Hegewisch Weather Forecast

    • 62
    • 78

    Mostly Sunny

    • 62
    • 80

    Mostly Sunny

    • 64
    • 81

    Mostly Sunny

    • 65
    • 80

    Slight Chance Thunderstorms

    • 65
    • 81

    Slight Chance Thunderstorms

    • 67
    • 81

    Chance Rain Showers

    • 64
    • 79

    Chance Rain Showers

Today 16 Sep Central Cook

Mostly sunny. Nearly steady Temperatures in the upper 70s. East Winds 5 to 10 Mph.

Tonight 16 Sep Central Cook

Mostly clear. Lows in the lower 60s. Northeast Winds around 5 Mph.

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Hegewisch Temperature Statistics

September Temperature

Gary Regional Airport (6.8 miles)

  • Lowest 8 September, 2025

    42.8 °F

  • Average September

    63.7 °F

  • Highest 10 September, 2025

    84.2 °F

Climate (2020–Present)

Gary Regional Airport (6.8 miles)

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  • Average Low 2020–2025

    43.6 °F

  • Average 2020–2025

    51.4 °F

  • Average High 2020–2025

    60.8 °F
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