Indianapolis International Airport Weather Forecast

    • 61
    • 81

    Increasing Clouds

    • 65
    • 84

    Chance Thunderstorms

    • 61
    • 83

    Mostly Sunny

    • 59
    • 82

    Mostly Sunny

    • 63
    • 83

    Partly Sunny

    • 69
    • 87

    Partly Sunny

    • 71
    • 88

    Partly Sunny

Today 25 Aug Marion

Mostly sunny. Highs around 80. East Winds around 5 Mph, becoming south late.

Tonight 25 Aug Marion

Partly cloudy. Lows around 60. Southeast Winds around 5 Mph.

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Indianapolis International Airport Temperature Statistics

August Temperature

Indianapolis International Airport (0.6 miles)

  • Lowest 23 August, 2026

    61 °F

  • Average August

    76.5 °F

  • Highest 8 August, 2026

    90.6 °F

Climate (2021–2026)

Indianapolis International Airport (0.6 miles)

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  • Average Low 2021–2026

    46.8 °F

  • Average 2021–2026

    55.8 °F

  • Average High 2021–2026

    65.2 °F
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