Indianapolis International Airport Weather Forecast

    • 44
    • 71

    Mostly Sunny

    • 43
    • 70

    Mostly Sunny

    • 43
    • 71

    Partly Sunny

    • 45
    • 73

    Partly Sunny

    • 47
    • 74

    Mostly Cloudy

    • 46
    • 68

    Mostly Cloudy

Today 22 Oct Marion

Sunny. Patchy fog toward daybreak. Highs in the lower 70s. Northeast Winds around 5 Mph.

Tonight 22 Oct Marion

Clear. Lows in the mid 40s. Northeast Winds around 5 Mph through the late Overnight, becoming light and variable.

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Indianapolis International Airport Temperature Statistics

October Temperature

Indianapolis International Airport (0.6 miles)

  • Lowest 18 October, 2026

    37.9 °F

  • Average October

    64.2 °F

  • Highest 13 October, 2026

    88.6 °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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