PORT ARANSAS, TX 78373 Weather Forecast & Current Conditions

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PORT ARANSAS/MUSTAN, TX
Current Weather

12:35 AM CDT SEP 11, 2026
Scattered Clouds
86°F
Feels Like: 100°F
Dewpoint: 79°F
Rel. Hum.: 80%
Visibility: 10 miles
Wind: S at 16 mph
Pressure: 29.95 inches
Last 72 hours

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PORT ARANSAS, TX 78373
Weather Forecast

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Snow Depth pages
REST OF TONIGHT
Mostly clear. Near steady temperature in the mid 80s. South winds 10 to 15 mph.
FRIDAY
Partly cloudy. Highs in the upper 80s. South winds 10 to 15 mph, increasing to southeast 15 to 20 mph in the afternoon. Heat index values up to 110.
FRIDAY NIGHT
Mostly clear. Lows in the mid 80s. South winds 15 to 20 mph.
SATURDAY
Sunny. Highs around 90. South winds 15 to 20 mph. Heat index values up to 112.
SATURDAY NIGHT
Partly cloudy. Lows in the lower 80s. Southeast winds 15 to 20 mph, diminishing to 10 to 15 mph after midnight. Heat index values up to 110 early.
SUNDAY
Partly cloudy. A chance of showers and thunderstorms in the morning. Highs in the upper 80s. Chance of rain 40 percent.
SUNDAY NIGHT
Partly cloudy. Near steady temperature in the mid 80s.
MONDAY
Partly cloudy in the morning, then becoming sunny. Highs in the upper 80s.
MONDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 80s.
TUESDAY
Partly cloudy in the morning, then clearing. Highs in the upper 80s.
TUESDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 80s.
WEDNESDAY
Mostly cloudy with a chance of showers and thunderstorms in the morning, then partly cloudy in the afternoon. Highs in the upper 80s. Chance of rain 30 percent.
WEDNESDAY NIGHT
Partly cloudy. Lows in the lower 80s.

Visible Weather Satellite
PORT ARANSAS, TX 78373
Infrared Weather Satellite
PORT ARANSAS, TX 78373
NEXRAD Weather Radar
PORT ARANSAS, TX 78373

PORT ARANSAS/MUSTAN, TX 3 hourly weather forecast

weather forecast created  6:00 PM MDT  9/10/2026
Friday
11 SEP 2026
PORT ARANSAS, TX 78373 weather forecast Day 1, 0 hours 1 AM 86° 98° Partly Cloudy 7%

0% Thunder
( 19% severe)
S   12 77% 78°
Low 84° PORT ARANSAS, TX 78373 weather forecast Day 1, 3 hours 4 AM 85° 97° Partly Cloudy S   12 80% 78°
High 91° PORT ARANSAS, TX 78373 weather forecast Day 1, 6 hours 7 AM 85° 97° Partly Cloudy 4%

0% Thunder
( 13% severe)
S   12 80% 78°

Partly Cloudy



PORT ARANSAS, TX 78373 weather forecast Day 1, 9 hours 10 AM 86° 100° Partly Cloudy S   12 80% 79°
PORT ARANSAS, TX 78373 weather forecast Day 1, 12 hours 1 PM 86° 100° Partly Cloudy 3%

0% Thunder
( 13% severe)
S   12 80% 79°
PORT ARANSAS, TX 78373 weather forecast Day 1, 15 hours 4 PM 87° 101° Partly Cloudy SSE   15 77% 79°
PORT ARANSAS, TX 78373 weather forecast Day 1, 18 hours 7 PM 87° 101° Partly Cloudy 1%

0% Thunder
( 4% severe)
SSE   15 77% 79°
PORT ARANSAS, TX 78373 weather forecast Day 1, 21 hours 10 PM 86° 100° Partly Cloudy SSE   15 80% 79°
Saturday
12 SEP 2026
PORT ARANSAS, TX 78373 weather forecast Day 2, 0 hours 1 AM 86° 100° Partly Cloudy 2%

0% Thunder
( 6% severe)
S   15 80% 79°
Low 83° PORT ARANSAS, TX 78373 weather forecast Day 2, 3 hours 4 AM 85° 98° Partly Cloudy S   14 82% 79°
High 91° PORT ARANSAS, TX 78373 weather forecast Day 2, 6 hours 7 AM 85° 98° Partly Cloudy 2%

0% Thunder
( 15% severe)
S   13 82% 79°

Partly Cloudy



PORT ARANSAS, TX 78373 weather forecast Day 2, 9 hours 10 AM 86° 100° Partly Cloudy S   14 80% 79°
PORT ARANSAS, TX 78373 weather forecast Day 2, 12 hours 1 PM 87° 101° Clear 0%

0% Thunder
( 16% severe)
SSE   14 77% 79°
PORT ARANSAS, TX 78373 weather forecast Day 2, 15 hours 4 PM 88° 103° Partly Cloudy SSE   15 75% 79°
PORT ARANSAS, TX 78373 weather forecast Day 2, 18 hours 7 PM 87° 101° Partly Cloudy 2%

0% Thunder
( 4% severe)
SE   15 77% 79°
PORT ARANSAS, TX 78373 weather forecast Day 2, 21 hours 10 PM 86° 100° Partly Cloudy SSE   14 80% 79°

PORT ARANSAS/MUSTAN, TX extended weather forecast

BAD DAY
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Low 84° Low 84° Low 84° Low 83° Low 83°
High 92° High 90° High 90° High 90° High 89°
PORT ARANSAS, TX 78373 weather forecast Day 3 PORT ARANSAS, TX 78373 weather forecast Day 4 PORT ARANSAS, TX 78373 weather forecast Day 5 PORT ARANSAS, TX 78373 weather forecast Day 6 PORT ARANSAS, TX 78373 weather forecast Day 7
Partly Cloudy
22% Rain
Partly Cloudy
33% Rain
Partly Cloudy
29% Rain
Partly Cloudy
26% Rain
Partly Cloudy
32% Rain
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