Downtown Milwaukee Weather Forecast

    • 64
    • 79

    Increasing Clouds

    • 63
    • 73

    Chance Thunderstorms

    • 63
    • 73

    Chance Thunderstorms

    • 62
    • 75

    Chance Thunderstorms

    • 61
    • 74

    Chance Rain Showers

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    • 73

    Chance Rain Showers

Today 18 Sep Milwaukee

Sunny. Highs in the lower 80s. East Winds 5 to 10 Mph.

Tonight 18 Sep Milwaukee

Partly cloudy through around midnight then becoming mostly cloudy. Lows in the lower 60s. Northeast Winds around 5 Mph.

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Downtown Milwaukee Temperature Statistics

September Temperature

Milwaukee, General Mitchell International Airport (5.6 miles)

  • Lowest 4 September, 2025

    46.9 °F

  • Average September

    63.2 °F

  • Highest 16 September, 2025

    79 °F

Climate (2020–Present)

Milwaukee, General Mitchell International Airport (5.6 miles)

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  • Average Low 2020–2025

    43.9 °F

  • Average 2020–2025

    51.5 °F

  • Average High 2020–2025

    59.1 °F
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