Indianapolis International Airport Weather Forecast

    • 70
    • 89

    Increasing Clouds

    • 64
    • 80

    Rain Showers

    • 52
    • 76

    Rain Showers

    • 38
    • 59

    Partly Sunny

    • 36
    • 57

    Mostly Sunny

    • 45
    • 66

    Partly Sunny

    • 48
    • 68

    Partly Sunny

Today 13 Oct Marion

Mostly sunny. Highs in the upper 80s. Southwest Winds 5 to 10 Mph. Gusts up to 20 Mph late.

Tonight 13 Oct Marion

Clear through the late Overnight, then partly cloudy with scattered Showers with isolated Thunderstorms toward daybreak. Lows around 70. Southwest Winds around 5 Mph. Chance of rain 50 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 °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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