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City of Katy, TXKaty, TX 7-Day Weather Forecast
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Katy Weather Forecast
Katy, TX Weather Forecast Date: 523 PM CDT Tue Sep 08 2026
Weather forecast for Katy, TX
Tonight Lo: 79°F Lo: 26°C |
Tonight... Mostly cloudy with a slight chance of showers and thunderstorms this evening, then partly cloudy after midnight. Lows in the upper 70s. Southeast winds 5 to 10 mph. Chance of rain 20%. |
Wed Hi: 95°FHi: 35°C Lo: 79°F Lo: 26°C |
Wednesday... Partly sunny with a slight chance of showers and thunderstorms in the morning, then mostly cloudy with a chance of showers and thunderstorms in the afternoon. Humid with highs in the mid 90s. East winds 5 to 10 mph. Chance of rain 50%. Heat index values up to 107. |
| Thu Hi: 91°FHi: 33°C Lo: 79°F Lo: 26°C |
Thursday... Partly sunny. A chance of showers and thunderstorms in the afternoon. Humid with highs in the lower 90s. East winds around 5 mph, becoming southeast in the afternoon. Chance of rain 50%. |
| Fri Hi: 91°FHi: 33°C Lo: 79°F Lo: 26°C |
Friday... Partly sunny with a chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 50%. Heat index values up to 105. |
| Sat Hi: 95°FHi: 35°C Lo: 79°F Lo: 26°C |
Saturday... Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the mid 90s. Chance of rain 50%. Heat index values up to 105. |
| Sun Hi: 91°FHi: 33°C Lo: 79°F Lo: 26°C |
Sunday... Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 50%. Heat index values up to 105. |
| Mon Hi: 91°FHi: 33°C Lo: 79°F Lo: 26°C |
Monday... Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 30%. Heat index values up to 105. |
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