Indianapolis International Airport Weather Forecast

    • 73
    • 90

    Chance Thunderstorms

    • 73
    • 90

    Rain Showers Likely

    • 71
    • 89

    Rain Showers Likely

    • 67
    • 86

    Rain Showers Likely

    • 64
    • 81

    Chance Thunderstorms

    • 63
    • 79

    Chance Thunderstorms

Today 9 Aug Marion

Partly cloudy. A slight chance of Showers and Thunderstorms late this afternoon. Hot with Highs around 90. Southwest Winds 5 to 10 Mph. Gusts up to 20 Mph late this afternoon. Chance of rain 20 percent.

Tonight 9 Aug Marion

Partly cloudy through the late Overnight, then becoming mostly cloudy. A chance of Showers and Thunderstorms. Humid with Lows in the lower 70s. Southwest Winds around 10 Mph with Gusts up to 20 Mph. Chance of rain 40 percent.

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Indianapolis International Airport Temperature Statistics

August Temperature

Indianapolis International Airport (0.6 miles)

  • Lowest 3 August, 2026

    64.7 °F

  • Average August

    75.7 °F

  • Highest 7 August, 2026

    89.1 °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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