Indianapolis International Airport Weather Forecast

    • 70
    • 87

    Severe Tstms

    • 70
    • 87

    Rain Showers

    • 68
    • 84

    Rain Showers

    • 66
    • 82

    Chance Rain Showers

    • 70
    • 84

    Slight Chance Thunderstorms

    • 69
    • 87

    Chance Thunderstorms

Today 11 Aug Marion

Partly cloudy through early Afternoon, then becoming mostly cloudy. A chance of Showers and Thunderstorms through early Afternoon, then Showers and Thunderstorms likely late this afternoon. Some Thunderstorms may be severe with heavy rainfall. Highs in the upper 80s. West Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 70 percent.

Tonight 11 Aug Marion

Numerous Showers. Numerous Thunderstorms through the late Overnight, then scattered Thunderstorms toward daybreak. Some Thunderstorms may produce heavy rainfall through the late overnight. Humid with Lows around 70. South Winds around 5 Mph. Chance of rain 70 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 °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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