The Gap Weather Forecast

    • 74
    • 78

    Rain Showers

    • 71
    • 85

    Chance Thunderstorms

    • 67
    • 76

    Partly Sunny

    • 68
    • 82

    Chance Thunderstorms

    • 64
    • 76

    Slight Chance Thunderstorms

    • 63
    • 75

    Slight Chance Thunderstorms

    • 64
    • 77

    Partly Sunny

Today 15 Aug Central Cook

Mostly cloudy. A chance of Showers and a slight chance of Thunderstorms. Temperatures in the upper 70s. Southwest Winds around 5 Mph. Chance of precipitation 50 percent.

Tonight 15 Aug Central Cook

Mostly cloudy. A slight chance of Showers in the Evening, then Showers likely and a chance of Thunderstorms after midnight. Near steady temperature in the mid 70s. South Winds around 5 Mph. Chance of precipitation 60 percent.

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The Gap Temperature Statistics

August Temperature

Chicago, Chicago Midway Airport (7.5 miles)

  • Lowest 3 August, 2026

    63 °F

  • Average August

    75 °F

  • Highest 10 August, 2026

    87.1 °F

Climate (2021–2026)

Chicago, Chicago Midway Airport (7.5 miles)

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  • Average Low 2021–2026

    46.7 °F

  • Average 2021–2026

    54.3 °F

  • Average High 2021–2026

    62 °F
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