Clover Valley Airport Weather Forecast

    • 59
    • 71

    Rain Showers

    • 52
    • 65

    Chance Rain Showers

    • 48
    • 63

    Slight Chance Rain Showers

    • 47
    • 61

    Mostly Cloudy

    • 48
    • 64

    Mostly Cloudy

    • 49
    • 66

    Partly Sunny

Today 19 Sep Walworth

Showers and chance of Thunderstorms in the Morning, then Showers likely and chance of Thunderstorms in the afternoon. Some Thunderstorms may produce heavy rainfall in the morning. Locally heavy rainfall possible in the morning. Highs in the lower 70s. Southeast Winds 5 to 15 Mph. Chance of precipitation near 100 percent.

Tonight 19 Sep Walworth

Cloudy. Showers through around midnight. Chance of Thunderstorms until early morning. Chance of Showers after midnight. Locally heavy rainfall possible through around midnight. Lows around 60. Northeast Winds up to 10 Mph. Chance of precipitation 80 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Clover Valley Airport Temperature Statistics

September Temperature

Janesville-Rock County (20.5 miles)

  • Lowest 14 September, 2026

    42.8 °F

  • Average September

    67.8 °F

  • Highest 1 September, 2026

    91.4 °F

Climate (2021–2026)

Janesville-Rock County (20.5 miles)

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  • Average Low 2021–2026

    40.3 °F

  • Average 2021–2026

    48.7 °F

  • Average High 2021–2026

    60.2 °F
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