New Castle Weather Forecast

    • 31
    • 40

    Increasing Clouds

    • 36
    • 47

    Mostly Cloudy

    • 16
    • 40

    Rain/Snow Likely

    • 16
    • 24

    Slight Chance Snow

    • 21
    • 32

    Chance Snow

    • 11
    • 28

    Chance Snow

Today 12 Jan Henry

Mostly sunny. Not as cool with Highs around 40. Southwest Winds 10 to 15 Mph with Gusts up to 35 Mph.

Tonight 12 Jan Henry

Partly cloudy and cold. Near steady temperature in the mid 20s. Southwest Winds around 10 Mph with Gusts up to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

New Castle Temperature Statistics

January Temperature

Anderson Municipal Airport (17.4 miles)

  • Lowest 2 January, 2026

    12.2 °F

  • Average January

    35.2 °F

  • Highest 9 January, 2026

    60.8 °F

Climate (2021–Present)

Anderson Municipal Airport (17.4 miles)

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  • Average Low 2021–2026

    43.9 °F

  • Average 2021–2026

    51.4 °F

  • Average High 2021–2026

    62.1 °F
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