PORT ARANSAS, TX 78373 Weather Forecast & Current Conditions
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  78373 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)
 CURRENT WEATHER

PORT ARANSAS/MUSTAN, TX
Current Weather
1:15 AM CDT AUG 19, 2026
Scattered Clouds
84°F
Feels Like: 94°F
Dewpoint: 77°F
Rel. Hum.: 80%
Visibility: 10 miles
Wind: S at 12 mph
Pressure: 30.04 inches
Last 72 hours

Local Area Snow Depth

Texas Current Weather

Texas MOS Forecast Weather


Weather Map

(Automated weather data from NWS/FAA)
  78373 WEATHER FORECAST
10-Day model forecast maps
2026 Hurricanes

PORT ARANSAS, TX 78373
Weather Forecast

 Snowfall Forecast pages
Snow Depth pages
TODAY
Mostly cloudy this morning, then becoming partly cloudy. Highs in the upper 80s. South winds 10 to 15 mph, increasing to southeast 15 to 20 mph this afternoon.
TONIGHT
Partly cloudy. Lows in the lower 80s. South winds 15 to 20 mph.
THURSDAY
Partly cloudy. Highs around 90. South winds 10 to 15 mph, increasing to southeast 15 to 20 mph in the afternoon.
THURSDAY NIGHT
Partly cloudy. Lows in the lower 80s. South winds 15 to 20 mph.
FRIDAY
Partly cloudy. Highs around 90. South winds 10 to 15 mph.
FRIDAY NIGHT
Partly cloudy. Lows in the lower 80s.
SATURDAY
Partly cloudy in the morning, then becoming sunny. Highs in the upper 80s.
SATURDAY NIGHT
Mostly clear. Lows in the lower 80s.
SUNDAY
Sunny. Highs in the upper 80s.
SUNDAY NIGHT
Mostly clear. Lows in the lower 80s.
MONDAY
Sunny. Highs in the upper 80s.
MONDAY NIGHT
Mostly clear. Lows in the lower 80s.
TUESDAY
Partly cloudy in the morning, then becoming sunny. Highs in the upper 80s.

  78373 WEATHER SATELLITE LOOPS
Visible Weather Satellite
PORT ARANSAS, TX 78373
Infrared Weather Satellite
PORT ARANSAS, TX 78373
  78373 WEATHER RADAR LOOP
NEXRAD Weather Radar
PORT ARANSAS, TX 78373
 MOS COMPUTER WEATHER FORECAST

PORT ARANSAS/MUSTAN, TX 3 hourly weather forecast
weather forecast created  6:00 PM MDT  8/18/2026
Wednesday
19 AUG 2026		 PORT ARANSAS, TX 78373 weather forecast Day 1, 0 hours 1 AM 84° 95° Clear 1%

 0% Thunder
( 3% severe)		 S   12 82% 78°
Low 83° PORT ARANSAS, TX 78373 weather forecast Day 1, 3 hours 4 AM 84° 95° Partly Cloudy S   12 82% 78°
High 90° PORT ARANSAS, TX 78373 weather forecast Day 1, 6 hours 7 AM 84° 94° Mostly Cloudy 1%

 0% Thunder
( 6% severe)		 S   12 80% 77°

Partly Cloudy



 PORT ARANSAS, TX 78373 weather forecast Day 1, 9 hours 10 AM 84° 95° Partly Cloudy S   12 82% 78°
PORT ARANSAS, TX 78373 weather forecast Day 1, 12 hours 1 PM 85° 97° Partly Cloudy 0%

 0% Thunder
( 5% severe)		 S   12 80% 78°
PORT ARANSAS, TX 78373 weather forecast Day 1, 15 hours 4 PM 86° 98° Partly Cloudy SSE   13 77% 78°
PORT ARANSAS, TX 78373 weather forecast Day 1, 18 hours 7 PM 85° 97° Partly Cloudy 0%

 0% Thunder
( 2% severe)		 SE   14 80% 78°
PORT ARANSAS, TX 78373 weather forecast Day 1, 21 hours 10 PM 85° 98° Mostly Cloudy SSE   14 82% 79°
Thursday
20 AUG 2026		 PORT ARANSAS, TX 78373 weather forecast Day 2, 0 hours 1 AM 85° 98° Partly Cloudy 0%

 0% Thunder
( 4% severe)		 S   13 82% 79°
Low 82° PORT ARANSAS, TX 78373 weather forecast Day 2, 3 hours 4 AM 84° 96° Mostly Cloudy S   12 85% 79°
High 90° PORT ARANSAS, TX 78373 weather forecast Day 2, 6 hours 7 AM 84° 95° Partly Cloudy 0%

 0% Thunder
( 7% severe)		 S   12 82% 78°

Partly Cloudy



 PORT ARANSAS, TX 78373 weather forecast Day 2, 9 hours 10 AM 85° 98° Partly Cloudy S   12 82% 79°
PORT ARANSAS, TX 78373 weather forecast Day 2, 12 hours 1 PM 86° 100° Partly Cloudy 0%

 0% Thunder
( 5% severe)		 SSE   12 80% 79°
PORT ARANSAS, TX 78373 weather forecast Day 2, 15 hours 4 PM 86° 100° Partly Cloudy SSE   13 80% 79°
PORT ARANSAS, TX 78373 weather forecast Day 2, 18 hours 7 PM 86° 100° Partly Cloudy 0%

 0% Thunder
( 3% severe)		 SE   13 80% 79°
PORT ARANSAS, TX 78373 weather forecast Day 2, 21 hours 10 PM 85° 98° Partly Cloudy SSE   13 82% 79°

PORT ARANSAS/MUSTAN, TX extended weather forecast
Friday
21 AUG 2026		 Saturday
22 AUG 2026		 Sunday
23 AUG 2026		 Monday
24 AUG 2026		 Tuesday
25 AUG 2026
Low 83° Low 81° Low 80° Low 80° Low 81°
High 91° High 91° High 90° High 89° High 90°
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
11% Rain		 Partly Cloudy
13% Rain		 Clear
14% Rain		 Clear
11% Rain		 Clear
15% Rain
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