Wauwatosa Weather Forecast

    • 69
    • 81

    Chance Thunderstorms

    • 63
    • 78

    Mostly Cloudy

    • 63
    • 77

    Partly Sunny

    • 65
    • 80

    Mostly Cloudy

    • 70
    • 82

    Chance Rain Showers

    • 66
    • 87

    Chance Rain Showers

Today 4 Sep Milwaukee

Partly sunny with isolated Showers and Thunderstorms. Highs in the lower 80s. South Winds 5 to 10 Mph. Chance of precipitation 20 percent.

Tonight 4 Sep Milwaukee

Mostly cloudy. A 40 percent chance of Showers and Thunderstorms until early morning. Areas of fog through the night. Lows in the upper 60s. North Winds up to 5 Mph.

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Wauwatosa Temperature Statistics

September Temperature

Milwaukee-Timmerman (4.3 miles)

  • Lowest 1 September, 2026

    69.8 °F

  • Average September

    77.4 °F

  • Highest 1 September, 2026

    87.8 °F

Climate (2021–2026)

Milwaukee-Timmerman (4.3 miles)

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  • Average Low 2021–2026

    39.9 °F

  • Average 2021–2026

    47.2 °F

  • Average High 2021–2026

    56.9 °F
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