Friess Lake Weather Forecast

    • -6
    • 7

    Cold

    • 2
    • 9

    Cold

    • -3
    • 12

    Partly Sunny

    • -1
    • 10

    Cold

    • -1
    • 12

    Mostly Sunny

    • 4
    • 15

    Partly Sunny

Today 25 Jan Washington

Bitterly cold. Mostly cloudy. Highs around 8. North Winds 5 to 10 Mph.

Tonight 25 Jan Washington

Not as cold. Cloudy. Near steady temperature around 1 below. North Winds up to 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Friess Lake Temperature Statistics

January Temperature

Waukesha County Airport (13.7 miles)

  • Lowest 19 January, 2026

    -2.2 °F

  • Average January

    23.7 °F

  • Highest 9 January, 2026

    57.2 °F

Climate (2021–Present)

Waukesha County Airport (13.7 miles)

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  • Average Low 2021–2026

    38.3 °F

  • Average 2021–2026

    45.8 °F

  • Average High 2021–2026

    56.4 °F
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