Johnston Weather Forecast

    • 42
    • 58

    Mostly Cloudy

    • 46
    • 61

    Rain

    • 31
    • 57

    Sunny

    • 37
    • 59

    Mostly Sunny

    • 41
    • 65

    Partly Sunny

    • 37
    • 60

    Partly Sunny

Today 17 Dec Edgefield

Partly sunny this Morning, then becoming mostly cloudy. Highs in the upper 50s. Southwest Winds around 5 Mph.

Tonight 17 Dec Edgefield

Mostly cloudy. Lows in the lower 40s. Light and variable Winds, becoming east around 5 Mph after midnight.

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Johnston Temperature Statistics

December Temperature

Aiken Municipal Airport (14.3 miles)

  • Lowest 14 December, 2025

    26.8 °F

  • Average December

    44 °F

  • Highest 13 December, 2025

    68 °F

Climate (2020–Present)

Aiken Municipal Airport (14.3 miles)

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  • Average Low 2020–2025

    53.4 °F

  • Average 2020–2025

    63.7 °F

  • Average High 2020–2025

    75.1 °F
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