Shirland Weather Forecast

    • 69
    • 85

    Rain Showers Likely

    • 56
    • 81

    Rain Showers Likely

    • 52
    • 74

    Mostly Sunny

    • 60
    • 80

    Chance Thunderstorms

    • 57
    • 82

    Slight Chance Thunderstorms

    • 58
    • 79

    Chance Thunderstorms

Today 8 Sep Winnebago

Mostly cloudy in the Morning, then becoming partly cloudy. Highs in the mid 80s. South Winds 5 to 10 Mph, increasing to 10 to 15 Mph in the afternoon.

Tonight 8 Sep Winnebago

Mostly cloudy. A chance of Showers late in the evening. A slight chance of Thunderstorms in the late evening and overnight. Showers likely after midnight. Lows in the upper 60s. South Winds around 10 Mph, becoming southwest after midnight. Chance of precipitation 60 percent.

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Shirland Temperature Statistics

September Temperature

Janesville-Rock County (14.3 miles)

  • Lowest 5 September, 2026

    64.4 °F

  • Average September

    76.1 °F

  • Highest 1 September, 2026

    91.4 °F

Climate (2021–2026)

Janesville-Rock County (14.3 miles)

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  • Average Low 2021–2026

    40.3 °F

  • Average 2021–2026

    48.7 °F

  • Average High 2021–2026

    60.3 °F
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