Indianapolis International Airport Weather Forecast

    • 47
    • 70

    Mostly Sunny

    • 49
    • 74

    Mostly Sunny

    • 43
    • 68

    Sunny

    • 45
    • 69

    Sunny

    • 51
    • 75

    Mostly Sunny

    • 51
    • 77

    Mostly Sunny

Today 3 Oct Marion

Sunny. Highs in the upper 60s. East Winds 5 to 10 Mph. Gusts up to 20 Mph through early afternoon.

Tonight 3 Oct Marion

Mostly clear. Lows in the mid 40s. Northeast Winds around 5 Mph.

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Indianapolis International Airport Temperature Statistics

October Temperature

Indianapolis International Airport (0.6 miles)

  • Lowest 1 October, 2026

    66 °F

  • Average October

    76 °F

  • Highest 1 October, 2026

    84.9 °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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