Ottawa Lake Weather Forecast

    • 28
    • 45

    Mostly Sunny

    • 34
    • 50

    Rain Likely

    • 42
    • 58

    Chance Rain

    • 49
    • 66

    Rain Likely

    • 39
    • 59

    Rain

    • 27
    • 50

    Chance Rain/Snow

Today 25 Mar Waukesha

Partly sunny in the morning then clearing. Highs in the upper 40s. Northwest Winds 5 to 15 Mph.

Tonight 25 Mar Waukesha

Mostly clear. Lows in the mid 20s. North Winds up to 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Ottawa Lake Temperature Statistics

March Temperature

Waukesha County Airport (13.7 miles)

  • Lowest 2 March, 2025

    8.6 °F

  • Average March

    36.3 °F

  • Highest 14 March, 2025

    78.8 °F

Climate (2020–Present)

Waukesha County Airport (13.7 miles)

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  • Average Low 2020–2025

    38 °F

  • Average 2020–2025

    45.4 °F

  • Average High 2020–2025

    56.1 °F
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