Indianapolis International Airport Weather Forecast

    • 48
    • 66

    Rain Showers

    • 42
    • 63

    Partly Sunny

    • 37
    • 56

    Mostly Sunny

    • 35
    • 59

    Mostly Sunny

    • 45
    • 60

    Chance Rain Showers

    • 48
    • 59

    Chance Rain Showers

Today 20 Oct Marion

Sunny. Highs in the mid 60s. South Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 20 Oct Marion

Clear this Afternoon, then partly cloudy with scattered Showers toward daybreak. Lows in the upper 40s. South Winds 10 to 15 Mph, becoming southwest toward daybreak. Gusts up to 30 Mph. Chance of rain 40 percent.

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Indianapolis International Airport Temperature Statistics

October Temperature

Indianapolis International Airport (0.6 miles)

  • Lowest 9 October, 2025

    44.1 °F

  • Average October

    64.7 °F

  • Highest 3 October, 2025

    84.9 °F

Climate (2020–Present)

Indianapolis International Airport (0.6 miles)

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  • Average Low 2020–2025

    46.7 °F

  • Average 2020–2025

    55.5 °F

  • Average High 2020–2025

    64.9 °F
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