Port Huron Weather Forecast

    • 65
    • 86

    Mostly Sunny

    • 69
    • 90

    Chance Thunderstorms

    • 63
    • 79

    Chance Rain Showers

    • 61
    • 78

    Mostly Cloudy

    • 63
    • 78

    Chance Rain Showers

    • 62
    • 79

    Mostly Sunny

Today 15 Aug St. Clair

Sunny. Highs in the mid 80s. South Winds up to 5 Mph.

Tonight 15 Aug St. Clair

Mostly clear. Lows in the mid 60s. South Winds up to 5 Mph.

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Port Huron Temperature Statistics

August Temperature

St Clair County International Airport (6.8 miles)

  • Lowest 2 August, 2025

    46.4 °F
  • Average August

    71.5 °F
  • Highest 10 August, 2025

    89.6 °F

Climate (2020–Present)

St Clair County International Airport (6.8 miles)

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  • Average Low 2020–2025

    40 °F
  • Average 2020–2025

    49.6 °F
  • Average High 2020–2025

    58.6 °F
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