Newton Weather Forecast

    • 10
    • 40

    Slight Chance Snow

    • 28
    • 33

    Partly Sunny

    • 18
    • 40

    Partly Sunny

    • 27
    • 34

    Mostly Cloudy

    • 33
    • 43

    Mostly Cloudy

    • 29
    • 46

    Mostly Cloudy

Today 18 Dec Jasper

Partly sunny. A slight chance of snow this afternoon. Windy with Highs around 40. Temperature falling into the lower 20s this afternoon. West Winds 25 to 30 Mph with Gusts up to 45 Mph. Chance of snow 20 percent.

Tonight 18 Dec Jasper

Mostly cloudy in the Evening, then clearing. Breezy and much cooler with Lows around 10 above. Northwest Winds around 25 Mph, Diminishing to 15 to 20 Mph after midnight. Gusts up to 45 Mph.

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Newton Temperature Statistics

December Temperature

Newton Municipal Airport - Earl Johnson Field (2.5 miles)

  • Lowest 14 December, 2025

    -9.4 °F

  • Average December

    18.9 °F

  • Highest 9 December, 2025

    46.4 °F

Climate (2020–Present)

Newton Municipal Airport - Earl Johnson Field (2.5 miles)

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  • Average Low 2020–2025

    41.4 °F

  • Average 2020–2025

    51.2 °F

  • Average High 2020–2025

    61.1 °F
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