Katy, TX Weather Forecast
Local 7-day forecast
Slight Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Katy, TX in one place.
Patchy fog before 10am, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 85. Northeast wind around 5 mph. Chance of precipitation is 20%. New rainfall amounts between a tenth and quarter of an inch possible.
Local Weather Overview
This forecast page for Katy, TX is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: May 24, 2026 10:35 AM CDT.
The active forecast window currently covers May 24 to May 30, 2026 for Katy, TX.
Page Snapshot
- Page focus
- city weather
- Forecast window
- May 24 to May 30, 2026
- Latest sync
- May 24, 2026 10:35 AM CDT
- Forecast office
- HGX
- Source
- NOAA / NWS
Daily Outlook
This Week in Katy
Saturday looks like the warmest upcoming period in Katy at 90 degrees F.
Tonight is the coolest period ahead with temperatures near 70 degrees F.
The strongest winds are forecast for Tuesday at about 0 to 10 mph SE.
Precipitation is mentioned in 14 upcoming forecast periods.
Forecast Details
- Last updated
- May 24, 2026 10:35 AM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- HGX
- Radar station
- KHGX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A slight chance of showers and thunderstorms before 7pm, then patchy fog. Partly cloudy, with a low around 70. East wind around 5 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Patchy fog before 10am, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 88. East wind around 5 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 70. Southeast wind 0 to 5 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89. Southeast wind 0 to 10 mph. Chance of precipitation is 20%.
Showers and thunderstorms likely. Mostly cloudy, with a low around 74. Chance of precipitation is 70%.
Showers and thunderstorms. Mostly cloudy, with a high near 83. Chance of precipitation is 90%.
Showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Chance of precipitation is 90%.
A chance of showers and thunderstorms. Partly sunny, with a high near 87. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 74. Chance of precipitation is 50%.
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 75. Chance of precipitation is 20%.
A chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 90. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 74.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
May 24
|
Slight Chance Showers And Thunderstorms
|
85°F |
5 mph
NE
|
|
Tonight
May 24
|
Slight Chance Showers And Thunderstorms then Patchy Fog
|
70°F |
5 mph
E
|
|
Memorial Day
May 25
|
Patchy Fog then Slight Chance Showers And Thunderstorms
|
88°F |
5 mph
E
|
|
Monday Night
May 25
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
70°F |
0 to 5 mph
SE
|
|
Tuesday
May 26
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
89°F |
0 to 10 mph
SE
|
|
Tuesday Night
May 26
|
Showers And Thunderstorms Likely
|
74°F |
5 to 10 mph
SE
|
|
Wednesday
May 27
|
Showers And Thunderstorms
|
83°F |
5 to 10 mph
SE
|
|
Wednesday Night
May 27
|
Showers And Thunderstorms
|
73°F |
5 to 10 mph
SE
|
|
Thursday
May 28
|
Chance Showers And Thunderstorms
|
87°F |
0 to 5 mph
SE
|
|
Thursday Night
May 28
|
Chance Showers And Thunderstorms
|
74°F |
0 to 5 mph
S
|
|
Friday
May 29
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
89°F |
0 to 5 mph
SW
|
|
Friday Night
May 29
|
Slight Chance Showers And Thunderstorms
|
75°F |
0 to 5 mph
S
|
|
Saturday
May 30
|
Partly Sunny then Chance Showers And Thunderstorms
|
90°F |
0 to 5 mph
SW
|
|
Saturday Night
May 30
|
Chance Showers And Thunderstorms
|
74°F |
5 mph
E
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Katy.
