McKinney Weather Forecast

    • 69
    • 87

    Thunderstorms

    • 59
    • 81

    Mostly Cloudy

    • 59
    • 79

    Mostly Sunny

    • 66
    • 82

    Slight Chance Thunderstorms

    • 67
    • 82

    Slight Chance Thunderstorms

    • 68
    • 86

    Slight Chance Thunderstorms

Today 21 Jul Lincoln

Partly sunny. Chance of Thunderstorms early in the afternoon. Thunderstorms likely late in the afternoon. Highs in the upper 80s. Southwest Winds 5 to 15 Mph. Chance of Thunderstorms 70 percent.

Tonight 21 Jul Lincoln

Mostly cloudy with Showers and chance of Thunderstorms in the Evening, then partly cloudy with slight chance of Thunderstorms after midnight. Locally heavy rainfall possible in the evening. Lows in the upper 60s. Southwest Winds up to 10 Mph. Chance of precipitation 90 percent.

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McKinney Temperature Statistics

July Temperature

Stuart Powell Field Airport (8.1 miles)

  • Lowest 14 July, 2026

    66.2 °F

  • Average July

    77.5 °F

  • Highest 1 July, 2026

    95 °F

Climate (2021–2026)

Stuart Powell Field Airport (8.1 miles)

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  • Average Low 2021–2026

    45.9 °F

  • Average 2021–2026

    56.1 °F

  • Average High 2021–2026

    67 °F
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