7-Day Forecast 29.79°N 95.81°W (Text-Only)
NWS Forecast for: Katy TX
Issued by: National Weather Service Houston, TX
Last Update: 1:20 pm CDT Jul 13, 2025


This Afternoon: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 93. Heat index values as high as 103. South wind around 10 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight: Mostly cloudy, with a low around 76. South wind around 5 mph.

Monday: A 40 percent chance of showers and thunderstorms, mainly after 11am. Mostly sunny, with a high near 92. Heat index values as high as 103. Calm wind becoming south around 5 mph in the morning.

Monday Night: Partly cloudy, with a low around 76. South wind around 5 mph becoming calm after midnight.

Tuesday: A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93. Light southeast wind becoming south 5 to 10 mph in the morning.

Tuesday Night: Partly cloudy, with a low around 75.

Wednesday: Sunny, with a high near 95.

Wednesday Night: Mostly clear, with a low around 74.

Thursday: Mostly sunny, with a high near 95.

Thursday Night: Partly cloudy, with a low around 75.

Friday: A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.

Friday Night: Mostly cloudy, with a low around 76.

Saturday: A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.



Katy TX
 29.79°N 95.81°W (Elev. 138 ft)

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