Summit Weather Forecast

    • 14
    • 32

    Snow Showers

    • 22
    • 27

    Partly Sunny

    • 15
    • 37

    Snow Likely

    • 8
    • 19

    Chance Snow Showers

    • 9
    • 18

    Chance Snow Showers

    • 5
    • 18

    Slight Chance Snow Showers

Today 14 Jan Central Cook

Cloudy. Scattered snow Showers late in the Morning, then isolated snow Showers late. Snow accumulation up to half an inch. Windy. Near steady temperature in the lower 20s. North Winds 20 to 30 Mph, Diminishing to 15 to 25 Mph in the afternoon. Gusts up to 40 Mph. Chance of precipitation 50 percent.

Tonight 14 Jan Central Cook

Mostly cloudy in the Evening, then becoming partly cloudy. Blustery with Lows around 15. Northwest Winds 15 to 25 Mph with Gusts up to 35 Mph, becoming 15 to 20 Mph with Gusts up to 25 Mph after midnight.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Summit Temperature Statistics

January Temperature

Chicago, Chicago Midway Airport (2.5 miles)

  • Lowest 1 January, 2026

    12 °F

  • Average January

    33.7 °F

  • Highest 8 January, 2026

    60.1 °F

Climate (2021–Present)

Chicago, Chicago Midway Airport (2.5 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    46.8 °F

  • Average 2021–2026

    54.3 °F

  • Average High 2021–2026

    61.9 °F
Get WillyWeather+ to remove ads