Wilmette Weather Forecast

    • 74
    • 88

    Smoke

    • 65
    • 85

    Slight Chance Thunderstorms

    • 62
    • 72

    Mostly Sunny

    • 66
    • 79

    Partly Sunny

    • 69
    • 82

    Partly Sunny

    • 71
    • 82

    Mostly Sunny

Today 20 Jul Northern Cook

Partly cloudy in the Morning, then becoming mostly cloudy. Smoke in the morning. A slight chance of Showers late. Highs in the upper 80s. Southwest Winds 5 to 10 Mph, increasing to 10 to 15 Mph with Gusts up to 25 Mph in the afternoon. Chance of precipitation 20 percent.

Tonight 20 Jul Northern Cook

Partly cloudy in the Evening, then becoming mostly cloudy. A chance of Showers and Thunderstorms in the Evening, then Showers and Thunderstorms likely after midnight. A chance of Showers and Thunderstorms late. Humid with Lows in the lower 70s. Southwest Winds 10 to 15 Mph. Gusts up to 25 Mph in the evening. Chance of precipitation 70 percent.

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Wilmette Temperature Statistics

July Temperature

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

  • Lowest 7 July, 2026

    62.7 °F

  • Average July

    78.4 °F

  • Highest 14 July, 2026

    97.6 °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

    52.9 °F

  • Average High 2021–2026

    61.6 °F
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