Indianapolis International Airport Weather Forecast

    • 64
    • 79

    Mostly Sunny

    • 60
    • 83

    Becoming Sunny

    • 54
    • 75

    Mostly Sunny

    • 51
    • 71

    Mostly Sunny

    • 50
    • 72

    Mostly Sunny

    • 53
    • 74

    Mostly Sunny

    • 56
    • 77

    Partly Sunny

Today 22 Aug Marion

Partly cloudy. Highs around 80. Northeast Winds 5 to 10 Mph.

Tonight 22 Aug Marion

Partly cloudy through Midnight, then clearing. Lows in the lower 60s. Northwest Winds around 5 Mph.

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Indianapolis International Airport Temperature Statistics

August Temperature

Indianapolis International Airport (0.6 miles)

  • Lowest 3 August, 2025

    58.6 °F

  • Average August

    77.7 °F

  • Highest 16 August, 2025

    92.6 °F

Climate (2020–Present)

Indianapolis International Airport (0.6 miles)

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  • Average Low 2020–2025

    46.6 °F

  • Average 2020–2025

    55.4 °F

  • Average High 2020–2025

    64.8 °F
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