Weather on October 21
Madison, WI
55 Years of Data
Avg High
60°F
Avg Low
37°F
Warmest
1979
72°F avg
Coldest
1982
31°F avg
About This Date
October 21st in Madison, WI typically brings mild fall weather, with average highs around 60°F and lows near 37°F. Over 55 years of records, the warmest October 21st was in 1979 (72°F average), while the coldest was 1982 (31°F) — a 41°F range across recorded history. Precipitation has occurred on 27% of recorded October 21st dates, with snow falling 2% of the time. The last decade has been 4.7°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.7°F warmer on this date compared to 20-30 years ago.
Planning for October 21st in Madison, WI? Great weather for outdoor activities.
Warming Trend
0.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 67° | 40° | 53° | 0.25" | — |
| 2024 | 83° | 45° | 64° | — | — |
| 2023 | 62° | 38° | 50° | — | — |
| 2022 | 67° | 37° | 52° | — | — |
| 2021 | 72° | 47° | 59° | 0.25" | — |
| 2020 | 48° | 40° | 44° | 0.36" | — |
| 2019 | 65° | 47° | 56° | 0.46" | — |
| 2018 | 46° | 22° | 34° | — | — |
| 2017 | 78° | 51° | 65° | — | — |
| 2016 | 52° | 35° | 43° | — | — |
| 2015 | 74° | 55° | 64° | — | — |
| 2014 | 63° | 43° | 53° | — | — |
| 2013 | 49° | 35° | 42° | 0.25" | — |
| 2012 | 60° | 31° | 45° | — | — |
| 2011 | 50° | 29° | 39° | — | — |
| 2010 | 72° | 35° | 53° | — | — |
| 2009 | 54° | 47° | 50° | — | — |
| 2008 | 60° | 29° | 44° | 0.08" | — |
| 2007 | 74° | 51° | 62° | — | — |
| 2006 | 52° | 31° | 41° | — | — |
| 2005 | 55° | 31° | 43° | — | — |
| 2004 | 53° | 36° | 44° | — | — |
| 2003 | 79° | 52° | 65° | — | — |
| 2002 | 49° | 28° | 38° | — | — |
| 2001 | 66° | 42° | 54° | — | — |
| 2000 | 78° | 40° | 59° | — | — |
| 1999 | 51° | 29° | 40° | — | — |
| 1998 | 61° | 36° | 48° | — | — |
| 1997 | 54° | 24° | 39° | — | — |
| 1996 | 62° | 23° | 43° | — | — |
| 1995 | 43° | 34° | 38° | 0.08" | 0.1" |
| 1994 | 66° | 34° | 50° | — | — |
| 1993 | 50° | 34° | 42° | 0.64" | — |
| 1992 | 54° | 34° | 44° | — | — |
| 1991 | 60° | 35° | 48° | — | — |
| 1990 | 63° | 40° | 51° | 0.3" | — |
| 1989 | 55° | 31° | 43° | 0.2" | — |
| 1988 | 49° | 25° | 37° | 1.12" | — |
| 1987 | 46° | 30° | 38° | — | — |
| 1986 | 75° | 44° | 60° | — | — |
| 1985 | 56° | 48° | 52° | — | — |
| 1984 | 59° | 41° | 50° | 1.27" | — |
| 1983 | 42° | 42° | 42° | 0.25" | — |
| 1982coldest | 42° | 19° | 31° | — | — |
| 1981 | 60° | 41° | 51° | — | — |
| 1980 | 59° | — | — | — | — |
| 1979warmest | 78° | 67° | 72° | — | — |
| 1978 | 75° | 30° | 53° | — | — |
| 1977 | 65° | 42° | 53° | — | — |
| 1976 | 40° | — | — | — | — |
| 1975 | 72° | 35° | 53° | — | — |
| 1974 | 50° | 23° | 37° | — | — |
| 1973 | 61° | 28° | 44° | — | — |
| 1972 | 48° | 32° | 40° | 1.8" | — |
| 1971 | 73° | 59° | 66° | 0.05" | — |
55 years of data from UW ARBORETUM - MADISON