Wilmette Weather Forecast

    • 75
    • 87

    Chance Thunderstorms

    • 75
    • 87

    Slight Chance Thunderstorms

    • 73
    • 88

    Chance Thunderstorms

    • 71
    • 83

    Slight Chance Thunderstorms

    • 70
    • 83

    Slight Chance Thunderstorms

    • 69
    • 82

    Partly Sunny

Today 31 Aug Northern Cook

Mostly cloudy in the Morning, then becoming partly cloudy. A chance of Showers and Thunderstorms early in the Morning, then a slight chance of Showers and Thunderstorms in the late morning and afternoon. Humid. Highs in the upper 80s. Southwest Winds 10 to 15 Mph. Chance of precipitation 40 percent.

Tonight 31 Aug Northern Cook

Mostly cloudy in the Evening, then becoming partly cloudy. A slight chance of Showers and Thunderstorms early in the evening. Humid with Lows in the mid 70s. Southwest Winds 5 to 10 Mph. Chance of precipitation 20 percent.

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  • Temperature Real-Time

Wilmette Temperature Statistics

August Temperature

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

  • Lowest 24 August, 2026

    56.6 °F

  • Average August

    73.2 °F

  • Highest 7 August, 2026

    87.7 °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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