Indianapolis International Airport Weather Forecast

    • 48
    • 52

    Rain Likely

    • 43
    • 54

    Rain Likely

    • 44
    • 62

    Chance Rain

    • 48
    • 60

    Chance Rain

    • 15
    • 55

    Chance Rain

    • 13
    • 22

    Mostly Sunny

Today 24 Dec Marion

Areas of fog this morning. Partly cloudy. Highs in the lower 50s. Northeast Winds 5 to 10 Mph, becoming southeast this afternoon.

Tonight 24 Dec Marion

Rain likely. Patchy dense fog. Not as cool with Lows in the upper 40s. Temperature steady or slowly rising after midnight. Southeast Winds 5 to 10 Mph, becoming southwest toward daybreak. Chance of rain 70 percent.

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Indianapolis International Airport Temperature Statistics

December Temperature

Indianapolis International Airport (0.6 miles)

  • Lowest 14 December, 2025

    -4 °F

  • Average December

    27.9 °F

  • Highest 18 December, 2025

    54 °F

Climate (2020–Present)

Indianapolis International Airport (0.6 miles)

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  • Average Low 2020–2025

    46.6 °F

  • Average 2020–2025

    55.4 °F

  • Average High 2020–2025

    64.7 °F
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