Lake Dardanelle Weather Forecast

    • 64
    • 85

    Increasing Clouds

    • 64
    • 84

    Partly Sunny

    • 68
    • 86

    Partly Sunny

    • 68
    • 87

    Mostly Cloudy

    • 70
    • 88

    Slight Chance Thunderstorms

    • 70
    • 88

    Chance Rain Showers

Today 23 Sep Southern Johnson County

Sunny. Highs in the upper 80s. Northeast Winds 5 to 10 Mph.

Tonight 23 Sep Southern Johnson County

Mostly clear in the Evening, then becoming partly cloudy. Lows around 60. Northeast Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Dardanelle Temperature Statistics

September Temperature

Russelville Municipal Airport (15.5 miles)

  • Lowest 20 September, 2026

    66.7 °F

  • Average September

    85.7 °F

  • Highest 8 September, 2026

    104.6 °F

Climate (2021–2026)

Russelville Municipal Airport (15.5 miles)

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  • Average Low 2021–2026

    52.6 °F

  • Average 2021–2026

    64 °F

  • Average High 2021–2026

    75.7 °F
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