Chicago O'Hare International Airport Weather Forecast

    • 43
    • 56

    Rain Showers Likely

    • 39
    • 52

    Mostly Cloudy

    • 37
    • 53

    Mostly Sunny

    • 45
    • 58

    Mostly Cloudy

    • 48
    • 59

    Chance Rain Showers

    • 50
    • 61

    Slight Chance Rain Showers

Today 21 Oct Central Cook

Partly cloudy in the Morning, then becoming mostly cloudy. A slight chance of Showers early in the afternoon. Showers likely late. Windy. Highs in the upper 50s. Temperature falling to around 50 late in the afternoon. Southwest Winds 15 to 20 Mph with Gusts up to 30 Mph, becoming west 15 to 25 Mph with Gusts up to 40 Mph in the afternoon. Chance of precipitation 60 percent.

Tonight 21 Oct Central Cook

Mostly cloudy. Showers likely early in the Evening, then a slight chance of Showers late in the evening. Breezy with Lows in the lower 40s. West Winds 15 to 20 Mph with Gusts up to 35 Mph. Chance of precipitation 60 percent.

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Chicago O'Hare International Airport Temperature Statistics

October Temperature

Chicago, Chicago-O'Hare International Airport (0 miles)

  • Lowest 9 October, 2025

    46 °F
  • Average October

    64.5 °F
  • Highest 3 October, 2025

    88 °F

Climate (2020–Present)

Chicago, Chicago-O'Hare International Airport (0 miles)

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  • Average Low 2020–2025

    45.5 °F
  • Average 2020–2025

    53.6 °F
  • Average High 2020–2025

    61.8 °F
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