Upper Oconomowoc Lake Weather Forecast

    • 62
    • 78

    Thunderstorms

    • 38
    • 67

    Partly Sunny

    • 44
    • 57

    Rain Showers Likely

    • 44
    • 60

    Rain Showers Likely

    • 37
    • 60

    Partly Sunny

    • 40
    • 61

    Mostly Sunny

Today 28 Apr Waukesha

Warmer. Partly sunny. Chance of light rain Showers and slight chance of Thunderstorms late in the morning. Highs in the upper 70s. South Winds 10 to 20 Mph. Gusts up to 30 Mph increasing to 40 Mph in the afternoon. Chance of precipitation 30 percent.

Tonight 28 Apr Waukesha

Warmer, breezy. Mostly cloudy. Chance of light Showers through around midnight. Chance of Thunderstorms through the night. Light Showers likely after midnight. Lows in the lower 60s. Southwest Winds 20 to 25 Mph with Gusts to around 40 Mph. Chance of precipitation 60 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Upper Oconomowoc Lake Temperature Statistics

April Temperature

Waukesha County Airport (11.2 miles)

  • Lowest 8 April, 2025

    17.6 °F

  • Average April

    42.9 °F

  • Highest 23 April, 2025

    71.6 °F

Climate (2020–Present)

Waukesha County Airport (11.2 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    38 °F

  • Average 2020–2025

    45.5 °F

  • Average High 2020–2025

    56.2 °F
Get WillyWeather+ to remove ads