Katy, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Katy, a city in Fort Bend County, Texas.
This Afternoon
80°F
Showers And Thunderstorms
Showers and thunderstorms before 4pm. Partly sunny. High near 80, with temperatures falling to around 74 in the afternoon. Northwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Katy
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 80°F | Showers And Thunderstorms | 5 to 10 mph NW | 79% |
| Tonight | 56°F | Partly Cloudy | 5 mph N | 3% |
| Wednesday | 76°F | Sunny | 0 to 5 mph N | 0% |
| Wednesday Night | 54°F | Mostly Clear | 0 mph | 3% |
| Thursday | 79°F | Mostly Sunny then Chance Rain Showers | 0 mph | 26% |
| Thursday Night | 60°F | Chance Rain Showers | 0 to 10 mph E | 25% |
| Friday | 77°F | Sunny | 5 to 10 mph N | 5% |
| Friday Night | 55°F | Mostly Clear | 5 mph N | 1% |
| Saturday | 73°F | Partly Sunny | 5 mph N | 13% |
| Saturday Night | 52°F | Partly Cloudy | 5 mph N | 18% |
| Sunday | 71°F | Mostly Sunny | 5 to 10 mph N | 7% |
| Sunday Night | 49°F | Mostly Clear | 0 to 5 mph N | 5% |
| Monday | 72°F | Sunny | 0 to 5 mph N | 15% |
| Monday Night | 49°F | Mostly Clear | 0 mph | 0% |
Forecast source: National Weather Service (api.weather.gov) for Katy (29.791, -95.841). Updated through the day.
Growing snapshot for Katy
Last spring frost
Feb 2
First fall frost
Dec 11
Growing season
318 days
Hardiness zone
9a
More local growing data for Katy: nearby ZIP 77494 weather · frost dates · planting calendar · Texas frost dates
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Climate data from the nearest NOAA station, Houston Sugarland Mem, Tx (12.8 mi from Katy). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.