Richmond Weather Forecast

    • 58
    • 83

    Mostly Sunny

    • 57
    • 83

    Mostly Sunny

    • 58
    • 83

    Mostly Sunny

    • 60
    • 83

    Mostly Cloudy

    • 56
    • 74

    Chance Thunderstorms

    • 55
    • 72

    Chance Rain Showers

Today 15 Sep Walworth

Sunny. Highs in the lower 80s. Southeast Winds 5 to 10 Mph.

Tonight 15 Sep Walworth

Mostly clear. Lows in the upper 50s. East Winds up to 5 Mph.

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Richmond Temperature Statistics

September Temperature

Janesville-Rock County (16.2 miles)

  • Lowest 7 September, 2025

    39.2 °F

  • Average September

    56.8 °F

  • Highest 12 September, 2025

    82.4 °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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