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.

Mostly Cloudy

88°F

31°C

Humidity 62%
Wind Speed S 14 G 23 mph
Barometer 29.97 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 19 May 3:54 pm CDT
Extended Forecast for

Nassau Bay TX

  • This Afternoon

    This Afternoon: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 88. Southeast wind around 15 mph, with gusts as high as 20 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 88 °F

    Chance
    Showers

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly between 10pm and 1am, then showers likely and possibly a thunderstorm after 1am. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 72. Southeast wind 5 to 15 mph becoming east after midnight. Chance of precipitation is 70%. New rainfall amounts between 1 and 2 inches possible.

    Low: 72 °F

    Heavy Rain

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 87. East wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 87 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 75. Southeast wind around 5 mph. Chance of precipitation is 20%.

    Low: 75 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: Showers and possibly a thunderstorm. High near 85. East wind 5 to 10 mph becoming south in the afternoon. Chance of precipitation is 80%.

    High: 85 °F

    Showers

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 76. Chance of precipitation is 60%.

    Low: 76 °F

    Chance
    T-storms then
    Showers
    Likely

  • Friday

    Friday: Showers and possibly a thunderstorm. High near 86. Chance of precipitation is 80%.

    High: 86 °F

    Showers then
    T-storms

  • Friday Night

    Friday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 76.

    Low: 76 °F

    Chance
    T-storms

  • Saturday

    Saturday: Showers and possibly a thunderstorm. High near 84. Chance of precipitation is 80%.

    High: 84 °F

    Showers

Detailed Forecast

This Afternoon
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 88. Southeast wind around 15 mph, with gusts as high as 20 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms likely, mainly between 10pm and 1am, then showers likely and possibly a thunderstorm after 1am. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 72. Southeast wind 5 to 15 mph becoming east after midnight. Chance of precipitation is 70%. New rainfall amounts between 1 and 2 inches possible.
Wednesday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 87. East wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 75. Southeast wind around 5 mph. Chance of precipitation is 20%.
Thursday
Showers and possibly a thunderstorm. High near 85. East wind 5 to 10 mph becoming south in the afternoon. Chance of precipitation is 80%.
Thursday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 76. Chance of precipitation is 60%.
Friday
Showers and possibly a thunderstorm. High near 86. Chance of precipitation is 80%.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 76.
Saturday
Showers and possibly a thunderstorm. High near 84. Chance of precipitation is 80%.
Saturday Night
Showers and possibly a thunderstorm. Low around 75. Chance of precipitation is 80%.
Sunday
Showers and possibly a thunderstorm. High near 83. Chance of precipitation is 90%.
Sunday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 74. Chance of precipitation is 70%.
Memorial Day
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 84. Chance of precipitation is 70%.
Monday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 75.
Tuesday
Showers and thunderstorms likely. Partly sunny, with a high near 86.
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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:
1:21 pm CDT May 19, 2026
Forecast Valid:
5pm CDT May 19, 2026-6pm CDT May 26, 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