Greencastle Weather Forecast

    • 26
    • 31

    Chance Snow

    • 43
    • 60

    Partly Sunny

    • 42
    • 67

    Mostly Sunny

    • 48
    • 75

    Partly Sunny

    • 49
    • 78

    Mostly Sunny

    • 35
    • 67

    Partly Sunny

Today 17 Mar Sullivan

Sunny this Morning, then mostly cloudy with a chance of snow this afternoon. Little or no snow accumulation. Highs in the lower 30s. West Winds around 5 Mph, becoming south with Gusts up to 20 Mph this afternoon. Chance of snow 40 percent.

Tonight 17 Mar Sullivan

A chance of snow in the evening. Mostly cloudy with a slight chance of freezing rain. Snow accumulation up to 1 inch possible. Ice accumulation around a trace. Not as cool. Near steady temperature around 30. South Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of precipitation 50 percent.

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Greencastle Temperature Statistics

March Temperature

Kirksville, Kirksville Regional Airport (20.5 miles)

  • Lowest 1 March, 2026

    20.6 °F

  • Average March

    46.3 °F

  • Highest 10 March, 2026

    84.9 °F

Climate (2021–Present)

Kirksville, Kirksville Regional Airport (20.5 miles)

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  • Average Low 2021–2026

    43 °F

  • Average 2021–2026

    53.7 °F

  • Average High 2021–2026

    64.6 °F
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