Johnston Weather Forecast

    • 54
    • 78

    Thunderstorms

    • 55
    • 77

    Slight Chance Rain Showers

    • 66
    • 84

    Chance Thunderstorms

    • 64
    • 87

    Slight Chance Rain Showers

    • 64
    • 90

    Partly Sunny

    • 63
    • 90

    Mostly Cloudy

Today 31 Mar Edgefield

Cloudy. Patchy fog in the morning. A chance of Showers and Thunderstorms in the Morning, then Showers and Thunderstorms in the afternoon. Highs around 80. Southwest Winds 10 to 15 Mph. Chance of rain 90 percent.

Tonight 31 Mar Edgefield

Cloudy. Patchy fog. Near steady temperature in the lower 60s. South Winds around 5 Mph.

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Johnston Temperature Statistics

March Temperature

Aiken Municipal Airport (14.3 miles)

  • Lowest 3 March, 2025

    25.3 °F

  • Average March

    56.9 °F

  • Highest 19 March, 2025

    80.8 °F

Climate (2020–Present)

Aiken Municipal Airport (14.3 miles)

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  • Average Low 2020–2025

    53.5 °F

  • Average 2020–2025

    63.7 °F

  • Average High 2020–2025

    75.1 °F
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