Milwaukee, Wisconsin weather in March

Averages from 2021–2025 (155 days of record).

Average high: 46°F
Average low: 30°F
Rainy days: ~12 per month
Total precipitation: 3.3 in
Warmest recorded: 76°F
Coldest recorded: 4°F

Expect March days in Milwaukee, Wisconsin to top out around 46°F and cool to about 30°F overnight, with roughly 12 days of measurable rain across the month. In recent years March has ranged from 4°F to 76°F.

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Current Milwaukee, Wisconsin forecast → · Historical data by Open-Meteo (ERA5).