Indianapolis International Airport Weather Forecast

    • 59
    • 66

    Rain Showers

    • 59
    • 75

    Chance Rain Showers

    • 62
    • 80

    Rain Showers Likely

    • 63
    • 80

    Chance Rain Showers

    • 65
    • 82

    Chance Thunderstorms

    • 66
    • 81

    Rain Showers Likely

Today 22 May Marion

Mostly cloudy. Scattered Showers with isolated Thunderstorms through early afternoon. Showers with isolated Thunderstorms late this afternoon. Highs in the upper 60s. East Winds 5 to 10 Mph. Gusts up to 20 Mph. Chance of rain 80 percent.

Tonight 22 May Marion

Cloudy with isolated Thunderstorms. Numerous Showers through the late Overnight, then a chance of Showers toward daybreak. Near steady temperature in the lower 60s. East Winds 5 to 10 Mph, becoming southeast toward daybreak. Chance of rain 70 percent.

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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

    59.3 °F

  • Highest 19 May, 2026

    84 °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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