Collin County Regional Airport at McKinney Weather Forecast

    • 43
    • 56

    Increasing Clouds

    • 41
    • 55

    Rain Showers Likely

    • 29
    • 54

    Partly Sunny

    • 34
    • 48

    Chance Rain Showers

    • 41
    • 56

    Slight Chance Rain Showers

    • 48
    • 66

    Partly Sunny

Today 3 Dec Collin

Sunny. Highs in the upper 50s. East Winds around 5 Mph.

Tonight 3 Dec Collin

Mostly clear in the Evening, then mostly cloudy with a 20 percent chance of Showers after midnight. Not as cool with Lows in the mid 40s. Southeast Winds around 5 Mph.

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Collin County Regional Airport at McKinney Temperature Statistics

December Temperature

McKinney - McKinney National Airport (0 miles)

  • Lowest 1 December, 2024

    32 °F

  • Average December

    45.2 °F

  • Highest 1 December, 2024

    62.1 °F

Climate (2019–Present)

McKinney - McKinney National Airport (0 miles)

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  • Average Low 2019–2024

    55.8 °F

  • Average 2019–2024

    66.3 °F

  • Average High 2019–2024

    77.1 °F
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