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

Thunderstorms and Heavy Rainfall in the Southeast, Montana, and Iowa; Lowell Begins to Impact Hawaii

Strong thunderstorms with damaging winds and heavy rain are expected across portions of the Southeast. Thunderstorms may produce large hail across portions of Montana. Heavy rainfall could produce flash flooding across Iowa and vulnerable areas in Utah. Lowell will bring heavy rain, dangerous swells and rip currents to portions of Hawaii. Sweltering heat persists across the South-Central US. 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 74%
Wind Speed SE 13 mph
Barometer 29.85 in
Dewpoint 78°F (26°C)
Visibility 10.00 mi
Heat Index100°F (38°C)
Last update 6 Sep 7:15 pm CDT
Extended Forecast for

Port Aransas TX

  • Tonight

    Tonight: Mostly clear, with a low around 83. South wind 9 to 13 mph.

    Low: 83 °F

    Mostly Clear

  • Labor Day

    Labor Day: Sunny, with a high near 89. Heat index values as high as 103. South wind 6 to 11 mph.

    High: 89 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 82. Southeast wind 9 to 13 mph.

    Low: 82 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 89. Heat index values as high as 106. South wind 6 to 11 mph.

    High: 89 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 83. Southeast wind 8 to 13 mph.

    Low: 83 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 88. Southeast wind 5 to 10 mph.

    High: 88 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 81. Southeast wind 6 to 10 mph.

    Low: 81 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 91. South wind 5 to 9 mph.

    High: 91 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 82. South wind around 11 mph, with gusts as high as 18 mph.

    Low: 82 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 83. South wind 9 to 13 mph.
Labor Day
Sunny, with a high near 89. Heat index values as high as 103. South wind 6 to 11 mph.
Monday Night
Mostly clear, with a low around 82. Southeast wind 9 to 13 mph.
Tuesday
Sunny, with a high near 89. Heat index values as high as 106. South wind 6 to 11 mph.
Tuesday Night
Mostly clear, with a low around 83. Southeast wind 8 to 13 mph.
Wednesday
A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 88. Southeast wind 5 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 81. Southeast wind 6 to 10 mph.
Thursday
Mostly sunny, with a high near 91. South wind 5 to 9 mph.
Thursday Night
Partly cloudy, with a low around 82. South wind around 11 mph, with gusts as high as 18 mph.
Friday
Sunny, with a high near 91.
Friday Night
Mostly clear, with a low around 82.
Saturday
Mostly sunny, with a high near 91.
Saturday Night
Partly cloudy, with a low around 81.
Sunday
Mostly sunny, with a high near 91.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Port Aransas TX
 27.84°N 97.06°W
Last Update:
6:06 pm CDT Sep 6, 2026
Forecast Valid:
7pm CDT Sep 6, 2026-6pm CDT Sep 13, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation