Port Republic Weather Forecast

    • 70
    • 90

    Rain Showers Likely

    • 70
    • 80

    Chance Rain Showers

    • 72
    • 81

    Rain Showers Likely

    • 71
    • 84

    Chance Thunderstorms

    • 70
    • 84

    Partly Sunny

    • 72
    • 84

    Mostly Sunny

Today 10 Sep Calvert

Mostly sunny. A slight chance of Showers and Thunderstorms in the afternoon. Hot with Highs around 90. West Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 10 Sep Calvert

Showers likely with a chance of Thunderstorms. Lows in the upper 60s. Northwest Winds around 5 Mph. Chance of rain 70 percent.

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  • Temperature Real-Time

Port Republic Temperature Statistics

September Temperature

St Marys County Airport (12.4 miles)

  • Lowest 7 September, 2026

    62.6 °F

  • Average September

    76.3 °F

  • Highest 1 September, 2026

    93.9 °F

Climate (2021–2026)

St Marys County Airport (12.4 miles)

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  • Average Low 2021–2026

    49.5 °F

  • Average 2021–2026

    58.1 °F

  • Average High 2021–2026

    67 °F
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