Naperville Weather Forecast

    • 43
    • 66

    Becoming Sunny

    • 44
    • 69

    Mostly Sunny

    • 52
    • 73

    Partly Sunny

    • 57
    • 78

    Mostly Cloudy

    • 60
    • 83

    Mostly Sunny

    • 58
    • 80

    Partly Sunny

Today 6 Sep DuPage

Partly cloudy early to mid Afternoon, then becoming mostly cloudy. Highs in the mid 60s. West Winds 10 to 20 Mph with Gusts up to 25 Mph.

Tonight 6 Sep DuPage

Mostly cloudy early in the evening then clearing. Lows in the mid 40s. Northwest Winds 5 to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Naperville Temperature Statistics

September Temperature

Chicago / West Chicago, Dupage Airport (9.3 miles)

  • Lowest 4 September, 2025

    46 °F

  • Average September

    63.3 °F

  • Highest 2 September, 2025

    79 °F

Climate (2020–Present)

Chicago / West Chicago, Dupage Airport (9.3 miles)

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

  • Average Low 2020–2025

    42 °F

  • Average 2020–2025

    51.7 °F

  • Average High 2020–2025

    61.2 °F
Get WillyWeather+ to remove ads