McKinney Weather Forecast

    • 68
    • 90

    Mostly Sunny

    • 68
    • 89

    Slight Chance Rain Showers

    • 67
    • 90

    Mostly Sunny

    • 72
    • 94

    Mostly Sunny

    • 73
    • 99

    Hot

    • 73
    • 97

    Hot

Today 10 Sep Collin

Sunny. Highs around 90. East Winds around 5 Mph.

Tonight 10 Sep Collin

Mostly clear. Not as cool. More humid with Lows in the upper 60s. East Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

McKinney Temperature Statistics

September Temperature

McKinney - McKinney National Airport (3.1 miles)

  • Lowest 7 September, 2024

    66 °F

  • Average September

    78.3 °F

  • Highest 1 September, 2024

    94.6 °F

Climate (2019–Present)

McKinney - McKinney National Airport (3.1 miles)

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  • Average Low 2019–2024

    55.6 °F

  • Average 2019–2024

    66 °F

  • Average High 2019–2024

    76.8 °F
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