Marysville Weather Forecast

    • 61
    • 81

    Chance Thunderstorms

    • 59
    • 79

    Mostly Sunny

    • 61
    • 81

    Mostly Sunny

    • 64
    • 83

    Slight Chance Rain Showers

    • 65
    • 81

    Chance Rain Showers

    • 64
    • 83

    Chance Rain Showers

Today 28 Jul Union

Partly cloudy. A chance of Showers and Thunderstorms in the morning. Humid with Highs in the lower 80s. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 50 percent.

Tonight 28 Jul Union

Partly cloudy in the Evening, then clearing. Lows in the lower 60s. North Winds 10 to 15 Mph with Gusts up to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Marysville Temperature Statistics

July Temperature

Marysville Union County Airport (0.6 miles)

  • Lowest 23 July, 2026

    50 °F

  • Average July

    75.1 °F

  • Highest 3 July, 2026

    95 °F

Climate (2021–2026)

Marysville Union County Airport (0.6 miles)

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  • Average Low 2021–2026

    43.1 °F

  • Average 2021–2026

    52.7 °F

  • Average High 2021–2026

    62.5 °F
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