Indianapolis International Airport Weather Forecast

    • 72
    • 93

    Chance Rain Showers

    • 70
    • 87

    Chance Rain Showers

    • 66
    • 84

    Partly Sunny

    • 71
    • 90

    Chance Rain Showers

    • 66
    • 86

    Chance Rain Showers

    • 63
    • 83

    Chance Rain Showers

    • 62
    • 79

    Chance Rain Showers

Today 16 Sep Marion

Partly cloudy. A chance of Showers and Thunderstorms late. Hot with Highs in the lower 90s. Southwest Winds around 5 Mph, becoming west around 5 Mph late. Chance of rain 40 percent.

Tonight 16 Sep Marion

Partly cloudy with a slight chance of Showers and Thunderstorms. Lows in the lower 70s. South Winds around 5 Mph. Chance of rain 20 percent.

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Indianapolis International Airport Temperature Statistics

September Temperature

Indianapolis International Airport (0.6 miles)

  • Lowest 14 September, 2026

    59 °F

  • Average September

    79.2 °F

  • Highest 4 September, 2026

    97.6 °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

    65.3 °F
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