Gary Weather Forecast

    • 21
    • 40

    Becoming Sunny

    • 24
    • 29

    Mostly Sunny

    • 37
    • 41

    Cloudy

    • 34
    • 46

    Mostly Cloudy

    • 43
    • 48

    Chance Rain

    • 40
    • 60

    Mostly Cloudy

Today 20 Dec Lake

Mostly cloudy and breezy. Highs in the lower 40s. Southwest Winds 15 to 20 Mph, becoming west 10 to 15 Mph in the afternoon. Gusts up to 30 Mph.

Tonight 20 Dec Lake

Mostly clear. Lows around 19. West Winds 10 to 15 Mph.

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Gary Temperature Statistics

December Temperature

Gary Regional Airport (3.1 miles)

  • Lowest 14 December, 2025

    1.4 °F

  • Average December

    24.3 °F

  • Highest 17 December, 2025

    44.6 °F

Climate (2020–Present)

Gary Regional Airport (3.1 miles)

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  • Average Low 2020–2025

    43.7 °F

  • Average 2020–2025

    51.5 °F

  • Average High 2020–2025

    60.9 °F
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