PORT ISABEL, TX 78578 Weather Forecast & Current Conditions

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78578 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
PORT ISABEL, TX Current Weather
3:53 AM CDT JUN 28, 2025
Clear NA
Feels Like:	NA
Dewpoint:	NA
Rel. Hum.:	NA%
Visibility:	10 miles
Wind:	SE at 5 mph
Pressure:	29.99 inches
Last 72 hours
Local Area Snow Depth
Texas Current Weather
Texas MOS Forecast Weather

Weather Map

(Automated weather data from NWS/FAA)

78578 WEATHER FORECAST
10-Day model forecast maps 2025 Hurricanes	PORT ISABEL, TX 78578 Weather Forecast	Snowfall Forecast pages Snow Depth pages

TODAY
Cloudy this morning, then becoming partly sunny. Patchy fog this morning. Highs in the lower 80s. Southeast winds 5 to 10 mph.

TONIGHT
Mostly cloudy. Lows in the upper 60s. East winds 5 to 10 mph, becoming south after midnight.

WEDNESDAY
Partly sunny in the morning, then clearing. Breezy with highs around 90. Southwest winds 5 to 10 mph, increasing to southeast 20 to 25 mph with gusts up to 35 mph in the afternoon.

WEDNESDAY NIGHT
Mostly clear and breezy and less humid with lows in the mid 60s. Northeast winds 15 to 25 mph with gusts up to 40 mph.

THURSDAY
Sunny, breezy and much cooler with highs in the mid 70s. Northeast winds 15 to 25 mph with gusts up to 35 mph.

THURSDAY NIGHT
Partly cloudy. Lows in the upper 50s.

FRIDAY
Sunny. Highs in the mid 70s.

FRIDAY NIGHT AND SATURDAY
Partly cloudy and breezy. Lows around 60. Highs in the upper 70s.

SATURDAY NIGHT THROUGH SUNDAY NIGHT
Partly cloudy and windy. Lows in the upper 60s. Highs in the upper 70s.

MONDAY
Partly sunny and breezy. Highs in the lower 80s.

78578 WEATHER SATELLITE LOOPS

Visible Weather Satellite
PORT ISABEL, TX 78578

Infrared Weather Satellite
PORT ISABEL, TX 78578

78578 WEATHER RADAR LOOP

NEXRAD Weather Radar
PORT ISABEL, TX 78578

MOS COMPUTER WEATHER FORECAST

PORT ISABEL, TX 3 hourly weather forecast

weather forecast created 6:00 PM MDT 6/27/2025

DAY/DATE &
WEATHER FORECAST SUMMARY

Saturday
28 JUN 2025

1 AM

77°

78°

Mostly Cloudy

2%

0% Thunder
( 7% severe)

SE 7

97%

76°

Low 75°

4 AM

76°

75°

Mostly Cloudy

SSE 5

100%

76°

High 89°

7 AM

77°

78°

Partly Cloudy

5%

0% Thunder
( 6% severe)

SE 3

97%

76°

Mostly Cloudy

10 AM

84°

93°

Partly Cloudy

SE 8

77%

76°

1 PM

87°

98°

Mostly Cloudy

8%

0% Thunder
( 18% severe)

E 13

70%

76°

4 PM

86°

96°

Mostly Cloudy

E 15

72%

76°

7 PM

83°

92°

Mostly Cloudy

6%

0% Thunder
( 15% severe)

ESE 14

82%

77°

10 PM

79°

83°

Partly Cloudy

ESE 10

94%

77°

Sunday
29 JUN 2025

1 AM

78°

81°

Partly Cloudy

26%
RAIN
.01–.1 in

0% Thunder
( 27% severe)

SE 8

97%

77°

Low 74°

4 AM

77°

78°

Mostly Cloudy

SSE 7

97%

76°

High 88°

7 AM

78°

81°

Partly Cloudy

56%
RAIN
***

0% Thunder
( 29% severe)

SSE 6

94%

76°

Mostly Cloudy

Rain Likely

10 AM

83°

91°

Mostly Cloudy

SE 10

80%

76°

1 PM

86°

97°

Mostly Cloudy

45%
RAIN
>2 in

0% Thunder
( 33% severe)

SE 15

75%

77°

4 PM

84°

93°

Mostly Cloudy

SE 16

77%

76°

7 PM

82°

89°

Mostly Cloudy

18%
RAIN
.25–.5 in

0% Thunder
( 14% severe)

SE 15

82%

76°

10 PM

78°

81°

Mostly Cloudy

SE 13

94%

76°


PORT ISABEL, TX extended weather forecast
Monday 30 JUN 2025	Tuesday 1 JUL 2025	Wednesday 2 JUL 2025	Thursday 3 JUL 2025	Friday 4 JUL 2025
Low 76°	Low 76°	Low 76°	Low 78°	Low 80°
High 83°	High 87°	High 88°	High 91°	High 93°

Overcast 68% Rain	Overcast 64% Rain	Overcast 60% Rain	Partly Cloudy 51% Rain	Partly Cloudy 25% Rain

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