Murphy Lake Weather Forecast

    • 50
    • 61

    Mostly Cloudy

    • 48
    • 60

    Partly Sunny

    • 50
    • 64

    Mostly Sunny

    • 49
    • 64

    Partly Sunny

    • 48
    • 65

    Partly Sunny

    • 51
    • 66

    Mostly Cloudy

Today 21 Sep Washington

Cloudy. Near steady temperature in the upper 50s. Northeast Winds 10 to 15 Mph.

Tonight 21 Sep Washington

Mostly cloudy. Lows in the upper 40s. Northeast Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Murphy Lake Temperature Statistics

September Temperature

Waukesha County Airport (13.7 miles)

  • Lowest 14 September, 2026

    46.4 °F

  • Average September

    67.3 °F

  • Highest 1 September, 2026

    87.8 °F

Climate (2021–2026)

Waukesha County Airport (13.7 miles)

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  • Average Low 2021–2026

    38.8 °F

  • Average 2021–2026

    46.2 °F

  • Average High 2021–2026

    56.6 °F
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