Summit Weather Forecast

    • 49
    • 65

    Mostly Sunny

    • 51
    • 67

    Mostly Sunny

    • 48
    • 72

    Mostly Sunny

    • 47
    • 63

    Sunny

    • 51
    • 66

    Mostly Sunny

    • 53
    • 72

    Partly Sunny

    • 54
    • 72

    Partly Sunny

Today 2 Oct Central Cook

Sunny. Highs in the lower 60s. North Winds 10 to 15 Mph.

Tonight 2 Oct Central Cook

Clear. Lows in the upper 40s. Northeast Winds 5 to 10 Mph.

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Summit Temperature Statistics

October Temperature

Chicago, Chicago Midway Airport (2.5 miles)

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  • Average October

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Climate (2021–2026)

Chicago, Chicago Midway Airport (2.5 miles)

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  • Average Low 2021–2026

    46.7 °F

  • Average 2021–2026

    54.3 °F

  • Average High 2021–2026

    61.8 °F
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