Lake Dardanelle Weather Forecast

    • 65
    • 83

    Becoming Sunny

    • 69
    • 86

    Partly Sunny

    • 73
    • 90

    Mostly Cloudy

    • 70
    • 84

    Rain Showers Likely

    • 66
    • 79

    Rain Showers Likely

    • 66
    • 78

    Chance Rain Showers

Today 28 Sep Southern Johnson County

Mostly sunny. Highs in the mid 80s. East Winds around 5 Mph.

Tonight 28 Sep Southern Johnson County

Mostly clear. Lows in the lower 60s. East Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Dardanelle Temperature Statistics

September Temperature

Russelville Municipal Airport (15.5 miles)

  • Lowest 25 September, 2026

    57 °F

  • Average September

    83.9 °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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