Upper Oconomowoc Lake Weather Forecast

    • 24
    • 36

    Snow

    • 34
    • 44

    Rain/Snow

    • 23
    • 42

    Breezy

    • 29
    • 39

    Rain/Snow

    • 13
    • 38

    Rain/Snow

    • 4
    • 25

    Partly Sunny

Today 11 Mar Waukesha

Cloudy. Light freezing drizzle and chance of drizzle in the morning. Light snow through the day. Slight chance of light rain in the afternoon. Snow accumulation up to 1 inch. Highs in the mid 30s. Northwest Winds 10 to 15 Mph with Gusts to around 30 Mph. Chance of precipitation 80 percent.

Tonight 11 Mar Waukesha

Mostly clear. Lows in the mid 20s. Northwest Winds 5 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Upper Oconomowoc Lake Temperature Statistics

March Temperature

Waukesha County Airport (11.2 miles)

  • Lowest 1 March, 2026

    14 °F

  • Average March

    38.7 °F

  • Highest 9 March, 2026

    69.8 °F

Climate (2021–Present)

Waukesha County Airport (11.2 miles)

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  • Average Low 2021–2026

    38.5 °F

  • Average 2021–2026

    46 °F

  • Average High 2021–2026

    56.5 °F
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