Indianapolis International Airport Weather Forecast

    • 39
    • 57

    Chance Rain Showers

    • 35
    • 55

    Sunny

    • 39
    • 63

    Mostly Sunny

    • 43
    • 68

    Partly Sunny

    • 45
    • 72

    Mostly Sunny

    • 46
    • 73

    Mostly Sunny

Today 16 Oct Marion

Mostly cloudy. A slight chance of Showers through early Afternoon, then a chance of Showers late in the afternoon. Much cooler. Less humid with Highs in the upper 50s. Northwest Winds 15 to 20 Mph with Gusts up to 35 Mph. Chance of rain 50 percent.

Tonight 16 Oct Marion

Partly cloudy. A slight chance of Showers through the late overnight. Cooler with Lows in the upper 30s. North Winds 10 to 15 Mph with Gusts up to 30 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

    66.5 °F

  • Highest 13 October, 2026

    88 °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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