Wilmette Weather Forecast

    • 57
    • 68

    Increasing Clouds

    • 62
    • 72

    Mostly Cloudy

    • 66
    • 72

    Rain Showers

    • 57
    • 72

    Rain Showers

    • 55
    • 63

    Partly Sunny

    • 56
    • 63

    Partly Sunny

Today 28 Sep Northern Cook

Mostly sunny. Highs around 60.

Tonight 28 Sep Northern Cook

Mostly clear in the Evening, then becoming partly cloudy. Patchy fog after midnight. Lows in the mid 50s. Northeast Winds around 5 Mph in the Evening, becoming light and variable.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Wilmette Temperature Statistics

September Temperature

Chicago / Wheeling, Pal-Waukee Airport (9.9 miles)

  • Lowest 26 September, 2026

    46.9 °F

  • Average September

    70 °F

  • Highest 2 September, 2026

    96.7 °F

Climate (2021–2026)

Chicago / Wheeling, Pal-Waukee Airport (9.9 miles)

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

  • Average Low 2021–2026

    44 °F

  • Average 2021–2026

    52.8 °F

  • Average High 2021–2026

    61.5 °F
Get WillyWeather+ to remove ads