Indianapolis International Airport Weather Forecast

    • 50
    • 75

    Mostly Sunny

    • 51
    • 76

    Mostly Sunny

    • 59
    • 77

    Partly Sunny

    • 65
    • 77

    Chance Rain Showers

    • 63
    • 76

    Rain Showers Likely

    • 60
    • 71

    Chance Rain Showers

Today 27 Sep Marion

Sunny. Highs in the mid 70s. North Winds around 5 Mph.

Tonight 27 Sep Marion

Clear. Lows around 50. North Winds around 5 Mph.

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Indianapolis International Airport Temperature Statistics

September Temperature

Indianapolis International Airport (0.6 miles)

  • Lowest 22 September, 2026

    57.7 °F

  • Average September

    76.6 °F

  • Highest 4 September, 2026

    97.6 °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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