Friess Lake Weather Forecast

    • 24
    • 27

    Wintry Mix Likely

    • 32
    • 37

    Mostly Cloudy

    • 30
    • 40

    Chance Rain

    • 33
    • 40

    Partly Sunny

    • 31
    • 44

    Chance Rain/Snow

    • 27
    • 38

    Chance Snow

Today 4 Jan Washington

Partly sunny until late Afternoon, then cloudy with light snow Likely, possibly mixed with freezing rain and sleet late in the afternoon. Little snow and sleet accumulation. Highs in the upper 20s. West Winds up to 5 Mph shifting to the south in the afternoon. Chance of precipitation 60 percent.

Tonight 4 Jan Washington

Not as cold. Mostly cloudy. Light Snow, possibly mixed with freezing drizzle and sleet through around Midnight, then slight chance of light freezing Drizzle, possibly mixed with snow and after midnight. Little snow and sleet accumulation. Near steady temperature in the mid 20s. South Winds 5 to 15 Mph. Chance of precipitation 60 percent.

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Friess Lake Temperature Statistics

January Temperature

Waukesha County Airport (13.7 miles)

  • Lowest 1 January, 2026

    8.6 °F

  • Average January

    13.4 °F

  • Highest 2 January, 2026

    17.6 °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

    56.3 °F
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