St Thomas Weather Forecast

    • 66
    • 89

    Chance Thunderstorms

    • 59
    • 85

    Mostly Sunny

    • 60
    • 81

    Mostly Sunny

    • 65
    • 85

    Partly Sunny

    • 70
    • 91

    Mostly Sunny

    • 73
    • 96

    Chance Thunderstorms

Today 20 Jul Franklin

Partly sunny. Showers likely this Morning, then a chance of Showers and Thunderstorms this afternoon. Some Thunderstorms may produce gusty Winds this afternoon. Very warm with Highs in the upper 80s. West Winds 5 to 10 Mph. Chance of rain 60 percent.

Tonight 20 Jul Franklin

Partly cloudy. A slight chance of Showers and Thunderstorms in the evening. Some Thunderstorms may produce gusty Winds in the evening. Humid with Lows in the mid 60s. Northwest Winds 5 to 10 Mph. Chance of rain 20 percent.

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St Thomas Temperature Statistics

July Temperature

Hagerstown, Washington County Regional Airport (14.9 miles)

  • Lowest 5 July, 2025

    63.6 °F

  • Average July

    80.6 °F

  • Highest 7 July, 2025

    94.6 °F

Climate (2020–Present)

Hagerstown, Washington County Regional Airport (14.9 miles)

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  • Average Low 2020–2025

    48 °F

  • Average 2020–2025

    56.9 °F

  • Average High 2020–2025

    65.9 °F
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