Tatum Lake Weather Forecast

    • 55
    • 74

    Decreasing Clouds

    • 59
    • 74

    Partly Sunny

    • 45
    • 69

    Slight Chance Rain Showers

    • 42
    • 61

    Mostly Sunny

    • 41
    • 63

    Mostly Sunny

    • 46
    • 65

    Mostly Sunny

Today 26 Oct Collin

Patchy fog in the morning. Mostly sunny. Highs in the lower 70s. Northwest Winds around 5 Mph.

Tonight 26 Oct Collin

Mostly cloudy. Lows in the upper 50s. Light and variable Winds, becoming southwest around 5 Mph.

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Tatum Lake Temperature Statistics

October Temperature

McKinney - McKinney National Airport (13.7 miles)

  • Lowest 22 October, 2025

    45 °F

  • Average October

    73 °F

  • Highest 6 October, 2025

    91 °F

Climate (2020–Present)

McKinney - McKinney National Airport (13.7 miles)

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  • Average Low 2020–2025

    55.8 °F

  • Average 2020–2025

    66.5 °F

  • Average High 2020–2025

    77.4 °F
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