Climate almanac
South Milwaukee
Wisconsin, United States · 42.91°, -87.86°
What is the climate like in South Milwaukee?
The best time to visit South Milwaukee is typically July – September, with trip comfort peaking in August (7.0/10). South Milwaukee is warmest in August, when daily highs average 73°F (23°C), and coolest in January, when lows fall to about 24°F (-4°C). The wettest month is typically October and the driest is February; the year sees roughly 38 in (974 mm) of precipitation.
- Best time to visitJuly – September — comfort peaks in August (7.0/10)
- Warmest monthAugust — average high 73°F (23°C)
- Coolest monthJanuary — average low 24°F (-4°C)
- Wettest monthOctober (4.4 in (112 mm))
- Driest monthFebruary (2.3 in (58 mm))
- Annual precipitation38 in (974 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
- Records fromMilwaukee Mitchell AP, 6 km away (1938-2026)