Summit Weather Forecast

    • 28
    • 34

    Partly Sunny

    • 34
    • 41

    Partly Sunny

    • 32
    • 50

    Snow Showers Likely

    • 20
    • 35

    Snow Showers Likely

    • 23
    • 28

    Chance Snow Showers

    • 21
    • 33

    Chance Snow Showers

Today 11 Jan Central Cook

Mostly cloudy in the Morning, then becoming partly cloudy. Scattered Flurries early in the morning. Blustery. Highs in the mid 30s. Northwest Winds 15 to 25 Mph with Gusts up to 35 Mph, becoming west 10 to 15 Mph with Gusts up to 25 Mph in the afternoon.

Tonight 11 Jan Central Cook

Partly cloudy. Near steady temperature in the upper 20s. Southwest Winds 10 to 15 Mph. Gusts up to 25 Mph after midnight.

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Summit Temperature Statistics

January Temperature

Chicago, Chicago Midway Airport (2.5 miles)

  • Lowest 1 January, 2026

    12 °F

  • Average January

    34.2 °F

  • Highest 8 January, 2026

    60.1 °F

Climate (2021–Present)

Chicago, Chicago Midway Airport (2.5 miles)

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  • Average Low 2021–2026

    46.8 °F

  • Average 2021–2026

    54.3 °F

  • Average High 2021–2026

    61.9 °F
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