September weather in West Milwaukee, WI
The average temperature in West Milwaukee in September is 65.4°F (54.3°F–76.5°F). Average precipitation: 3.69 inches.
September is a fall month in West Milwaukee, and is warmer than the annual average of 49.1°F. Daily temperatures swing about 22.2°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 12h 17m. For travel, September is one of the best months of the year to visit.
Avg High
76.5°F
Avg Low
54.3°F
Precipitation
3.69 in
Daylight
12h 17m
September records in West Milwaukee
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 97.0°F (1953) | 45.0°F (2009) | 0.67 in (2010) |
| September 2 | 95.0°F (1953) | 44.1°F (2009) | 1.10 in (2002) |
| September 3 | 99.0°F (1964) | 44.1°F (2009) | 0.71 in (2002) |
| September 4 | 95.0°F (2023) | 43.0°F (2025) | 1.11 in (1965) |
| September 5 | 91.9°F (2023) | 42.1°F (1962) | 1.96 in (2008) |
| September 6 | 93.9°F (1960) | 44.1°F (1962) | 1.32 in (1970) |
| September 7 | 96.1°F (1985) | 43.0°F (1986) | 1.98 in (1965) |
| September 8 | 93.9°F (1971) | 45.0°F (2025) | 1.76 in (1985) |
| September 9 | 96.1°F (2002) | 46.0°F (1975) | 1.70 in (1965) |
| September 10 | 95.0°F (1978) | 44.1°F (2008) | 1.23 in (2001) |
| September 11 | 91.9°F (2005) | 43.0°F (1955) | 2.02 in (1986) |
| September 12 | 93.0°F (2005) | 42.1°F (2007) | 3.10 in (2000) |
| September 13 | 91.9°F (2005) | 37.9°F (1953) | 2.85 in (1961) |
| September 14 | 91.9°F (2005) | 41.0°F (1974) | 1.60 in (1978) |
| September 15 | 89.1°F (2009) | 37.0°F (2007) | 1.30 in (1970) |
| September 16 | 90.0°F (1955) | 33.1°F (1964) | 0.83 in (1980) |
| September 17 | 91.9°F (1964) | 45.0°F (1959) | 1.28 in (1978) |
| September 18 | 90.0°F (1955) | 42.1°F (1973) | 2.23 in (1972) |
| September 19 | 95.0°F (1965) | 37.0°F (1956) | 1.02 in (2001) |
| September 20 | 90.0°F (2024) | 35.1°F (1956) | 1.08 in (1972) |
| September 21 | 87.1°F (1970) | 39.0°F (1962) | 0.71 in (2025) |
| September 22 | 90.0°F (2005) | 33.1°F (1974) | 1.85 in (1961) |
| September 23 | 84.9°F (2004) | 39.0°F (1983) | 2.05 in (2000) |
| September 24 | 89.1°F (2010) | 36.0°F (1971) | 1.68 in (1958) |
| September 25 | 89.1°F (2007) | 32.0°F (2001) | 1.28 in (1984) |
| September 26 | 84.9°F (1973) | 35.1°F (1965) | 3.02 in (2005) |
| September 27 | 84.9°F (1971) | 41.0°F (2010) | 1.73 in (2023) |
| September 28 | 88.0°F (1952) | 34.0°F (1961) | 2.18 in (1999) |
| September 29 | 93.0°F (1953) | 36.0°F (1967) | 1.17 in (1986) |
| September 30 | 91.0°F (1971) | 36.0°F (1972) | 1.15 in (1981) |