McKinney Weather Forecast

    • 76
    • 96

    Mostly Sunny

    • 75
    • 99

    Hot

    • 77
    • 99

    Hot

    • 78
    • 96

    Partly Sunny

    • 78
    • 98

    Hot

    • 79
    • 99

    Hot

    • 78
    • 99

    Hot

Today 16 Jul Collin

Sunny. Highs in the mid 90s. South Winds around 10 Mph. Heat index Values up to 106.

Tonight 16 Jul Collin

Mostly clear. Lows in the mid 70s. South Winds 5 to 10 Mph.

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McKinney Temperature Statistics

July Temperature

McKinney - McKinney National Airport (3.1 miles)

  • Lowest 12 July, 2025

    69.7 °F

  • Average July

    82.1 °F

  • Highest 10 July, 2025

    95.6 °F

Climate (2020–Present)

McKinney - McKinney National Airport (3.1 miles)

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  • Average Low 2020–2025

    55.7 °F

  • Average 2020–2025

    66.3 °F

  • Average High 2020–2025

    77.2 °F
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