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

Dangerous Heat in the West; Coastal Flooding & High Rip Current Risk through the Weekend on the East Coast; Flash Flooding Concerns in the Southeast and Southwest

A dangerous, record heat wave continues across portions of the West through Tuesday. High rip current risk and dangerous surf continue through the weekend. There are flash flooding concerns through the weekend for portions of the Southeast and Southwest. Read More >

Current conditions at

Corpus Christi, Corpus Christi Naval Air Station/Truax Field (KNGP)

Lat: 27.69°NLon: 97.29°WElev: 20ft.

A Few Clouds

87°F

31°C

Humidity 70%
Wind Speed N 10 mph
Barometer 29.98 in (1015.1 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index98°F (37°C)
Last update 23 Aug 10:56 am CDT
Extended Forecast for

Portland TX

  • Today

    Today: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 91. Heat index values as high as 103. North northeast wind 8 to 14 mph becoming east in the afternoon. Winds could gust as high as 20 mph.

    High: 91 °F

    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before 11pm, then a slight chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 78. East wind 5 to 9 mph becoming calm after midnight. Chance of precipitation is 40%.

    Low: 78 °F

    Chance
    T-storms

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91. Heat index values as high as 105. North wind 5 to 11 mph becoming east southeast in the afternoon.

    High: 91 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 80. East southeast wind 5 to 10 mph becoming light south southeast after midnight. Chance of precipitation is 30%.

    Low: 80 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91. East wind 5 to 13 mph.

    High: 91 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 81. South southeast wind 6 to 11 mph. Chance of precipitation is 30%.

    Low: 81 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 92. Southeast wind 6 to 13 mph.

    High: 92 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 81. Southeast wind 6 to 11 mph.

    Low: 81 °F

    Mostly Clear
    then Chance
    Showers

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91. East southeast wind 6 to 13 mph, with gusts as high as 18 mph.

    High: 91 °F

    Chance
    T-storms

Detailed Forecast

Today
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 91. Heat index values as high as 103. North northeast wind 8 to 14 mph becoming east in the afternoon. Winds could gust as high as 20 mph.
Tonight
A chance of showers and thunderstorms before 11pm, then a slight chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 78. East wind 5 to 9 mph becoming calm after midnight. Chance of precipitation is 40%.
Sunday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91. Heat index values as high as 105. North wind 5 to 11 mph becoming east southeast in the afternoon.
Sunday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 80. East southeast wind 5 to 10 mph becoming light south southeast after midnight. Chance of precipitation is 30%.
Monday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91. East wind 5 to 13 mph.
Monday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 81. South southeast wind 6 to 11 mph. Chance of precipitation is 30%.
Tuesday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 92. Southeast wind 6 to 13 mph.
Tuesday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 81. Southeast wind 6 to 11 mph.
Wednesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91. East southeast wind 6 to 13 mph, with gusts as high as 18 mph.
Wednesday Night
Partly cloudy, with a low around 80.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
Thursday Night
Mostly clear, with a low around 80.
Friday
Sunny, with a high near 92.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Portland TX
 27.88°N 97.32°W
Last Update:
10:41 am CDT Aug 23, 2025
Forecast Valid:
11am CDT Aug 23, 2025-6pm CDT Aug 29, 2025
 
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