Friess Lake Weather Forecast

    • 47
    • 69

    Mostly Sunny

    • 46
    • 67

    Mostly Sunny

    • 50
    • 68

    Partly Sunny

    • 54
    • 68

    Mostly Cloudy

    • 48
    • 67

    Chance Rain Showers

    • 42
    • 58

    Slight Chance Rain Showers

Today 21 Oct Washington

Sunny. Areas of fog in the morning. Highs in the upper 60s. Southwest Winds up to 5 Mph.

Tonight 21 Oct Washington

Clear until early morning then becoming partly cloudy. Lows in the upper 40s. Calm Winds.

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Friess Lake Temperature Statistics

October Temperature

Waukesha County Airport (13.7 miles)

  • Lowest 17 October, 2026

    33.8 °F

  • Average October

    57.7 °F

  • Highest 12 October, 2026

    86 °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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