Indianapolis International Airport Weather Forecast

    • 40
    • 68

    Sunny

    • 42
    • 70

    Mostly Sunny

    • 45
    • 71

    Sunny

    • 47
    • 71

    Mostly Sunny

    • 45
    • 70

    Mostly Sunny

    • 48
    • 72

    Mostly Sunny

Today 19 Oct Marion

Sunny. Highs in the upper 60s. Light and variable Winds, becoming east around 5 Mph late in the afternoon.

Tonight 19 Oct Marion

Clear. Lows around 40. Northeast Winds around 5 Mph.

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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

    66.3 °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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