Oconomowoc Weather Forecast

    • 34
    • 53

    Increasing Clouds

    • 35
    • 53

    Mostly Cloudy

    • 40
    • 64

    Partly Sunny

    • 25
    • 46

    Mostly Cloudy

    • 27
    • 42

    Mostly Cloudy

    • 30
    • 50

    Mostly Cloudy

Today 19 Mar Waukesha

Not as cool. Partly sunny. Highs in the upper 40s. East Winds up to 5 Mph.

Tonight 19 Mar Waukesha

Partly cloudy in the evening then becoming mostly cloudy. Lows in the lower 30s. Southeast Winds around 5 Mph shifting to the southwest after midnight.

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  • Temperature Real-Time

Oconomowoc Temperature Statistics

March Temperature

Watertown (11.8 miles)

  • Lowest 1 March, 2026

    7.2 °F

  • Average March

    36.9 °F

  • Highest 9 March, 2026

    68.9 °F

Climate (2021–Present)

Watertown (11.8 miles)

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  • Average Low 2021–2026

    35.8 °F

  • Average 2021–2026

    45.6 °F

  • Average High 2021–2026

    54.7 °F
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