Lake Dardanelle Weather Forecast

    • 73
    • 94

    Rain Showers

    • 73
    • 87

    Rain Showers Likely

    • 75
    • 94

    Mostly Sunny

    • 75
    • 95

    Mostly Sunny

    • 75
    • 94

    Mostly Sunny

    • 75
    • 96

    Chance Thunderstorms

Today 10 Sep Southern Johnson County

Mostly sunny. Showers likely with a chance of Thunderstorms. Highs in the mid 90s. West Winds around 5 Mph. Chance of rain 70 percent. Average rainfall 1/10 inch.

Tonight 10 Sep Southern Johnson County

A chance of Thunderstorms. A chance of Showers in the Evening, then Showers likely after midnight. Lows in the upper 60s. Northeast Winds around 5 Mph. Chance of rain 70 percent. Average rainfall 1/4 to 1/2 inch.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Dardanelle Temperature Statistics

September Temperature

Russelville Municipal Airport (15.5 miles)

  • Lowest 8 September, 2026

    69.1 °F

  • Average September

    87.7 °F

  • Highest 5 September, 2026

    103.6 °F

Climate (2021–2026)

Russelville Municipal Airport (15.5 miles)

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  • Average Low 2021–2026

    52.5 °F

  • Average 2021–2026

    63.9 °F

  • Average High 2021–2026

    75.7 °F
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