Indianapolis International Airport Weather Forecast

    • 66
    • 85

    Becoming Sunny

    • 69
    • 88

    Mostly Sunny

    • 63
    • 81

    Rain Showers

    • 55
    • 74

    Rain Showers Likely

    • 40
    • 63

    Partly Sunny

    • 35
    • 58

    Mostly Sunny

    • 45
    • 65

    Mostly Sunny

Today 12 Oct Marion

Partly cloudy. Highs around 70.

Tonight 12 Oct Marion

Mostly clear. Warmer with Lows in the upper 60s. Southwest Winds around 10 Mph. Gusts up to 20 Mph late this afternoon.

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Indianapolis International Airport Temperature Statistics

October Temperature

Indianapolis International Airport (0.6 miles)

  • Lowest 5 October, 2026

    47.6 °F

  • Average October

    65 °F

  • Highest 1 October, 2026

    87.7 °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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