Greenbriar Weather Forecast

    • 24
    • 28

    Increasing Clouds

    • 18
    • 35

    Mostly Cloudy

    • 19
    • 28

    Partly Sunny

    • 24
    • 37

    Mostly Cloudy

    • 23
    • 36

    Partly Sunny

    • 28
    • 39

    Mostly Cloudy

Today 30 Dec Marion

Cloudy. A slight chance of snow Showers in the afternoon. Highs in the mid 30s. West Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of snow 20 percent.

Tonight 30 Dec Marion

Mostly cloudy with a 50 percent chance of snow Showers. Cold with Lows around 20.

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Greenbriar Temperature Statistics

December Temperature

Indianapolis, Eagle Creek Airpark (7.5 miles)

  • Lowest 14 December, 2025

    -2.9 °F

  • Average December

    31.8 °F

  • Highest 26 December, 2025

    63 °F

Climate (2020–Present)

Indianapolis, Eagle Creek Airpark (7.5 miles)

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  • Average Low 2020–2025

    46.9 °F

  • Average 2020–2025

    55.9 °F

  • Average High 2020–2025

    65 °F
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