September weather in Madison, SD
The average temperature in Madison in September is 61.4°F (49.6°F–73.1°F). Average precipitation: 3.21 inches.
September is a fall month in Madison, and is warmer than the annual average of 44.7°F. Daily temperatures swing about 23.5°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 12h 17m. For travel, September is a comfortable month to visit.
Avg High
73.1°F
Avg Low
49.6°F
Precipitation
3.21 in
Daylight
12h 17m
September records in Madison
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 95.0°F (1970) | 39.9°F (1965) | 0.98 in (1966) |
| September 2 | 95.0°F (1970) | 37.9°F (1974) | 2.90 in (2006) |
| September 3 | 100.0°F (2023) | 32.0°F (1974) | 1.64 in (1996) |
| September 4 | 96.1°F (2023) | 39.0°F (2003) | 3.20 in (1999) |
| September 5 | 99.0°F (2023) | 34.0°F (1965) | 1.05 in (2016) |
| September 6 | 102.0°F (1976) | 39.9°F (2025) | 0.78 in (2005) |
| September 7 | 102.0°F (1976) | 35.1°F (2025) | 2.14 in (2005) |
| September 8 | 95.0°F (1971) | 5.0°F (1996) | 1.09 in (1976) |
| September 9 | 95.0°F (1983) | 39.0°F (1969) | 0.47 in (1985) |
| September 10 | 93.0°F (1981) | 34.0°F (2020) | 1.18 in (2003) |
| September 11 | 91.9°F (1978) | 36.0°F (1964) | 3.30 in (2019) |
| September 12 | 96.1°F (2012) | 34.0°F (1975) | 4.33 in (2019) |
| September 13 | 93.9°F (1990) | 35.1°F (1974) | 1.07 in (1985) |
| September 14 | 91.0°F (1990) | 36.0°F (1996) | 0.92 in (1966) |
| September 15 | 90.0°F (1969) | 28.0°F (2011) | 2.25 in (1997) |
| September 16 | 91.9°F (2018) | 28.0°F (2011) | 0.85 in (2006) |
| September 17 | 91.9°F (2021) | 30.9°F (1971) | 2.80 in (1986) |
| September 18 | 88.0°F (1974) | 33.1°F (1971) | 0.98 in (1978) |
| September 19 | 91.9°F (1972) | 28.0°F (1991) | 1.50 in (1986) |
| September 20 | 97.0°F (1984) | 28.0°F (2006) | 2.72 in (2018) |
| September 21 | 91.0°F (2022) | 28.0°F (1983) | 1.65 in (2004) |
| September 22 | 90.0°F (2005) | 24.1°F (1974) | 1.06 in (2006) |
| September 23 | 93.9°F (2017) | 25.0°F (2012) | 3.49 in (2010) |
| September 24 | 88.0°F (2007) | 26.1°F (1965) | 1.83 in (2017) |
| September 25 | 87.1°F (1967) | 28.0°F (2000) | 1.15 in (2005) |
| September 26 | 90.0°F (1974) | 24.1°F (1965) | 1.29 in (1976) |
| September 27 | 91.0°F (1990) | 28.0°F (1964) | 0.79 in (1975) |
| September 28 | 87.1°F (1983) | 28.0°F (1992) | 0.81 in (1968) |
| September 29 | 89.1°F (2024) | 26.1°F (1984) | 1.48 in (1973) |
| September 30 | 91.9°F (2025) | 21.9°F (1974) | 1.28 in (1995) |