Katy Lake Weather Forecast

    • 74
    • 89

    Chance Thunderstorms

    • 75
    • 93

    Slight Chance Thunderstorms

    • 75
    • 94

    Mostly Sunny

    • 76
    • 96

    Sunny

    • 76
    • 97

    Hot

    • 78
    • 99

    Hot

Today 16 Jul Ellis

Mostly cloudy in the Morning, then becoming partly sunny. A chance of Showers. A chance of Thunderstorms in the afternoon. Humid with Highs in the upper 80s. South Winds 5 to 10 Mph. Chance of rain 40 percent.

Tonight 16 Jul Ellis

Mostly cloudy in the Evening, then becoming partly cloudy. Humid with Lows in the mid 70s. South Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Katy Lake Temperature Statistics

July Temperature

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

  • Lowest 6 July, 2026

    71.2 °F

  • Average July

    84.6 °F

  • Highest 9 July, 2026

    99.9 °F

Climate (2021–2026)

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

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  • Average Low 2021–2026

    56.9 °F

  • Average 2021–2026

    67.2 °F

  • Average High 2021–2026

    78.3 °F
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