Princeton Weather Forecast

    • 75
    • 98

    Hot

    • 64
    • 96

    Chance Thunderstorms

    • 64
    • 79

    Chance Rain Showers

    • 63
    • 80

    Chance Rain Showers

    • 63
    • 82

    Chance Rain Showers

    • 65
    • 87

    Slight Chance Rain Showers

Today 4 Sep Collin

Sunny. Highs in the upper 90s. Southwest Winds 5 to 10 Mph.

Tonight 4 Sep Collin

Mostly clear in the Evening, then becoming mostly cloudy. Lows in the mid 70s. South Winds 5 to 10 Mph.

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Princeton Temperature Statistics

September Temperature

McKinney - McKinney National Airport (5 miles)

  • Lowest 2 September, 2025

    70 °F

  • Average September

    78.4 °F

  • Highest 2 September, 2025

    89.1 °F

Climate (2020–Present)

McKinney - McKinney National Airport (5 miles)

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  • Average Low 2020–2025

    55.7 °F

  • Average 2020–2025

    66.4 °F

  • Average High 2020–2025

    77.2 °F
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