Pewaukee Weather Forecast

    • 73
    • 89

    Partly Sunny

    • 70
    • 89

    Thunderstorms Likely

    • 68
    • 83

    Rain Showers Likely

    • 65
    • 83

    Chance Thunderstorms

    • 65
    • 84

    Chance Rain Showers

    • 66
    • 83

    Slight Chance Thunderstorms

Today 8 Aug Waukesha

Very warm and humid. Sunny in the morning then becoming partly sunny. Highs around 90. South Winds 5 to 15 Mph. Highest heat index Readings 95 to 99 in the afternoon.

Tonight 8 Aug Waukesha

Mostly clear. Lows in the lower 70s. South Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Pewaukee Temperature Statistics

August Temperature

Waukesha County Airport (1.2 miles)

  • Lowest 2 August, 2025

    51.8 °F

  • Average August

    64 °F

  • Highest 5 August, 2025

    80.6 °F

Climate (2020–Present)

Waukesha County Airport (1.2 miles)

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  • Average Low 2020–2025

    38.1 °F

  • Average 2020–2025

    45.6 °F

  • Average High 2020–2025

    56.2 °F
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