Lake Dardanelle Weather Forecast

    • 34
    • 64

    Rain Showers Likely

    • 41
    • 54

    Mostly Sunny

    • 42
    • 66

    Partly Sunny

    • 42
    • 56

    Mostly Cloudy

    • 51
    • 55

    Mostly Cloudy

    • 59
    • 72

    Mostly Cloudy

    • 60
    • 75

    Mostly Cloudy

Today 18 Dec Southern Johnson County

Mostly cloudy Early, then clearing. A chance of Showers with a slight chance of Thunderstorms early. Highs in the lower 60s. Temperature falling into the mid 50s. West Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 50 percent. Average rainfall less than 1/10 inch.

Tonight 18 Dec Southern Johnson County

Mostly clear. Much Colder with Lows in the upper 20s. West Winds 10 to 15 Mph with Gusts up to 30 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Dardanelle Temperature Statistics

December Temperature

Russelville Municipal Airport (15.5 miles)

  • Lowest 15 December, 2025

    18 °F

  • Average December

    37.6 °F

  • Highest 12 December, 2025

    66.2 °F

Climate (2020–Present)

Russelville Municipal Airport (15.5 miles)

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  • Average Low 2020–2025

    51.6 °F

  • Average 2020–2025

    62.8 °F

  • Average High 2020–2025

    74.3 °F
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