Johnston Weather Forecast

    • 75
    • 95

    Increasing Clouds

    • 73
    • 92

    Rain Showers Likely

    • 70
    • 87

    Rain Showers

    • 70
    • 85

    Rain Showers Likely

    • 70
    • 85

    Rain Showers Likely

    • 72
    • 89

    Chance Thunderstorms

Today 21 Jul Edgefield

Sunny. Highs in the mid 90s. South Winds 5 to 10 Mph.

Tonight 21 Jul Edgefield

Mostly clear. Lows in the mid 70s. South Winds around 5 Mph.

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  • Temperature Real-Time

Johnston Temperature Statistics

July Temperature

Aiken Municipal Airport (14.3 miles)

  • Lowest 2 July, 2026

    71.1 °F

  • Average July

    81.5 °F

  • Highest 17 July, 2026

    98.4 °F

Climate (2021–2026)

Aiken Municipal Airport (14.3 miles)

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  • Average Low 2021–2026

    53.5 °F

  • Average 2021–2026

    63.9 °F

  • Average High 2021–2026

    75.4 °F
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