Gary/Chicago International Airport Weather Forecast

    • 55
    • 72

    Increasing Clouds

    • 56
    • 68

    Partly Sunny

    • 55
    • 69

    Sunny

    • 60
    • 78

    Mostly Sunny

    • 65
    • 84

    Mostly Cloudy

    • 66
    • 85

    Chance Thunderstorms

Today 31 May Lake

Partly cloudy. Highs in the upper 70s Inland, but only in the upper 60s near the lake. East Winds 5 to 10 Mph.

Tonight 31 May Lake

Mostly cloudy. A chance of Sprinkles after midnight. Lows in the mid 50s. Northeast Winds 5 to 10 Mph.

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Gary/Chicago International Airport Temperature Statistics

May Temperature

Gary Regional Airport (0 miles)

  • Lowest 2 May, 2026

    30.2 °F

  • Average May

    58.3 °F

  • Highest 17 May, 2026

    87.8 °F

Climate (2021–Present)

Gary Regional Airport (0 miles)

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  • Average Low 2021–2026

    43.8 °F

  • Average 2021–2026

    51.7 °F

  • Average High 2021–2026

    61.3 °F
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