McKinney Weather Forecast

    • 75
    • 99

    Hot

    • 76
    • 99

    Hot

    • 76
    • 99

    Hot

    • 76
    • 98

    Hot

    • 76
    • 98

    Hot

    • 75
    • 98

    Hot

Today 19 Sep Travis

Mostly sunny. Highs in the upper 90s. Southeast Winds 5 to 10 Mph.

Tonight 19 Sep Travis

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

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  • Temperature Forecast NOAA

  • Temperature Real-Time

McKinney Temperature Statistics

September Temperature

Austin-Bergstrom International Airport (3.1 miles)

  • Lowest 16 September, 2026

    73 °F

  • Average September

    86.7 °F

  • Highest 11 September, 2026

    102 °F

Climate (2021–2026)

Austin-Bergstrom International Airport (3.1 miles)

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  • Average Low 2021–2026

    58.8 °F

  • Average 2021–2026

    70.2 °F

  • Average High 2021–2026

    82 °F
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