Tatum Lake Weather Forecast

    • 75
    • 96

    Hot

    • 76
    • 97

    Hot

    • 77
    • 97

    Hot

    • 74
    • 99

    Hot

    • 76
    • 98

    Hot

    • 76
    • 98

    Hot

Today 10 Aug Collin

Sunny, hot with Highs in the upper 90s. South Winds around 10 Mph. Heat index Values up to 107.

Tonight 10 Aug Collin

Clear with Lows in the upper 70s. South Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Tatum Lake Temperature Statistics

August Temperature

McKinney - McKinney National Airport (13.7 miles)

  • Lowest 2 August, 2026

    67.6 °F

  • Average August

    85.9 °F

  • Highest 4 August, 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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