Natural Falls State Park Weather Forecast

    • 75
    • 101

    Slight Chance Thunderstorms

    • 75
    • 102

    Slight Chance Thunderstorms

    • 73
    • 101

    Hot

    • 74
    • 100

    Hot

    • 73
    • 100

    Hot

    • 70
    • 97

    Slight Chance Rain Showers

    • 69
    • 95

    Mostly Sunny

Today 5 Sep Delaware

Sunny, hot. Near steady temperature around 100. Southeast Winds around 5 Mph.

Tonight 5 Sep Delaware

Mostly clear. Lows in the mid 70s. Light and variable Winds.

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Natural Falls State Park Temperature Statistics

September Temperature

Siloam Springs, Smith Field Airport (9.9 miles)

  • Lowest 1 September, 2026

    72 °F

  • Average September

    88.9 °F

  • Highest 1 September, 2026

    100.9 °F

Climate (2021–2026)

Siloam Springs, Smith Field Airport (9.9 miles)

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  • Average Low 2021–2026

    50.3 °F

  • Average 2021–2026

    60.3 °F

  • Average High 2021–2026

    70.8 °F
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