Indianapolis International Airport Weather Forecast

    • 62
    • 82

    Mostly Sunny

    • 66
    • 84

    Mostly Sunny

    • 67
    • 84

    Chance Thunderstorms

    • 66
    • 82

    Chance Thunderstorms

    • 68
    • 84

    Slight Chance Thunderstorms

    • 70
    • 86

    Slight Chance Thunderstorms

Today 4 Aug Marion

Sunny. Patchy fog toward daybreak. Highs in the lower 80s. Light and variable Winds, becoming northeast around 5 Mph late this afternoon.

Tonight 4 Aug Marion

Clear. Lows in the lower 60s. Light and variable Winds.

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Indianapolis International Airport Temperature Statistics

August Temperature

Indianapolis International Airport (0.6 miles)

  • Lowest 1 August, 2026

    69.1 °F

  • Average August

    72.8 °F

  • Highest 1 August, 2026

    78.1 °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

    65.2 °F
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