Indianapolis International Airport Weather Forecast

    • 72
    • 83

    Chance Thunderstorms

    • 75
    • 89

    Chance Thunderstorms

    • 70
    • 89

    Rain Showers Likely

    • 62
    • 82

    Partly Sunny

    • 64
    • 81

    Mostly Sunny

    • 67
    • 85

    Chance Rain Showers

Today 14 Aug Marion

Showers with a chance of Thunderstorms through early Afternoon, then partly cloudy with a slight chance of Showers and Thunderstorms late this afternoon. Some Thunderstorms may produce heavy rainfall. Highs in the lower 80s. West Winds around 5 Mph, becoming north around 5 Mph late this afternoon. Chance of rain near 100 percent.

Tonight 14 Aug Marion

Partly cloudy. A chance of Showers and Thunderstorms toward daybreak. Humid with Lows in the lower 70s. East Winds around 5 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

    77.2 °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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