Weather on October 21
Louisville, KY
55 Years of Data
Avg High
68°F
Avg Low
45°F
Warmest
1979
76°F avg
Coldest
1974
40°F avg
About This Date
October 21st in Louisville, KY typically brings mild fall weather, with average highs around 68°F and lows near 45°F. Over 55 years of records, the warmest October 21st was in 1979 (76°F average), while the coldest was 1974 (40°F) — a 36°F range across recorded history. Rain or other precipitation has occurred on about 18% of October 21st dates historically, with the wettest October 21st recording 1.04" of rain. The last decade has been 2.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.2°F warmer on this date compared to 20-30 years ago.
Planning for October 21st in Louisville, KY? Great weather for outdoor activities.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 69° | 50° | 60° | — | — |
| 2024 | 76° | 39° | 57° | — | — |
| 2023 | 75° | 39° | 57° | — | — |
| 2022 | 73° | 41° | 57° | — | — |
| 2021 | 75° | 50° | 63° | — | — |
| 2020 | 81° | 60° | 70° | — | — |
| 2019 | 75° | 58° | 66° | 0.05" | — |
| 2018 | 55° | 32° | 44° | — | — |
| 2017 | 77° | 51° | 64° | — | — |
| 2016 | 60° | 45° | 52° | 0.05" | — |
| 2015 | 76° | 45° | 60° | — | — |
| 2014 | 62° | 43° | 52° | — | — |
| 2013 | 68° | 40° | 54° | — | — |
| 2012 | 72° | 41° | 56° | — | — |
| 2011 | 60° | 36° | 48° | — | — |
| 2010 | 69° | 44° | 57° | — | — |
| 2009 | 67° | 43° | 55° | — | — |
| 2008 | 62° | 48° | 55° | — | — |
| 2007 | 80° | 49° | 64° | — | — |
| 2006 | 62° | 36° | 49° | — | — |
| 2005 | 67° | 50° | 58° | 0.48" | — |
| 2004 | 63° | 57° | 60° | — | — |
| 2003 | 75° | 59° | 67° | — | — |
| 2002 | 62° | 43° | 52° | — | — |
| 2001 | 75° | 48° | 62° | — | — |
| 2000 | 68° | 55° | 62° | 0.05" | — |
| 1999 | 66° | 36° | 51° | — | — |
| 1998 | 57° | 43° | 50° | 0.08" | — |
| 1997 | 61° | 44° | 52° | — | — |
| 1996 | 63° | 45° | 54° | — | — |
| 1995 | 50° | 39° | 45° | — | — |
| 1994 | 72° | 45° | 58° | — | — |
| 1993 | 68° | 40° | 54° | — | — |
| 1992 | 74° | 47° | 60° | — | — |
| 1991 | 72° | 36° | 54° | — | — |
| 1990 | 76° | 48° | 62° | 0.46" | — |
| 1989 | 65° | 41° | 53° | — | — |
| 1988 | 51° | 47° | 49° | 1.04" | — |
| 1987 | 51° | 32° | 42° | — | — |
| 1986 | 74° | 41° | 57° | — | — |
| 1985 | 62° | 55° | 59° | — | — |
| 1984 | 70° | 55° | 62° | 0.86" | — |
| 1983 | 64° | 56° | 60° | 0.25" | — |
| 1982 | 54° | 35° | 44° | — | — |
| 1981 | 72° | 46° | 59° | — | — |
| 1980 | 75° | 45° | 60° | — | — |
| 1979warmest | 86° | 67° | 76° | — | — |
| 1978 | 77° | 42° | 60° | — | — |
| 1977 | 72° | 40° | 56° | — | — |
| 1976 | 56° | 34° | 45° | — | — |
| 1975 | 79° | 49° | 64° | — | — |
| 1974coldest | 52° | 29° | 40° | — | — |
| 1973 | 70° | 45° | 57° | — | — |
| 1972 | 59° | 45° | 52° | — | — |
| 1971 | 68° | 63° | 65° | 0.99" | — |
55 years of data from LOUISVILLE BOWMAN FLD