Glencoe Weather Forecast

    • 64
    • 69

    Rain Showers

    • 59
    • 66

    Rain Showers

    • 56
    • 65

    Chance Rain Showers

    • 56
    • 63

    Slight Chance Rain Showers

    • 57
    • 63

    Mostly Cloudy

    • 59
    • 64

    Mostly Cloudy

    • 60
    • 66

    Partly Sunny

Today 19 Sep Northern Cook

Partly cloudy. Highs in the lower 70s.

Tonight 19 Sep Northern Cook

A slight chance of Thunderstorms early in the evening. Showers. A chance of Thunderstorms in the late evening and overnight. Some Thunderstorms may produce heavy rainfall early in the evening. Some Thunderstorms may produce heavy rainfall in the late evening and overnight. Near steady temperature in the upper 60s. East Winds 5 to 10 Mph. Chance of precipitation near 100 percent.

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Glencoe Temperature Statistics

September Temperature

Chicago / Wheeling, Pal-Waukee Airport (7.5 miles)

  • Lowest 14 September, 2026

    50.6 °F

  • Average September

    73.4 °F

  • Highest 2 September, 2026

    96.7 °F

Climate (2021–2026)

Chicago / Wheeling, Pal-Waukee Airport (7.5 miles)

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  • Average Low 2021–2026

    44 °F

  • Average 2021–2026

    52.8 °F

  • Average High 2021–2026

    61.5 °F
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