Wilmette Weather Forecast

    • 22
    • 24

    Blustery

    • 17
    • 40

    Partly Sunny

    • 24
    • 28

    Partly Sunny

    • 36
    • 39

    Mostly Cloudy

    • 34
    • 44

    Mostly Cloudy

    • 41
    • 47

    Mostly Cloudy

Today 19 Dec Northern Cook

Partly cloudy. Blustery. Highs in the lower 20s. Northwest Winds 15 to 20 Mph, becoming west 10 to 15 Mph in the afternoon. Gusts up to 30 Mph.

Tonight 19 Dec Northern Cook

Mostly cloudy in the Evening, then becoming partly cloudy. Lows around 20. Temperature rising into the upper 20s after midnight. South Winds 5 to 10 Mph, increasing to 10 to 15 Mph with Gusts up to 25 Mph after midnight.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Wilmette Temperature Statistics

December Temperature

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

  • Lowest 14 December, 2025

    -2 °F

  • Average December

    22.5 °F

  • Highest 17 December, 2025

    41 °F

Climate (2020–Present)

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

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

  • Average Low 2020–2025

    44.2 °F

  • Average 2020–2025

    52.9 °F

  • Average High 2020–2025

    61.4 °F
Get WillyWeather+ to remove ads