Lannon County Park Weather Forecast

    • 9
    • 45

    Rain

    • 15
    • 20

    Mostly Cloudy

    • 9
    • 37

    Partly Sunny

    • 12
    • 20

    Partly Sunny

    • 31
    • 35

    Mostly Cloudy

    • 28
    • 41

    Mostly Cloudy

Today 18 Dec Waukesha

Cloudy with a 30 percent chance of light rain Showers. Areas of fog. West Winds 10 to 15 Mph with Gusts to around 30 Mph.

Tonight 18 Dec Waukesha

Much Colder. Breezy, cloudy. Snow Showers likely in the Evening, then chance of snow Showers in the late evening and overnight. Little snow accumulation. Lows around 9. West Winds 15 to 25 Mph with Gusts to around 40 Mph. Chance of snow 60 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Lannon County Park Temperature Statistics

December Temperature

Milwaukee-Timmerman (7.5 miles)

  • Lowest 14 December, 2025

    -5.8 °F

  • Average December

    18.7 °F

  • Highest 16 December, 2025

    37.4 °F

Climate (2020–Present)

Milwaukee-Timmerman (7.5 miles)

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

  • Average Low 2020–2025

    40 °F

  • Average 2020–2025

    47 °F

  • Average High 2020–2025

    56.9 °F
Get WillyWeather+ to remove ads