Tatum Lake Weather Forecast

    • 71
    • 84

    Chance Thunderstorms

    • 70
    • 88

    Chance Thunderstorms

    • 71
    • 86

    Chance Thunderstorms

    • 74
    • 90

    Partly Sunny

    • 75
    • 92

    Mostly Sunny

    • 76
    • 94

    Mostly Sunny

    • 76
    • 95

    Sunny

Today 13 Jul Collin

Mostly cloudy with Showers likely with a chance of Thunderstorms. Not as warm with Highs in the mid 80s. Southeast Winds around 5 Mph. Chance of rain 70 percent.

Tonight 13 Jul Collin

Mostly cloudy. A 20 percent chance of Showers and Thunderstorms in the evening. Humid with Lows in the lower 70s. East Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Tatum Lake Temperature Statistics

July Temperature

McKinney - McKinney National Airport (13.7 miles)

  • Lowest 5 July, 2026

    71.7 °F

  • Average July

    86 °F

  • Highest 9 July, 2026

    99.6 °F

Climate (2021–2026)

McKinney - McKinney National Airport (13.7 miles)

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  • Average Low 2021–2026

    56.5 °F

  • Average 2021–2026

    67.4 °F

  • Average High 2021–2026

    78.4 °F
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