Washington Heights Weather Forecast

    • 64
    • 83

    Increasing Clouds

    • 65
    • 80

    Chance Thunderstorms

    • 65
    • 81

    Mostly Sunny

    • 67
    • 82

    Mostly Sunny

    • 66
    • 82

    Partly Sunny

    • 66
    • 83

    Partly Sunny

    • 64
    • 85

    Chance Rain Showers

Today 12 Sep Central Cook

Mostly sunny late in the Morning, then becoming partly cloudy. Highs in the mid 80s Inland, but only in the upper 70s near the lake. Southeast Winds 5 to 10 Mph.

Tonight 12 Sep Central Cook

Partly cloudy in the Evening, then becoming mostly cloudy. A slight chance of Showers and Thunderstorms late. Lows in the mid 60s. Southeast Winds 5 to 10 Mph. Chance of precipitation 20 percent.

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Washington Heights Temperature Statistics

September Temperature

Chicago, Chicago Midway Airport (6.2 miles)

  • Lowest 7 September, 2025

    48.9 °F

  • Average September

    65.3 °F

  • Highest 10 September, 2025

    82 °F

Climate (2020–Present)

Chicago, Chicago Midway Airport (6.2 miles)

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  • Average Low 2020–2025

    46.6 °F

  • Average 2020–2025

    54.2 °F

  • Average High 2020–2025

    61.8 °F
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