Castleton Weather Forecast

    • 20
    • 28

    Partly Sunny

    • 23
    • 36

    Partly Sunny

    • 22
    • 34

    Mostly Cloudy

    • 29
    • 39

    Mostly Cloudy

    • 24
    • 41

    Mostly Cloudy

    • 22
    • 34

    Mostly Cloudy

Today 1 Jan Marion

Cloudy with scattered Flurries with a slight chance of freezing drizzle toward Daybreak, then partly cloudy. Cold with Highs around 30. North Winds 5 to 10 Mph with Gusts up to 20 Mph, becoming southwest this afternoon.

Tonight 1 Jan Marion

Partly cloudy. Cold with Lows around 19. North Winds around 5 Mph.

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Castleton Temperature Statistics

January Temperature

INDIANAPOLIS (13 miles)

  • Lowest

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  • Average January

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Climate (2021–Present)

INDIANAPOLIS (13 miles)

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  • Average Low 2021–2025

    42.8 °F

  • Average 2021–2025

    52.6 °F

  • Average High 2021–2025

    62.1 °F
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