Marion County Lake Weather Forecast

    • 60
    • 79

    Chance Thunderstorms

    • 53
    • 69

    Rain Showers Likely

    • 55
    • 77

    Partly Sunny

    • 60
    • 76

    Rain Showers Likely

    • 58
    • 70

    Chance Rain Showers

    • 57
    • 71

    Slight Chance Thunderstorms

Today 24 Aug Marion

Partly sunny in the Morning, then becoming mostly cloudy. Highs in the upper 70s. East Winds around 5 Mph.

Tonight 24 Aug Marion

Partly cloudy in the Evening, then mostly cloudy with a chance of Showers and Thunderstorms after midnight. Lows around 60. East Winds around 5 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Marion County Lake Temperature Statistics

August Temperature

Newton, Newton City/County Airport (24.2 miles)

  • Lowest 2 August, 2025

    60.8 °F

  • Average August

    79 °F

  • Highest 8 August, 2025

    100.9 °F

Climate (2020–Present)

Newton, Newton City/County Airport (24.2 miles)

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  • Average Low 2020–2025

    46.5 °F

  • Average 2020–2025

    57.1 °F

  • Average High 2020–2025

    68.4 °F
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