Square Air Airport Weather Forecast

    • 65
    • 82

    Increasing Clouds

    • 33
    • 78

    Breezy

    • 27
    • 44

    Mostly Cloudy

    • 34
    • 49

    Mostly Sunny

    • 36
    • 57

    Partly Sunny

    • 40
    • 60

    Partly Sunny

Today 27 Dec Collin

Mostly sunny. Highs in the lower 80s. South Winds 10 to 15 Mph.

Tonight 27 Dec Collin

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the mid 60s. South Winds 10 to 15 Mph.

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Square Air Airport Temperature Statistics

December Temperature

McKinney - McKinney National Airport (4.3 miles)

  • Lowest 15 December, 2025

    23 °F

  • Average December

    50.3 °F

  • Highest 23 December, 2025

    80.1 °F

Climate (2020–Present)

McKinney - McKinney National Airport (4.3 miles)

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  • Average Low 2020–2025

    56 °F

  • Average 2020–2025

    66.7 °F

  • Average High 2020–2025

    77.5 °F
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