Murphy Lake Weather Forecast

    • 61
    • 83

    Mostly Sunny

    • 59
    • 80

    Partly Sunny

    • 58
    • 74

    Mostly Cloudy

    • 60
    • 73

    Slight Chance Thunderstorms

    • 61
    • 78

    Chance Thunderstorms

    • 60
    • 78

    Chance Rain Showers

Today 17 Sep Washington

Sunny. Highs in the mid 80s. Southwest Winds up to 5 Mph.

Tonight 17 Sep Washington

Mostly clear. Lows in the lower 60s. Calm Winds.

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Murphy Lake Temperature Statistics

September Temperature

Waukesha County Airport (13.7 miles)

  • Lowest 8 September, 2025

    41 °F

  • Average September

    58.5 °F

  • Highest 12 September, 2025

    80.6 °F

Climate (2020–Present)

Waukesha County Airport (13.7 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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