Katy Lake Weather Forecast

    • 64
    • 82

    Rain Showers

    • 68
    • 79

    Rain Showers

    • 66
    • 78

    Rain Showers

    • 67
    • 81

    Chance Thunderstorms

    • 66
    • 81

    Chance Thunderstorms

    • 67
    • 81

    Rain Showers Likely

Today 19 May Ellis

A slight chance of Showers and Thunderstorms this Morning, then Showers with Thunderstorms likely this afternoon. Highs in the lower 80s. Temperatures falling into the mid 70s this afternoon. South Winds 10 to 15 Mph, Diminishing to 5 to 10 Mph this afternoon. Chance of rain near 100 percent.

Tonight 19 May Ellis

Mostly cloudy. A chance of Showers and Thunderstorms in the Evening, then a slight chance of Showers and Thunderstorms after midnight. Cooler with Lows in the mid 60s. East Winds 5 to 10 Mph. Chance of rain 50 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Katy Lake Temperature Statistics

May Temperature

Midlothian/Waxahachie, Mid-Way Regional Airport (4.3 miles)

  • Lowest 2 May, 2026

    47.7 °F

  • Average May

    69 °F

  • Highest 14 May, 2026

    90 °F

Climate (2021–Present)

Midlothian/Waxahachie, Mid-Way Regional Airport (4.3 miles)

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

  • Average Low 2021–2026

    56.8 °F

  • Average 2021–2026

    67.1 °F

  • Average High 2021–2026

    78.2 °F
Get WillyWeather+ to remove ads