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

Hazardous Weather Conditions

Current conditions at

Houston / Ellington (KEFD)

Lat: 29.6°NLon: 95.17°WElev: 33ft.

Fair

97°F

36°C

Humidity 39%
Wind Speed W 8 mph
Barometer 30.03 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index102°F (39°C)
Last update 22 Aug 12:54 pm CDT
Extended Forecast for

Nassau Bay TX

Heat Advisory August 22, 02:13pm until August 23, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 22, 02:13pm until August 23, 07:00pm

    NOW until 7:00pm Sun

    Heat Advisory

  • This Afternoon

    High: 98 °F

    Hot

  • Tonight

    Tonight: Partly cloudy, with a low around 79. South wind 5 to 10 mph becoming west after midnight.

    Low: 79 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny and hot, with a high near 99. Heat index values as high as 108. Light and variable wind becoming southeast 5 to 10 mph in the morning.

    High: 99 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 78. Southwest wind 5 to 10 mph.

    Low: 78 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny and hot, with a high near 98. Southwest wind 5 to 10 mph becoming south in the afternoon.

    High: 98 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 79.

    Low: 79 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 97.

    High: 97 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 79.

    Low: 79 °F

    Clear

Detailed Forecast

This Afternoon
Mostly sunny and hot, with a high near 98. Heat index values as high as 109. South wind 5 to 10 mph.
Tonight
Partly cloudy, with a low around 79. South wind 5 to 10 mph becoming west after midnight.
Sunday
Sunny and hot, with a high near 99. Heat index values as high as 108. Light and variable wind becoming southeast 5 to 10 mph in the morning.
Sunday Night
Mostly clear, with a low around 78. Southwest wind 5 to 10 mph.
Monday
Mostly sunny and hot, with a high near 98. Southwest wind 5 to 10 mph becoming south in the afternoon.
Monday Night
Mostly clear, with a low around 79.
Tuesday
Mostly sunny, with a high near 97.
Tuesday Night
Clear, with a low around 79.
Wednesday
Sunny and hot, with a high near 99.
Wednesday Night
Mostly clear, with a low around 79.
Thursday
Sunny and hot, with a high near 98.
Thursday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 79.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 96.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Nassau Bay TX
 29.54°N 95.08°W (Elev. 3 ft)
Last Update:
1:21 pm CDT Aug 22, 2026
Forecast Valid:
2pm CDT Aug 22, 2026-6pm CDT Aug 28, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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