August weather in Madison, WI
The average temperature in Madison in August is 70.0°F (59.4°F–80.6°F). Average precipitation: 4.08 inches.
August is a summer month in Madison, and is warmer than the annual average of 47.2°F. Daily temperatures swing about 21.2°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 13h 46m. For travel, August is a comfortable month to visit.
Avg High
80.6°F
Avg Low
59.4°F
Precipitation
4.08 in
Daylight
13h 46m
August records in Madison
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 98.1°F (1988) | 41.0°F (1976) | 0.41 in (1995) |
| August 2 | 108.0°F (1988) | 42.1°F (1976) | 6.00 in (2001) |
| August 3 | 102.0°F (1988) | 43.0°F (1976) | 0.60 in (2008) |
| August 4 | 100.0°F (1988) | 39.0°F (1978) | 1.31 in (1994) |
| August 5 | 98.1°F (1988) | 44.1°F (1974) | 2.00 in (2007) |
| August 6 | 89.1°F (1984) | 39.9°F (1992) | 2.30 in (2000) |
| August 7 | 93.9°F (1988) | 37.0°F (1976) | 1.94 in (2022) |
| August 8 | 96.1°F (1988) | 37.0°F (1992) | 1.95 in (1980) |
| August 9 | 95.0°F (1983) | 39.0°F (1976) | 0.80 in (1979) |
| August 10 | 95.0°F (1992) | 44.1°F (1982) | 2.52 in (2025) |
| August 11 | 91.9°F (1979) | 41.0°F (1982) | 2.08 in (1994) |
| August 12 | 98.1°F (1995) | 37.9°F (1979) | 1.59 in (2025) |
| August 13 | 98.1°F (1988) | 42.1°F (1982) | 1.06 in (2002) |
| August 14 | 93.0°F (1993) | 39.0°F (1982) | 2.45 in (2010) |
| August 15 | 99.0°F (1988) | 34.0°F (1979) | 2.25 in (1981) |
| August 16 | 98.1°F (1988) | 32.0°F (1979) | 1.33 in (1977) |
| August 17 | 104.0°F (1988) | 39.9°F (1976) | 1.60 in (1987) |
| August 18 | 105.1°F (1988) | 39.0°F (1977) | 1.25 in (1979) |
| August 19 | 93.0°F (1972) | 43.0°F (1981) | 2.01 in (2007) |
| August 20 | 99.0°F (1983) | 42.1°F (1978) | 1.18 in (1990) |
| August 21 | 93.9°F (2003) | 42.1°F (1991) | 6.01 in (2018) |
| August 22 | 93.0°F (2003) | 41.0°F (2004) | 0.99 in (2002) |
| August 23 | 93.9°F (1976) | 41.0°F (2004) | 0.92 in (1973) |
| August 24 | 99.0°F (2023) | 39.9°F (1987) | 2.21 in (2006) |
| August 25 | 97.0°F (2023) | 37.9°F (1977) | 1.42 in (2006) |
| August 26 | 96.1°F (2003) | 44.1°F (2025) | 2.70 in (1972) |
| August 27 | 95.0°F (2003) | 37.9°F (1988) | 1.20 in (1986) |
| August 28 | 95.0°F (1973) | 35.1°F (1986) | 1.30 in (1989) |
| August 29 | 97.0°F (1991) | 37.9°F (1988) | 1.97 in (2015) |
| August 30 | 98.1°F (1983) | 35.1°F (1976) | 0.99 in (1981) |
| August 31 | 95.0°F (2013) | 39.9°F (2009) | 0.78 in (1974) |