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.

Fair

104°F

40°C

Humidity 37%
Wind Speed Calm
Barometer 29.99 in (1015.4 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index116°F (47°C)
Last update 25 Aug 2:53 pm CDT
Extended Forecast for

Katy TX

Heat Advisory August 25, 03:41pm until August 26, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 25, 03:41pm until August 26, 07:00pm

    NOW until 7:00pm Wed

    Heat Advisory

  • This Afternoon

    High: 98 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 77. South wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 77 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 99. Heat index values as high as 104. South wind around 5 mph.

    High: 99 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 78. South wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 78 °F

    Mostly Clear

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 98. Southwest wind around 5 mph.

    High: 98 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 78. Chance of precipitation is 20%.

    Low: 78 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 99.

    High: 99 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: Mostly clear, with a low around 77.

    Low: 77 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Sunny and hot, with a high near 98. Heat index values as high as 105. South wind around 5 mph.
Tonight
Mostly clear, with a low around 77. South wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday
Sunny and hot, with a high near 99. Heat index values as high as 104. South wind around 5 mph.
Wednesday Night
Mostly clear, with a low around 78. South wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 98. Southwest wind around 5 mph.
Thursday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 78. Chance of precipitation is 20%.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 99.
Friday Night
Mostly clear, with a low around 77.
Saturday
Sunny and hot, with a high near 98.
Saturday Night
Clear, with a low around 76.
Sunday
Sunny and hot, with a high near 98.
Sunday Night
Clear, with a low around 76.
Monday
A 30 percent chance of showers and thunderstorms. Sunny, with a high near 97.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Katy TX
 29.81°N 95.81°W (Elev. 148 ft)
Last Update:
2:46 pm CDT Aug 25, 2026
Forecast Valid:
3pm 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