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

Heavy Rainfall for Portions of the West and Central U.S.; Monitoring Fire Weather Conditions for New England

Tropical moisture continues to flow across portions of the Great Basin, desert Southwest and California. Isolated instances of flash flooding remains possible. Meanwhile, a storm and associated frontal boundary will focus showers and thunderstorms for the center of the nation. For New England, dry and breezy conditions could enhance favorable fire weather conditions. Read More >

Current conditions at

Port Aransas, Mustang Beach Airport (KRAS)

Lat: 27.81°NLon: 97.09°WElev: 7ft.

Fair

87°F

31°C

Humidity 67%
Wind Speed E 13 mph
Barometer 29.96 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 20 Sep 4:55 pm CDT
Extended Forecast for

Port Aransas TX

  • Tonight

    Tonight: A 10 percent chance of showers after 5am. Mostly clear, with a low around 81. South southeast wind 9 to 13 mph.

    Low: 81 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms, mainly between 7am and 5pm. Mostly sunny, with a high near 85. Heat index values as high as 97. Southeast wind 7 to 14 mph.

    High: 85 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers, with thunderstorms also possible after 4am. Mostly clear, with a low around 82. Southeast wind 11 to 14 mph. Chance of precipitation is 30%.

    Low: 82 °F

    Chance
    Showers

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms. Sunny, with a high near 86. Heat index values as high as 100. South southeast wind 8 to 14 mph.

    High: 86 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms before 1am, then a chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Mostly clear, with a low around 82. Southeast wind 14 to 16 mph. Chance of precipitation is 30%.

    Low: 82 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers and thunderstorms before 4pm, then a slight chance of showers. Sunny, with a high near 87. South wind 11 to 16 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    High: 87 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers, mainly after 1am. Mostly clear, with a low around 82. Southeast wind 14 to 17 mph, with gusts as high as 20 mph.

    Low: 82 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 87. Southeast wind 9 to 13 mph. Chance of precipitation is 60%.

    High: 87 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 79. Southeast wind around 11 mph becoming southwest after midnight.

    Low: 79 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Tonight
A 10 percent chance of showers after 5am. Mostly clear, with a low around 81. South southeast wind 9 to 13 mph.
Sunday
A 40 percent chance of showers and thunderstorms, mainly between 7am and 5pm. Mostly sunny, with a high near 85. Heat index values as high as 97. Southeast wind 7 to 14 mph.
Sunday Night
A chance of showers, with thunderstorms also possible after 4am. Mostly clear, with a low around 82. Southeast wind 11 to 14 mph. Chance of precipitation is 30%.
Monday
A 40 percent chance of showers and thunderstorms. Sunny, with a high near 86. Heat index values as high as 100. South southeast wind 8 to 14 mph.
Monday Night
A slight chance of showers and thunderstorms before 1am, then a chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Mostly clear, with a low around 82. Southeast wind 14 to 16 mph. Chance of precipitation is 30%.
Tuesday
A chance of showers and thunderstorms before 4pm, then a slight chance of showers. Sunny, with a high near 87. South wind 11 to 16 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Tuesday Night
A 30 percent chance of showers, mainly after 1am. Mostly clear, with a low around 82. Southeast wind 14 to 17 mph, with gusts as high as 20 mph.
Wednesday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 87. Southeast wind 9 to 13 mph. Chance of precipitation is 60%.
Wednesday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 79. Southeast wind around 11 mph becoming southwest after midnight.
Thursday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.
Thursday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 79.
Friday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 85.
Friday Night
A 20 percent chance of showers. Mostly clear, with a low around 79.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Port Aransas TX
 27.84°N 97.06°W
Last Update:
12:26 pm CDT Sep 20, 2025
Forecast Valid:
5pm CDT Sep 20, 2025-6pm CDT Sep 27, 2025
 
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