Tracy Weather Forecast

    • 62
    • 76

    Thunderstorms Likely

    • 61
    • 77

    Chance Thunderstorms

    • 58
    • 71

    Rain Showers Likely

    • 59
    • 75

    Chance Thunderstorms

    • 59
    • 79

    Slight Chance Thunderstorms

    • 55
    • 79

    Slight Chance Thunderstorms

Today 17 Sep Lyon

A chance of Thunderstorms. A chance of Showers this Morning, then Showers likely this afternoon. Not as warm with Highs in the mid 70s. West Winds around 5 Mph, becoming east this afternoon. Chance of rain 70 percent.

Tonight 17 Sep Lyon

Showers likely with a chance of Thunderstorms. Lows in the lower 60s. East Winds 5 to 10 Mph. Chance of rain 70 percent.

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Tracy Temperature Statistics

September Temperature

Tracy, Tracy Municipal Airport (1.2 miles)

  • Lowest 4 September, 2025

    39.2 °F

  • Average September

    62.5 °F

  • Highest 13 September, 2025

    89.6 °F

Climate (2020–Present)

Tracy, Tracy Municipal Airport (1.2 miles)

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  • Average Low 2020–2025

    38.2 °F

  • Average 2020–2025

    47.5 °F

  • Average High 2020–2025

    57 °F
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