Twin Gardens Airport Weather Forecast

    • 60
    • 83

    Mostly Sunny

    • 62
    • 85

    Mostly Sunny

    • 61
    • 87

    Partly Sunny

    • 61
    • 86

    Partly Sunny

    • 60
    • 81

    Chance Rain Showers

    • 54
    • 74

    Chance Rain Showers

Today 14 Sep McHenry

Mostly sunny. Patchy fog through mid morning. Highs in the lower 80s. East Winds 5 to 10 Mph.

Tonight 14 Sep McHenry

Clear. Lows in the lower 60s. East Winds around 5 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Twin Gardens Airport Temperature Statistics

September Temperature

Janesville-Rock County (24.2 miles)

  • Lowest 7 September, 2025

    39.2 °F

  • Average September

    56.2 °F

  • Highest 11 September, 2025

    78.8 °F

Climate (2020–Present)

Janesville-Rock County (24.2 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