Port Huron Weather Forecast

    • 62
    • 75

    Slight Chance Thunderstorms

    • 60
    • 74

    Mostly Sunny

    • 59
    • 78

    Mostly Sunny

    • 64
    • 85

    Slight Chance Thunderstorms

Today 28 Jul St. Clair

Cloudy with a chance of Sprinkles early in the Afternoon, then partly cloudy in the late afternoon. Near steady temperature in the mid 70s. North Winds 10 to 15 Mph with Gusts up to 30 Mph.

Tonight 28 Jul St. Clair

Mostly clear. Lows in the upper 50s. North Winds 5 to 15 Mph with Gusts up to 25 Mph.

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Port Huron Temperature Statistics

July Temperature

St Clair County International Airport (6.8 miles)

  • Lowest 23 July, 2026

    48.2 °F

  • Average July

    72.9 °F

  • Highest 1 July, 2026

    95 °F

Climate (2021–2026)

St Clair County International Airport (6.8 miles)

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  • Average Low 2021–2026

    39.8 °F

  • Average 2021–2026

    49.5 °F

  • Average High 2021–2026

    58.8 °F
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