Square Air Airport Weather Forecast

    • 72
    • 92

    Rain Showers Likely

    • 68
    • 83

    Rain Showers

    • 65
    • 80

    Rain Showers

    • 64
    • 78

    Rain Showers Likely

    • 61
    • 80

    Chance Rain Showers

    • 57
    • 79

    Mostly Sunny

Today 30 Sep Collin

Cloudy. A 40 percent chance of Showers and Thunderstorms this afternoon. Heavy rainfall possible this afternoon. Highs in the lower 90s. South Winds 10 to 15 Mph.

Tonight 30 Sep Collin

Cloudy with a chance of Thunderstorms. A chance of Showers in the Evening, then Showers likely after midnight. Heavy rainfall possible. Lows in the lower 70s. South Winds 10 to 15 Mph. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Square Air Airport Temperature Statistics

September Temperature

McKinney - McKinney National Airport (4.3 miles)

  • Lowest 26 September, 2026

    64.7 °F

  • Average September

    86.1 °F

  • Highest 12 September, 2026

    101.6 °F

Climate (2021–2026)

McKinney - McKinney National Airport (4.3 miles)

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  • Average Low 2021–2026

    56.7 °F

  • Average 2021–2026

    67.6 °F

  • Average High 2021–2026

    78.6 °F
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