Wilmette Weather Forecast

    • 66
    • 76

    Increasing Clouds

    • 73
    • 86

    Rain Showers

    • 64
    • 84

    Rain Showers

    • 60
    • 77

    Mostly Sunny

    • 66
    • 81

    Slight Chance Thunderstorms

    • 66
    • 84

    Partly Sunny

Today 7 Sep Northern Cook

Mostly sunny. Highs in the upper 70s. East Winds 5 to 10 Mph.

Tonight 7 Sep Northern Cook

Partly cloudy. Lows in the mid 60s. Southeast Winds around 5 Mph.

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  • Temperature Real-Time

Wilmette Temperature Statistics

September Temperature

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

  • Lowest 5 September, 2026

    71.1 °F

  • Average September

    81.9 °F

  • Highest 2 September, 2026

    96.7 °F

Climate (2021–2026)

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

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  • Average Low 2021–2026

    44 °F

  • Average 2021–2026

    52.8 °F

  • Average High 2021–2026

    61.6 °F
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