Indianapolis International Airport Weather Forecast

    • 51
    • 64

    Mostly Cloudy

    • 52
    • 69

    Decreasing Clouds

    • 62
    • 70

    Rain Showers

    • 61
    • 78

    Chance Rain Showers

    • 62
    • 80

    Chance Thunderstorms

    • 64
    • 79

    Chance Rain Showers

    • 66
    • 80

    Chance Thunderstorms

Today 20 May Marion

Rain. Much cooler. Near steady temperature around 60. Northeast Winds 5 to 10 Mph. Chance of rain near 100 percent.

Tonight 20 May Marion

Mostly cloudy. Lows in the lower 50s. Northeast Winds 5 to 10 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

    58.5 °F

  • Highest 17 May, 2026

    83.6 °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

    65.2 °F
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