McConville Lake Weather Forecast

    • 32
    • 41

    Mostly Cloudy

    • 38
    • 40

    Chance Rain

    • 18
    • 45

    Rain

    • 10
    • 21

    Chance Snow

    • 14
    • 23

    Mostly Cloudy

    • 1
    • 21

    Partly Sunny

    • -1
    • 10

    Cold

Today 26 Dec Washington

Cloudy. Northwest Winds 5 to 10 Mph.

Tonight 26 Dec Washington

Cloudy. Patchy fog after midnight. Near steady temperature in the mid 30s. Northwest Winds up to 5 Mph shifting to the east after midnight.

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McConville Lake Temperature Statistics

December Temperature

Waukesha County Airport (13.7 miles)

  • Lowest 14 December, 2025

    -5.8 °F

  • Average December

    21.8 °F

  • Highest 18 December, 2025

    46.4 °F

Climate (2020–Present)

Waukesha County Airport (13.7 miles)

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  • Average Low 2020–2025

    38.3 °F

  • Average 2020–2025

    45.8 °F

  • Average High 2020–2025

    56.3 °F
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