 | 64.9 | 56.3 |
| 2018 | 53.3 | 44.8 |
| 2017 | 76.4 | 46.7 |
| 2016 | 61.8 | 47.4 |
| 2015 | 83.3 | 57.7 |
| 2014 | 81.6 | 55.6 |
| 2013 | 68.8 | 43.9 |
| 2012 | 73.3 | 41.8 |
| 2011 | 79.7 | 54.3 |
| 2010 | 72.8 | 49.1 |
| 2009 | 64.4 | 42.1 |
| 2008 | 78.7 | 59.1 |
| 2007 | 76.8 | 46.4 |
| 2006 | 60.9 | 42.7 |
| 2005 | 63.3 | 36.1 |
| 2004 | 69.7 | 39.8 |
| 2003 | 60.3 | 34.8 |
| 2002 | 84.7 | 52.7 |
| 2001 | 71.5 | 41.9 |
| 2000 | 78.3 | 48.5 |
| 1999 | 60.8 | 43.3 |
| 1998 | 81.5 | 62.5 |
| 1997 | 76.5 | 51.1 |
| 1996 | 69.7 | 45.9 |
| 1995 | 78.7 | 51 |
| 1994 | 73.7 | 44.9 |
| 1993 | 67.4 | 36.4 |
| 1992 | 60 | 35 |
| 1991 | 74.9 | 43.1 |
| 1990 | 76.9 | 50.9 |
| 1989 | 75.3 | 41.7 |
| 1988 | 71.4 | 61.6 |
| 1987 | 72.6 | 52.2 |
| 1986 | 83.4 | 64 |
| 1985 | 56.9 | 44.1 |
| 1984 | 56.4 | 32 |
| 1983 | 85.3 | 59.2 |
| 1982 | 80.5 | 60.3 |
| 1981 | 73.4 | 45.9 |
| 1980 | 73 | 47.8 |
| 1979 | 82.6 | 52.2 |
| 1978 | 70.9 | 44.1 |
| 1977 | 72.8 | 50.3 |
| 1976 | 60 | 47.5 |
| 1975 | 67.6 | 48.7 |
| 1974 | 61.9 | 36.2 |
| 1973 | 71.1 | 53.5 |
| 1972 | 73.9 | 42.1 |
| 1971 | 88.5 | 64.5 |
| 1970 | 76.7 | 43.6 |
| 1969 | 77.1 | 54 |
| 1968 | 74.6 | 52.2 |
| 1967 | 59.9 | 33.2 |
| 1966 | 66.3 | 48.6 |
| 1965 | 77.2 | 55.3 |
| 1964 | 68.7 | 39.7 |
| 1963 | 74.6 | 44.4 |
| 1962 | 69.5 | 41.5 |
| 1961 | 66.9 | 41.9 |
| 1960 | 68.5 | 49.2 |
| 1959 | 63.4 | 40.9 |
| 1958 | 72.1 | 44.9 |
| 1957 | 70.2 | 37 |
| 1956 | 85.1 | 50.1 |
| 1955 | 79.8 | 57.4 |
| 1954 | 81.2 | 60.5 |
| 1953 | 96.2 | 64.7 |
| 1952 | 87.1 | 55.2 |
| 1951 | 60.4 | 36.6 |
Nearby
Des Moines, IA 77.0 mi, the nearest city with its own station