Tatum Lake Weather Forecast

    • 72
    • 96

    Chance Thunderstorms

    • 72
    • 95

    Partly Sunny

    • 69
    • 94

    Partly Sunny

    • 67
    • 92

    Partly Sunny

    • 67
    • 92

    Mostly Cloudy

    • 71
    • 94

    Partly Sunny

    • 71
    • 95

    Partly Sunny

Today 21 Sep Collin

Mostly sunny. A chance of Showers in the Morning, then a slight chance of Showers and Thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 30 percent.

Tonight 21 Sep Collin

Mostly clear with a 30 percent chance of Showers and Thunderstorms this Evening, then partly cloudy after midnight. Lows in the lower 70s. Northeast Winds 5 to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Tatum Lake Temperature Statistics

September Temperature

McKinney - McKinney National Airport (13.7 miles)

  • Lowest 19 September, 2026

    69.1 °F

  • Average September

    87.7 °F

  • Highest 12 September, 2026

    101.6 °F

Climate (2021–2026)

McKinney - McKinney National Airport (13.7 miles)

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

  • Average Low 2021–2026

    56.6 °F

  • Average 2021–2026

    67.6 °F

  • Average High 2021–2026

    78.6 °F
Get WillyWeather+ to remove ads