Trenton Weather Forecast

    • 69
    • 92

    Chance Thunderstorms

    • 69
    • 89

    Chance Thunderstorms

    • 70
    • 91

    Partly Sunny

    • 70
    • 90

    Chance Thunderstorms

    • 67
    • 88

    Chance Thunderstorms

    • 64
    • 84

    Chance Rain Showers

Today 18 Sep Fannin

Mostly sunny. A 20 percent chance of Showers and Thunderstorms in the afternoon. Highs in the lower 90s. Temperatures falling into the mid 80s in the afternoon. South Winds around 5 Mph.

Tonight 18 Sep Fannin

Mostly clear. Lows around 70. Light and variable Winds.

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Trenton Temperature Statistics

September Temperature

McKinney - McKinney National Airport (22.4 miles)

  • Lowest 9 September, 2025

    57.9 °F

  • Average September

    77.4 °F

  • Highest 4 September, 2025

    100 °F

Climate (2020–Present)

McKinney - McKinney National Airport (22.4 miles)

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  • Average Low 2020–2025

    55.7 °F

  • Average 2020–2025

    66.4 °F

  • Average High 2020–2025

    77.3 °F
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