National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Houston, Sugar Land Municipal / Hull Field Airport (KSGR)

Lat: 29.62°NLon: 95.66°WElev: 82ft.

Mostly Cloudy

71°F

22°C

Humidity 96%
Wind Speed Calm
Barometer 29.90 in (1012.5 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 21 May 10:53 pm CDT
Extended Forecast for

Katy TX

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 1am. Mostly cloudy, with a low around 70. East wind around 5 mph becoming south after midnight. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 70 °F

    T-storms
    Likely

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 86. Calm wind becoming southwest around 5 mph in the morning.

    High: 86 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: Partly cloudy, with a low around 73. South wind around 5 mph.

    Low: 73 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 85. Southeast wind 5 to 10 mph becoming south in the afternoon. Chance of precipitation is 90%.

    High: 85 °F

    Chance
    T-storms then
    T-storms

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm. Low around 71. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%.

    Low: 71 °F

    Showers

  • Sunday

    Sunday: Showers and possibly a thunderstorm before 1pm, then showers and thunderstorms likely after 1pm. High near 82. Chance of precipitation is 80%.

    High: 82 °F

    T-storms

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70.

    Low: 70 °F

    Chance
    T-storms

  • Memorial Day

    Memorial Day: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.

    High: 85 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.

    Low: 71 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Showers and thunderstorms likely, mainly before 1am. Mostly cloudy, with a low around 70. East wind around 5 mph becoming south after midnight. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 86. Calm wind becoming southwest around 5 mph in the morning.
Friday Night
Partly cloudy, with a low around 73. South wind around 5 mph.
Saturday
A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 85. Southeast wind 5 to 10 mph becoming south in the afternoon. Chance of precipitation is 90%.
Saturday Night
Showers and possibly a thunderstorm. Low around 71. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%.
Sunday
Showers and possibly a thunderstorm before 1pm, then showers and thunderstorms likely after 1pm. High near 82. Chance of precipitation is 80%.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70.
Memorial Day
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.
Monday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.
Tuesday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 74.
Wednesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 84. Chance of precipitation is 70%.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73.
Thursday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 86. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Katy TX
 29.79°N 95.81°W (Elev. 138 ft)
Last Update:
8:11 pm CDT May 21, 2026
Forecast Valid:
11pm CDT May 21, 2026-6pm CDT May 28, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation