Natural Falls State Park Weather Forecast

    • 65
    • 90

    Slight Chance Thunderstorms

    • 64
    • 88

    Thunderstorms Likely

    • 63
    • 81

    Chance Thunderstorms

    • 65
    • 84

    Chance Thunderstorms

    • 65
    • 83

    Chance Thunderstorms

    • 62
    • 83

    Chance Thunderstorms

Today 17 Sep Delaware

Sunny. A slight chance of Showers and Thunderstorms this afternoon. Highs in the lower 90s. Southwest Winds around 5 Mph. Chance of rain 20 percent.

Tonight 17 Sep Delaware

Partly cloudy with a slight chance of Showers and Thunderstorms. Lows in the upper 60s. Light and variable Winds, becoming east around 5 Mph after midnight. Chance of rain 20 percent.

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  • Temperature Real-Time

Natural Falls State Park Temperature Statistics

September Temperature

Siloam Springs, Smith Field Airport (9.9 miles)

  • Lowest 7 September, 2025

    53.1 °F

  • Average September

    71.1 °F

  • Highest 13 September, 2025

    90 °F

Climate (2020–Present)

Siloam Springs, Smith Field Airport (9.9 miles)

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  • Average Low 2020–2025

    49.4 °F

  • Average 2020–2025

    59.3 °F

  • Average High 2020–2025

    69.6 °F
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