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.

Fair

84°F

29°C

Humidity 82%
Wind Speed Calm
Barometer 30.05 in (1017.5 mb)
Dewpoint 78°F (26°C)
Visibility 10.00 mi
Heat Index95°F (35°C)
Last update 9 Aug 8:53 am CDT
Extended Forecast for

Katy TX

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 95. Heat index values as high as 103. Light south wind becoming southeast 5 to 10 mph in the afternoon.

    High: 95 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms before 7pm. Patchy fog after 5am. Otherwise, mostly clear, with a low around 77. Southeast wind 5 to 10 mph becoming light south after midnight.

    Low: 77 °F

    Slight Chance
    T-storms then
    Patchy Fog

  • Monday

    Monday: A slight chance of showers, then a chance of showers and thunderstorms after 11am. Patchy fog before 9am. Otherwise, increasing clouds, with a high near 94. Heat index values as high as 103. Light southeast wind becoming south 5 to 10 mph in the morning. Chance of precipitation is 40%.

    High: 94 °F

    Chance
    T-storms and
    Patchy Fog

  • Monday Night

    Monday Night: Mostly clear, with a low around 76. South wind 5 to 10 mph.

    Low: 76 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 97. South wind 5 to 10 mph.

    High: 97 °F

    Sunny

  • Tuesday Night

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

    Low: 77 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 98.

    High: 98 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 78.

    Low: 78 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 99.

    High: 99 °F

    Hot

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 95. Heat index values as high as 103. Light south wind becoming southeast 5 to 10 mph in the afternoon.
Tonight
A 10 percent chance of showers and thunderstorms before 7pm. Patchy fog after 5am. Otherwise, mostly clear, with a low around 77. Southeast wind 5 to 10 mph becoming light south after midnight.
Monday
A slight chance of showers, then a chance of showers and thunderstorms after 11am. Patchy fog before 9am. Otherwise, increasing clouds, with a high near 94. Heat index values as high as 103. Light southeast wind becoming south 5 to 10 mph in the morning. Chance of precipitation is 40%.
Monday Night
Mostly clear, with a low around 76. South wind 5 to 10 mph.
Tuesday
Sunny, with a high near 97. South wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 77.
Wednesday
Sunny and hot, with a high near 98.
Wednesday Night
Mostly clear, with a low around 78.
Thursday
Sunny and hot, with a high near 99.
Thursday Night
Mostly clear, with a low around 78.
Friday
Sunny and hot, with a high near 99.
Friday Night
Mostly clear, with a low around 78.
Saturday
Sunny and hot, with a high near 99.
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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:
7:20 am CDT Aug 9, 2026
Forecast Valid:
9am CDT Aug 9, 2026-6pm CDT Aug 15, 2026
 
Forecast Discussion
 
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Additional Resources

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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