Indianapolis International Airport Weather Forecast

    • 67
    • 85

    Mostly Sunny

    • 68
    • 81

    Rain Showers

    • 68
    • 83

    Chance Thunderstorms

    • 67
    • 83

    Slight Chance Thunderstorms

    • 70
    • 85

    Partly Sunny

    • 71
    • 86

    Partly Sunny

Today 5 Aug Marion

Sunny. Highs in the mid 80s. Light and variable Winds, becoming southwest around 5 Mph.

Tonight 5 Aug Marion

Partly cloudy. Isolated Showers and Thunderstorms toward daybreak. Lows in the upper 60s. South Winds around 5 Mph. Chance of rain 20 percent.

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Indianapolis International Airport Temperature Statistics

August Temperature

Indianapolis International Airport (0.6 miles)

  • Lowest 2 August, 2026

    66.9 °F

  • Average August

    72.6 °F

  • Highest 1 August, 2026

    79.6 °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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