Indianapolis International Airport Weather Forecast

    • 57
    • 78

    Increasing Clouds

    • 64
    • 79

    Rain Showers Likely

    • 64
    • 80

    Rain Showers Likely

    • 61
    • 82

    Partly Sunny

    • 61
    • 79

    Mostly Cloudy

    • 58
    • 75

    Slight Chance Thunderstorms

Today 25 May Marion

Mostly sunny toward Daybreak, then becoming partly cloudy. Patchy fog toward daybreak. Highs in the upper 70s. Northeast Winds 5 to 10 Mph.

Tonight 25 May Marion

Partly cloudy. Lows in the upper 50s. East Winds around 5 Mph.

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Indianapolis International Airport Temperature Statistics

May Temperature

Indianapolis International Airport (0.6 miles)

  • Lowest 3 May, 2026

    36.6 °F

  • Average May

    60 °F

  • Highest 19 May, 2026

    85.6 °F

Climate (2021–Present)

Indianapolis International Airport (0.6 miles)

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  • Average Low 2021–2026

    46.7 °F

  • Average 2021–2026

    55.7 °F

  • Average High 2021–2026

    65.1 °F
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