Wilmette Weather Forecast

    • 49
    • 64

    Partly Cloudy

    • 48
    • 64

    Mostly Sunny

    • 53
    • 67

    Mostly Sunny

    • 54
    • 67

    Mostly Sunny

    • 53
    • 66

    Partly Sunny

    • 55
    • 67

    Mostly Cloudy

Today 19 Oct Northern Cook

Mostly sunny. Highs in the upper 60s. South Winds around 5 Mph.

Tonight 19 Oct Northern Cook

Partly cloudy in the Evening, then clearing. Patchy fog after midnight. Lows in the mid 40s. Light and variable Winds.

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Wilmette Temperature Statistics

October Temperature

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

  • Lowest 17 October, 2026

    37.9 °F

  • Average October

    62 °F

  • Highest 12 October, 2026

    88.6 °F

Climate (2021–2026)

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

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  • Average Low 2021–2026

    43.9 °F

  • Average 2021–2026

    52.8 °F

  • Average High 2021–2026

    61.5 °F
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