Richmond Weather Forecast

    • 7
    • 44

    Rain

    • 18
    • 23

    Mostly Cloudy

    • 8
    • 37

    Partly Sunny

    • 11
    • 20

    Partly Sunny

    • 28
    • 35

    Mostly Cloudy

    • 24
    • 40

    Mostly Cloudy

Today 18 Dec Walworth

Light rain until late Afternoon, then chance of light rain Showers late in the afternoon. Highs in the mid 40s. Southwest Winds 15 to 20 Mph. Chance of precipitation near 100 percent.

Tonight 18 Dec Walworth

Colder, breezy. Mostly cloudy. Snow Showers likely in the Evening, then slight chance of snow Showers in the late evening and overnight. Little snow accumulation. Lows around 8. West Winds 20 to 25 Mph with Gusts to around 40 Mph. Chance of snow 70 percent.

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Richmond Temperature Statistics

December Temperature

Janesville-Rock County (16.2 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 (16.2 miles)

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  • Average Low 2020–2025

    40.4 °F

  • Average 2020–2025

    48.7 °F

  • Average High 2020–2025

    60.2 °F
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