Marysville Weather Forecast

    • 65
    • 86

    Rain Showers

    • 62
    • 80

    Slight Chance Rain Showers

    • 61
    • 82

    Mostly Sunny

    • 64
    • 85

    Mostly Sunny

    • 68
    • 89

    Mostly Sunny

    • 70
    • 92

    Partly Sunny

Today 9 Jul St. Clair

Partly cloudy with a slight chance of Showers in the Morning, then Showers and a chance of Thunderstorms in the afternoon. Highs in the mid 80s. West Winds up to 10 Mph. Chance of rain 80 percent.

Tonight 9 Jul St. Clair

Mostly cloudy. A chance of Showers in the evening. Lows in the mid 60s. Northeast Winds up to 5 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Marysville Temperature Statistics

July Temperature

St Clair County International Airport (1.9 miles)

  • Lowest 6 July, 2026

    62.6 °F

  • Average July

    77.6 °F

  • Highest 1 July, 2026

    95 °F

Climate (2021–2026)

St Clair County International Airport (1.9 miles)

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  • Average Low 2021–2026

    39.8 °F

  • Average 2021–2026

    49.5 °F

  • Average High 2021–2026

    58.7 °F
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