Weather on August 15
Madison, WI
55 Years of Data
Avg High
80°F
Avg Low
57°F
Warmest
1988
82°F avg
Coldest
1979
52°F avg
About This Date
August 15th in Madison, WI typically brings warm summer weather, with average highs around 80°F and lows near 57°F. Over 55 years of records, the warmest August 15th was in 1988 (82°F average), while the coldest was 1979 (52°F) — a 30°F range across recorded history. Rain or other precipitation has occurred on about 25% of August 15th dates historically, with the wettest August 15th recording 5.72" of rain. The last decade has been 1.6°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.6°F warmer on this date compared to 20-30 years ago.
Planning for August 15th in Madison, WI? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.5°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 83° | 61° | 72° | — | — |
| 2024 | 84° | 67° | 75° | 0.38" | — |
| 2023 | 72° | 58° | 65° | 2.77" | — |
| 2022 | 69° | 56° | 62° | 0.03" | — |
| 2021 | 82° | 52° | 67° | — | — |
| 2020 | 88° | 64° | 76° | — | — |
| 2019 | 71° | 56° | 63° | — | — |
| 2018 | 86° | 65° | 75° | — | — |
| 2017 | 78° | 60° | 69° | — | — |
| 2016 | 83° | 61° | 72° | — | — |
| 2015 | 92° | 70° | 81° | — | — |
| 2014 | 73° | 45° | 59° | — | — |
| 2013 | 72° | 49° | 60° | — | — |
| 2012 | 81° | 57° | 69° | — | — |
| 2011 | 78° | 54° | 66° | — | — |
| 2010 | 86° | 66° | 76° | — | — |
| 2009 | 86° | 61° | 73° | — | — |
| 2008 | 79° | 54° | 66° | — | — |
| 2007 | 82° | 65° | 73° | 0.05" | — |
| 2006 | 79° | 54° | 66° | — | — |
| 2005 | 77° | 52° | 64° | — | — |
| 2004 | 73° | 46° | 60° | — | — |
| 2003 | 85° | 62° | 73° | — | — |
| 2002 | 79° | 58° | 68° | — | — |
| 2001 | 79° | 56° | 67° | 0.08" | — |
| 2000 | 86° | 68° | 77° | — | — |
| 1999 | 77° | 49° | 63° | — | — |
| 1998 | 86° | 60° | 73° | 0.89" | — |
| 1997 | 76° | 54° | 65° | 0.79" | — |
| 1996 | 83° | 57° | 70° | — | — |
| 1995 | 90° | 64° | 77° | — | — |
| 1994 | 73° | 48° | 61° | — | — |
| 1993 | 84° | 66° | 75° | 5.13" | — |
| 1992 | 75° | — | — | — | — |
| 1991 | 89° | 56° | 72° | — | — |
| 1990 | 82° | 55° | 69° | — | — |
| 1989 | 80° | 59° | 70° | 1.73" | — |
| 1988warmest | 99° | 66° | 82° | 0.89" | — |
| 1987 | 82° | 70° | 76° | 1.52" | — |
| 1986 | 82° | 61° | 71° | 0.05" | — |
| 1985 | 82° | 58° | 70° | — | — |
| 1984 | 80° | 54° | 67° | — | — |
| 1983 | 89° | 57° | 73° | — | — |
| 1982 | 80° | 52° | 66° | — | — |
| 1981 | 73° | 62° | 68° | 5.72" | — |
| 1980 | 79° | 51° | 65° | — | — |
| 1979coldest | 70° | 34° | 52° | — | — |
| 1978 | 90° | 69° | 79° | — | — |
| 1977 | 76° | 44° | 60° | — | — |
| 1976 | 69° | 42° | 56° | — | — |
| 1975 | 78° | 52° | 65° | — | — |
| 1974 | 81° | 54° | 67° | — | — |
| 1973 | 76° | 46° | 61° | — | — |
| 1972 | 89° | 62° | 76° | 2.41" | — |
| 1971 | 74° | 57° | 65° | — | — |
55 years of data from UW ARBORETUM - MADISON