Castle Grove Weather Forecast

    • -6
    • 4

    Cold

    • 13
    • 27

    Partly Sunny

    • 23
    • 37

    Mostly Cloudy

    • 32
    • 37

    Chance Rain

    • 5
    • 40

    Partly Sunny

    • 21
    • 31

    Mostly Cloudy

Today 14 Dec Jones

Sunny, cold with Highs around 5 above. Northwest Winds around 10 Mph with Gusts up to 20 Mph, becoming west this afternoon. Wind chill Values as low as 25 below.

Tonight 14 Dec Jones

Mostly clear in the Evening, then becoming partly cloudy. Cold with Lows around 6 below. Temperature rising to around 6 above after midnight. South Winds 5 to 10 Mph with Gusts up to 20 Mph, increasing to 15 to 20 Mph with Gusts up to 30 Mph after midnight. Wind chill Values as low as 22 below.

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Castle Grove Temperature Statistics

December Temperature

Monticello Regional Airport (8.1 miles)

  • Lowest 4 December, 2025

    -13 °F

  • Average December

    19.2 °F

  • Highest 9 December, 2025

    41 °F

Climate (2020–Present)

Monticello Regional Airport (8.1 miles)

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  • Average Low 2020–2025

    37.7 °F

  • Average 2020–2025

    48.5 °F

  • Average High 2020–2025

    58.6 °F
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