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

Hazardous Weather Conditions

Current conditions at

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

Lat: 29.62°NLon: 95.66°WElev: 82ft.

Mostly Cloudy

89°F

32°C

Humidity 72%
Wind Speed Calm
Barometer 30.04 in (1017.3 mb)
Dewpoint 79°F (26°C)
Visibility 10.00 mi
Heat Index104°F (40°C)
Last update 25 Aug 8:53 am CDT
Extended Forecast for

Katy TX

Heat Advisory August 25, 09:51am until August 25, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 25, 09:51am until August 25, 07:00pm

    NOW until 7:00pm Tue

    Heat Advisory

  • Today

    High: 101 °F

    Hot

  • Tonight

    Tonight: Patchy fog after 5am. Otherwise, mostly clear, with a low around 79. South wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 79 °F

    Partly Cloudy
    then Patchy
    Fog

  • Wednesday

    Wednesday: Patchy fog before 9am. Otherwise, sunny and hot, with a high near 102. Heat index values as high as 108. Southwest wind around 5 mph becoming south in the afternoon.

    High: 102 °F

    Patchy Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 79. South wind 5 to 10 mph.

    Low: 79 °F

    Increasing
    Clouds

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny and hot, with a high near 101. Southwest wind around 5 mph.

    High: 101 °F

    Partly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 78.

    Low: 78 °F

    Chance
    T-storms

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 97.

    High: 97 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 76.

    Low: 76 °F

    Slight Chance
    T-storms

Detailed Forecast

Today
Sunny and hot, with a high near 101. Heat index values as high as 110. Calm wind becoming southwest around 5 mph in the afternoon.
Tonight
Patchy fog after 5am. Otherwise, mostly clear, with a low around 79. South wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday
Patchy fog before 9am. Otherwise, sunny and hot, with a high near 102. Heat index values as high as 108. Southwest wind around 5 mph becoming south in the afternoon.
Wednesday Night
Increasing clouds, with a low around 79. South wind 5 to 10 mph.
Thursday
A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny and hot, with a high near 101. Southwest wind around 5 mph.
Thursday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 78.
Friday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 97.
Friday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 76.
Saturday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 96.
Saturday Night
Mostly clear, with a low around 76.
Sunday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 96.
Sunday Night
Mostly clear, with a low around 76.
Monday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 96.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Katy TX
 29.79°N 95.84°W (Elev. 138 ft)
Last Update:
9:41 am CDT Aug 25, 2026
Forecast Valid:
9am CDT Aug 25, 2026-6pm CDT Aug 31, 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