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

Houston / Ellington (KEFD)

Lat: 29.6°NLon: 95.17°WElev: 33ft.

Partly Cloudy

79°F

26°C

Humidity 74%
Wind Speed W 15 G 22 mph
Barometer 29.90 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 21 May 2:54 pm CDT
Extended Forecast for

Nassau Bay TX

  • This Afternoon

    This Afternoon: Showers likely and possibly a thunderstorm before 4pm, then a chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 81. South wind around 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Showers
    Likely

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72. South wind around 5 mph.

    Low: 72 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 85. South wind 5 to 10 mph.

    High: 85 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: Partly cloudy, with a low around 74. South wind 5 to 10 mph.

    Low: 74 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 84. Southeast wind 5 to 10 mph. Chance of precipitation is 80%.

    High: 84 °F

    Chance
    T-storms then
    T-storms

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm. Low around 72. Chance of precipitation is 90%.

    Low: 72 °F

    Showers
    Likely then
    Showers

  • Sunday

    Sunday: Showers and possibly a thunderstorm. High near 82. Chance of precipitation is 90%.

    High: 82 °F

    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 72. Chance of precipitation is 60%.

    Low: 72 °F

    Chance
    T-storms then
    Showers
    Likely

  • 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

Detailed Forecast

This Afternoon
Showers likely and possibly a thunderstorm before 4pm, then a chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 81. South wind around 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72. South wind around 5 mph.
Friday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 85. South wind 5 to 10 mph.
Friday Night
Partly cloudy, with a low around 74. South wind 5 to 10 mph.
Saturday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 84. Southeast wind 5 to 10 mph. Chance of precipitation is 80%.
Saturday Night
Showers and possibly a thunderstorm. Low around 72. Chance of precipitation is 90%.
Sunday
Showers and possibly a thunderstorm. High near 82. Chance of precipitation is 90%.
Sunday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 72. Chance of precipitation is 60%.
Memorial Day
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.
Monday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.
Tuesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 86.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 76.
Wednesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 85. Chance of precipitation is 70%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Nassau Bay TX
 29.54°N 95.1°W (Elev. 13 ft)
Last Update:
1:56 pm CDT May 21, 2026
Forecast Valid:
3pm CDT May 21, 2026-6pm CDT May 27, 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