Weather forecast for: Katy TX
Last Update: 7:20 pm CDT Sep 8, 2026
Tonight: A 20 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 78. Southeast wind around 5 mph becoming calm after midnight.
Wednesday: A 40 percent chance of showers and thunderstorms, mainly between 1pm and 5pm. Partly sunny, with a high near 96. Heat index values as high as 108. Light northeast wind becoming east 5 to 10 mph in the afternoon.
Wednesday Night: A 30 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 77. Southeast wind around 5 mph becoming calm after midnight.
Thursday: A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 94. Heat index values as high as 105. Calm wind becoming southeast around 5 mph in the afternoon.
Thursday Night: Partly cloudy, with a low around 77. Southeast wind 5 to 10 mph.
Friday: A 30 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 95.
Friday Night: Partly cloudy, with a low around 77.
Saturday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 96.
Saturday Night: Partly cloudy, with a low around 78.
Sunday: A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 95.
Sunday Night: Partly cloudy, with a low around 78.
Monday: A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 95.
Monday Night: Partly cloudy, with a low around 77.
Tuesday: A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 95.
WeatherWorld.com
City of Katy, TX
