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
5:15 PM CDT MAY 20, 2026
Clear
81°F
Feels Like: 86°F
Dewpoint: 73°F
Rel. Hum.: 77%
Visibility: 10 miles
Wind: ESE at 6 mph
Pressure: 29.91 inches
Last 72 hours

Local Area Snow Depth

Texas Current Weather

Texas MOS Forecast Weather


Regional Weather Maps

(Automated weather data from NWS/FAA)
  78373 WEATHER FORECAST
10-Day model forecast maps
2025 Hurricanes

PORT ARANSAS, TX 78373
Weather Forecast

 Snowfall Forecast pages
Snow Depth pages
TONIGHT
Mostly cloudy. A chance of showers and thunderstorms after midnight. Some thunderstorms may produce heavy rainfall after midnight. Near steady temperature around 80. East winds 10 to 15 mph. Chance of rain 30 percent.
THURSDAY
A chance of thunderstorms. Showers, mainly in the morning. Some thunderstorms may produce heavy rainfall. Locally heavy rainfall possible in the morning. Highs in the lower 80s. Southeast winds 10 to 15 mph. Chance of rain 80 percent.
THURSDAY NIGHT
Mostly cloudy with a chance of showers and thunderstorms. Near steady temperature in the upper 70s. Southeast winds 10 to 15 mph. Chance of rain 40 percent.
FRIDAY
Mostly cloudy with a slight chance of showers and thunderstorms in the morning, then partly cloudy with a chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. South winds 10 to 15 mph. Chance of rain 50 percent.
FRIDAY NIGHT
Mostly cloudy with a chance of showers. A chance of thunderstorms, mainly in the evening. Near steady temperature in the lower 80s. Southeast winds 10 to 15 mph. Chance of rain 50 percent.
SATURDAY
Showers likely. A chance of thunderstorms in the morning, then thunderstorms likely in the afternoon. Near steady temperature in the lower 80s. Chance of rain 70 percent.
SATURDAY NIGHT
A chance of thunderstorms. Showers. Some thunderstorms may produce heavy rainfall. Near steady temperature around 80. Chance of rain 80 percent.
SUNDAY
A chance of thunderstorms. Showers likely, mainly in the morning. Some thunderstorms may produce heavy rainfall. Highs in the mid 80s. Chance of rain 70 percent.
SUNDAY NIGHT
Partly cloudy with a chance of showers and thunderstorms. Some thunderstorms may produce heavy rainfall. Near steady temperature around 80. Chance of rain 50 percent.
MEMORIAL DAY
Partly cloudy with a chance of showers and thunderstorms. Some thunderstorms may produce heavy rainfall. Highs in the mid 80s. Chance of rain 50 percent.
MONDAY NIGHT
Partly cloudy. A chance of showers after midnight. Near steady temperature around 80. Chance of rain 40 percent.
TUESDAY
Mostly cloudy with a chance of showers and thunderstorms in the morning, then partly cloudy in the afternoon. Highs in the mid 80s. Chance of rain 30 percent.
TUESDAY NIGHT
Partly cloudy. A chance of showers and thunderstorms after midnight. Near steady temperature in the lower 80s. Chance of rain 30 percent.

  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 AM MDT  5/20/2026
Wednesday
20 MAY 2026		 PORT ARANSAS, TX 78373 weather forecast Day 1, 12 hours 1 PM 81° 87° Mostly Cloudy 7%

 0% Thunder
( 13% severe)		 E   12 85% 76°
High 82° PORT ARANSAS, TX 78373 weather forecast Day 1, 15 hours 4 PM 81° 87° Mostly Cloudy ESE   13 82% 75°
Mostly Cloudy



 PORT ARANSAS, TX 78373 weather forecast Day 1, 18 hours 7 PM 81° 87° Mostly Cloudy 9%

 0% Thunder
( 11% severe)		 E   13 82% 75°
PORT ARANSAS, TX 78373 weather forecast Day 1, 21 hours 10 PM 80° 85° Mostly Cloudy E   12 85% 75°
Thursday
21 MAY 2026		 PORT ARANSAS, TX 78373 weather forecast Day 2, 0 hours 1 AM 80° 85° Mostly Cloudy 35%
RAIN
***		 0% Thunder
( 38% severe)		 ESE   12 88% 76°
Low 78° PORT ARANSAS, TX 78373 weather forecast Day 2, 3 hours 4 AM 79° 83° Mostly Cloudy SE   12 88% 75°
High 85° PORT ARANSAS, TX 78373 weather forecast Day 2, 6 hours 7 AM 78° 80° Mostly Cloudy 52%
RAIN
***		 0% Thunder
( 37% severe)		 SE   8 88% 74°

Mostly Cloudy

Rain Likely

 PORT ARANSAS, TX 78373 weather forecast Day 2, 9 hours 10 AM 78° 80° Mostly Cloudy E   10 85% 73°
PORT ARANSAS, TX 78373 weather forecast Day 2, 12 hours 1 PM 79° 83° Mostly Cloudy 50%
RAIN
***		 0% Thunder
( 38% severe)		 SSE   13 85% 74°
PORT ARANSAS, TX 78373 weather forecast Day 2, 15 hours 4 PM 80° 85° Partly Cloudy SSE   14 82% 74°
PORT ARANSAS, TX 78373 weather forecast Day 2, 18 hours 7 PM 79° 83° Mostly Cloudy 27%
RAIN
***		 0% Thunder
( 32% severe)		 SE   12 85% 74°
PORT ARANSAS, TX 78373 weather forecast Day 2, 21 hours 10 PM 79° 83° Mostly Cloudy SSE   10 85% 74°
Friday
22 MAY 2026		 PORT ARANSAS, TX 78373 weather forecast Day 3, 0 hours 1 AM 79° 83° Mostly Cloudy 24%
RAIN
>2 in		 0% Thunder
( 26% severe)		 SSE   10 88% 75°
Low 78° PORT ARANSAS, TX 78373 weather forecast Day 3, 3 hours 4 AM 79° 83° Mostly Cloudy S   10 88% 75°
High 87° PORT ARANSAS, TX 78373 weather forecast Day 3, 6 hours 7 AM 79° 83° Mostly Cloudy 32%
RAIN
.5–1 in		 0% Thunder
( 23% severe)		 S   9 88% 75°

Mostly Cloudy

Chance of Rain

 PORT ARANSAS, TX 78373 weather forecast Day 3, 9 hours 10 AM 80° 85° Mostly Cloudy S   10 85% 75°
PORT ARANSAS, TX 78373 weather forecast Day 3, 15 hours 1 PM 81° 87° Partly Cloudy 32%
RAIN
1–2 in		 0% Thunder
( 34% severe)		 S   13 85% 76°
PORT ARANSAS, TX 78373 weather forecast Day 3, 18 hours 4 PM 81° 87° Mostly Cloudy SSE   14 85% 76°
PORT ARANSAS, TX 78373 weather forecast Day 3, 21 hours 7 PM 80° 85° Partly Cloudy     ESE   12 85% 75°

PORT ARANSAS/MUSTAN, TX extended weather forecast
Saturday
23 MAY 2026		 Sunday
24 MAY 2026		 Monday
25 MAY 2026		 Tuesday
26 MAY 2026		 Wednesday
27 MAY 2026
Low 74° Low 73° Low 75° Low 76° Low 76°
High 84° High 82° High 85° High 85° High 83°
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 <!--SEARCHED_TOWN_NAME--> weather forecast Day 8
Overcast
74% Rain		 Overcast
62% Rain		 Partly Cloudy
30% Rain		 Mostly Cloudy
25% Rain		 Overcast
37% Rain
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