Newton Weather Forecast

    • 63
    • 79

    Rain Showers Likely

    • 59
    • 76

    Chance Rain Showers

    • 62
    • 79

    Chance Thunderstorms

    • 62
    • 80

    Chance Thunderstorms

    • 58
    • 80

    Chance Thunderstorms

    • 55
    • 75

    Chance Rain Showers

Today 18 Sep Jasper

Partly sunny late this Morning, then becoming mostly cloudy. A chance of Showers. A chance of Thunderstorms this afternoon. Highs in the upper 70s. Southwest Winds around 5 Mph. Chance of rain 50 percent.

Tonight 18 Sep Jasper

A chance of Thunderstorms. Showers Likely, mainly in the evening. Humid with Lows in the lower 60s. South Winds around 5 Mph. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Newton Temperature Statistics

September Temperature

Newton Municipal Airport - Earl Johnson Field (2.5 miles)

  • Lowest 4 September, 2025

    42.8 °F

  • Average September

    67.6 °F

  • Highest 13 September, 2025

    96.8 °F

Climate (2020–Present)

Newton Municipal Airport - Earl Johnson Field (2.5 miles)

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  • Average Low 2020–2025

    41.3 °F

  • Average 2020–2025

    51.1 °F

  • Average High 2020–2025

    61 °F
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