Friess Lake Weather Forecast

    • 65
    • 79

    Rain Showers

    • 43
    • 72

    Chance Rain Showers

    • 39
    • 58

    Partly Sunny

    • 43
    • 59

    Partly Sunny

    • 47
    • 65

    Mostly Cloudy

    • 50
    • 72

    Mostly Cloudy

Today 18 May Washington

Warmer. Partly sunny. Near steady temperature in the upper 70s. Southwest Winds 10 to 15 Mph.

Tonight 18 May Washington

Cloudy with a 50 percent chance of light Showers and Thunderstorms. Lows in the mid 60s. Southwest Winds 10 to 15 Mph with Gusts to around 30 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Friess Lake Temperature Statistics

May Temperature

Waukesha County Airport (13.7 miles)

  • Lowest 2 May, 2026

    30.2 °F

  • Average May

    50.1 °F

  • Highest 16 May, 2026

    82.4 °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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