McKinney Weather Forecast

    • 45
    • 67

    Sunny

    • 48
    • 71

    Mostly Sunny

    • 54
    • 75

    Mostly Sunny

    • 57
    • 79

    Mostly Sunny

    • 60
    • 83

    Mostly Sunny

    • 63
    • 86

    Mostly Sunny

Today 17 Oct Collin

Sunny. Highs in the mid 60s. North Winds 5 to 10 Mph.

Tonight 17 Oct Collin

Clear. Lows in the mid 40s. Northeast Winds around 5 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

McKinney Temperature Statistics

October Temperature

McKinney - McKinney National Airport (3.1 miles)

  • Lowest 7 October, 2026

    56.6 °F

  • Average October

    75.5 °F

  • Highest 13 October, 2026

    93 °F

Climate (2021–2026)

McKinney - McKinney National Airport (3.1 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    56.7 °F

  • Average 2021–2026

    67.6 °F

  • Average High 2021–2026

    78.6 °F
Get WillyWeather+ to remove ads