Tatum Lake Weather Forecast

    • 77
    • 99

    Slight Chance Thunderstorms

    • 77
    • 99

    Slight Chance Thunderstorms

    • 76
    • 99

    Hot

    • 75
    • 97

    Partly Sunny

    • 76
    • 97

    Mostly Sunny

    • 75
    • 98

    Hot

    • 74
    • 96

    Mostly Sunny

Today 7 Sep Collin

Sunny with a 20 percent chance of Showers and Thunderstorms. Hot with Highs around 101. Southeast Winds 5 to 10 Mph. Heat index Values up to 109.

Tonight 7 Sep Collin

Mostly clear. Lows in the upper 70s. South 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 1 September, 2026

    75.7 °F

  • Average September

    87 °F

  • Highest 1 September, 2026

    100.7 °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

    67.5 °F

  • Average High 2021–2026

    78.5 °F
Get WillyWeather+ to remove ads