Collin County Regional Airport at McKinney Weather Forecast

    • 61
    • 83

    Sunny

    • 66
    • 88

    Mostly Sunny

    • 70
    • 89

    Partly Sunny

    • 71
    • 89

    Partly Sunny

    • 74
    • 88

    Mostly Cloudy

    • 74
    • 91

    Chance Thunderstorms

Today 12 May Collin

Sunny. Highs in the lower 80s. South Winds around 5 Mph.

Tonight 12 May Collin

Clear. Lows in the lower 60s. Southeast Winds around 5 Mph.

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Collin County Regional Airport at McKinney Temperature Statistics

May Temperature

McKinney - McKinney National Airport (0 miles)

  • Lowest 2 May, 2026

    47.6 °F

  • Average May

    66.8 °F

  • Highest 5 May, 2026

    90.6 °F

Climate (2021–Present)

McKinney - McKinney National Airport (0 miles)

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  • Average Low 2021–2026

    56.4 °F

  • Average 2021–2026

    67.2 °F

  • Average High 2021–2026

    78.2 °F
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