South Byron Weather Forecast

    • 59
    • 80

    Becoming Sunny

    • 58
    • 82

    Mostly Sunny

    • 59
    • 83

    Mostly Sunny

    • 59
    • 83

    Partly Sunny

    • 58
    • 80

    Chance Rain Showers

    • 54
    • 74

    Chance Thunderstorms

Today 14 Sep Fond Du Lac

Partly sunny in the morning then clearing. Patchy dense fog in the morning. Highs in the upper 70s. East Winds up to 10 Mph.

Tonight 14 Sep Fond Du Lac

Clear. Lows in the upper 50s. East Winds up to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

South Byron Temperature Statistics

September Temperature

Fond Du Lac County Airport (8.7 miles)

  • Lowest 4 September, 2025

    41 °F

  • Average September

    58.3 °F

  • Highest 1 September, 2025

    75.9 °F

Climate (2020–Present)

Fond Du Lac County Airport (8.7 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    39.9 °F

  • Average 2020–2025

    49.3 °F

  • Average High 2020–2025

    58.4 °F
Get WillyWeather+ to remove ads