Murphy Lake Weather Forecast

    • 64
    • 80

    Rain Showers Likely

    • 44
    • 76

    Chance Rain Showers

    • 38
    • 59

    Partly Sunny

    • 43
    • 60

    Slight Chance Rain Showers

    • 47
    • 67

    Slight Chance Rain Showers

    • 52
    • 72

    Slight Chance Thunderstorms

Today 18 May Washington

Warmer. Mostly cloudy with a 50 percent chance of Showers and Thunderstorms. Highs around 80. Southwest Winds 10 to 15 Mph.

Tonight 18 May Washington

Mostly cloudy. Chance of Showers and Thunderstorms until early Morning, then Showers likely and chance of Thunderstorms early in the morning. Lows in the mid 60s. South Winds 10 to 15 Mph. Chance of precipitation 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Murphy Lake Temperature Statistics

May Temperature

Waukesha County Airport (13.7 miles)

  • Lowest 2 May, 2026

    30.2 °F

  • Average May

    49 °F

  • Highest 4 May, 2026

    78.8 °F

Climate (2021–Present)

Waukesha County Airport (13.7 miles)

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  • Average Low 2021–2026

    38.5 °F

  • Average 2021–2026

    46 °F

  • Average High 2021–2026

    56.6 °F
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