Lookout Hill Weather Forecast

    • 56
    • 82

    Mostly Sunny

    • 59
    • 82

    Partly Sunny

    • 60
    • 82

    Partly Sunny

    • 60
    • 76

    Chance Rain Showers

    • 59
    • 74

    Chance Rain Showers

    • 58
    • 74

    Chance Rain Showers

Today 16 Sep Waukesha

Sunny. Highs in the lower 80s. Southeast Winds up to 10 Mph.

Tonight 16 Sep Waukesha

Mostly clear. Lows in the mid 50s. Southeast Winds up to 5 Mph through around midnight becoming calm.

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Lookout Hill Temperature Statistics

September Temperature

Waukesha County Airport (3.1 miles)

  • Lowest 8 September, 2025

    41 °F

  • Average September

    57.9 °F

  • Highest 12 September, 2025

    80.6 °F

Climate (2020–Present)

Waukesha County Airport (3.1 miles)

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  • Average Low 2020–2025

    38.2 °F

  • Average 2020–2025

    45.7 °F

  • Average High 2020–2025

    56.2 °F
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