Indianapolis International Airport Weather Forecast

    • 60
    • 79

    Slight Chance Rain Showers

    • 56
    • 77

    Rain Showers

    • 40
    • 59

    Chance Rain Showers

    • 35
    • 56

    Sunny

    • 38
    • 64

    Mostly Sunny

    • 45
    • 69

    Partly Sunny

    • 45
    • 71

    Mostly Sunny

Today 14 Oct Marion

Mostly clear. Lows in the mid 40s. Highs in the lower 70s.

Tonight 14 Oct Marion

Mostly cloudy. A slight chance of Showers toward daybreak. Lows around 60. Northeast Winds 5 to 10 Mph. Chance of rain 20 percent.

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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

    65.5 °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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