Newark Weather Forecast

    • 8
    • 45

    Chance Snow Showers

    • 17
    • 21

    Increasing Clouds

    • 12
    • 38

    Partly Sunny

    • 15
    • 25

    Partly Sunny

    • 31
    • 37

    Mostly Cloudy

    • 29
    • 44

    Mostly Cloudy

    • 37
    • 44

    Mostly Cloudy

Today 18 Dec Rock

Cloudy. West Winds 15 to 20 Mph with Gusts to around 35 Mph.

Tonight 18 Dec Rock

Much Colder. Breezy, cloudy. A 50 percent chance of light snow until early morning. Lows around 7. West Winds 15 to 25 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Newark Temperature Statistics

December Temperature

Janesville-Rock County (10.6 miles)

  • Lowest 14 December, 2025

    -7.6 °F

  • Average December

    17.3 °F

  • Highest 10 December, 2025

    37.4 °F

Climate (2020–Present)

Janesville-Rock County (10.6 miles)

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

  • Average Low 2020–2025

    40.4 °F

  • Average 2020–2025

    48.7 °F

  • Average High 2020–2025

    60.2 °F
Get WillyWeather+ to remove ads