Wilmette Weather Forecast

    • 24
    • 24

    Snow Likely

    • 12
    • 32

    Snow Likely

    • 17
    • 23

    Mostly Cloudy

    • 21
    • 29

    Partly Sunny

    • 23
    • 30

    Mostly Cloudy

    • 28
    • 35

    Partly Sunny

Today 30 Dec Northern Cook

Partly cloudy in the Morning, then becoming mostly cloudy. A slight chance of snow in the afternoon. Highs in the upper 20s. West Winds 10 to 15 Mph. Chance of precipitation 20 percent.

Tonight 30 Dec Northern Cook

Mostly cloudy. Near steady temperature in the mid 20s. West Winds 10 to 15 Mph.

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Wilmette Temperature Statistics

December Temperature

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

  • Lowest 14 December, 2025

    -2 °F

  • Average December

    27.4 °F

  • Highest 23 December, 2025

    54 °F

Climate (2020–Present)

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

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  • Average Low 2020–2025

    44.2 °F

  • Average 2020–2025

    52.9 °F

  • Average High 2020–2025

    61.5 °F
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