McConville Lake Weather Forecast

    • 50
    • 66

    Partly Sunny

    • 49
    • 66

    Mostly Cloudy

    • 51
    • 68

    Partly Sunny

    • 52
    • 69

    Partly Sunny

    • 58
    • 69

    Rain Showers Likely

    • 57
    • 68

    Chance Rain Showers

Today 25 Sep Washington

Mostly cloudy in the morning then clearing. Highs in the upper 60s. East Winds up to 5 Mph.

Tonight 25 Sep Washington

Mostly clear. Lows in the upper 40s. East Winds up to 5 Mph through around midnight becoming calm.

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  • Temperature Real-Time

McConville Lake Temperature Statistics

September Temperature

Waukesha County Airport (13.7 miles)

  • Lowest 14 September, 2026

    46.4 °F

  • Average September

    66.1 °F

  • Highest 1 September, 2026

    87.8 °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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