Fort Mill Weather Forecast

    • 72
    • 86

    Rain Showers Likely

    • 72
    • 86

    Chance Thunderstorms

    • 72
    • 88

    Slight Chance Thunderstorms

    • 70
    • 86

    Slight Chance Thunderstorms

    • 70
    • 88

    Mostly Sunny

    • 71
    • 90

    Mostly Sunny

Today 13 Aug York

Patchy fog in the morning. Mostly cloudy with a chance of Showers and Thunderstorms. Humid with Highs in the mid 80s. Southwest Winds 5 to 10 Mph. Chance of rain 50 percent.

Tonight 13 Aug York

A chance of Thunderstorms in the evening. Mostly cloudy with a chance of Showers. Lows in the lower 70s. Southwest Winds around 5 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Fort Mill Temperature Statistics

August Temperature

Rock Hill, Rock Hill - York County Airport (6.2 miles)

  • Lowest 5 August, 2025

    63.6 °F

  • Average August

    72.4 °F

  • Highest 1 August, 2025

    92.6 °F

Climate (2020–Present)

Rock Hill, Rock Hill - York County Airport (6.2 miles)

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  • Average Low 2020–2025

    51.2 °F

  • Average 2020–2025

    61.7 °F

  • Average High 2020–2025

    73.1 °F
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